MONSANTO CO
SC 13D/A, 1998-05-11
CHEMICALS & ALLIED PRODUCTS
Previous: MISSISSIPPI POWER CO, U-1/A, 1998-05-11
Next: SUNGROUP INC, 10KSB/A, 1998-05-11





                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                       --------------------------------------

                                  SCHEDULE 13D
                                 (Rule 13d-101)

                     UNDER THE SECURITIES EXCHANGE ACT OF 1934
                                (Amendment No. 4)

                       --------------------------------------

                           DEKALB GENETICS CORPORATION
                                (Name of Issuer)

                       --------------------------------------

                      CLASS A COMMON STOCK, WITHOUT PAR VALUE
                         (Title of Class of Securities)

                       --------------------------------------

                                    244878 10 4
                      (Cusip Number of Class of Securities)

                       --------------------------------------

                              Barbara L. Blackford
                 Associate General Counsel and Assistant Secretary
                                Monsanto Company
                          800 North Lindbergh Boulevard
                            St. Louis, Missouri 63167
                             Telephone: 314-694-1000

              (Name, Address and Telephone Number of Person Authorized
                       to Receive Notices and Communications)

                       --------------------------------------

                                    Copy to:

                               Richard D. Katcher
                                  David M. Silk
                         Wachtell, Lipton, Rosen & Katz
                               51 West 52nd Street
                          New York, New York 10019-6150
                             Telephone: 212-403-1000

                                   May 8, 1998
              (Date of Event Which Requires Filing of this Statement)


<PAGE>



- ----------------------------------------------------
Cusip No. 244878 10 4 (for the Class A Common Stock)

- ----------------------------------------------------

- --------------------------------------------------------------------------------
  1   Name of Reporting Person
          I.R.S. Identification No. of above Persons (Entities Only)
          Monsanto Company
          43-0420020
- --------------------------------------------------------------------------------
  2   Check the Appropriate Box if a Member of a Group (See Instructions)
                                                                  (a) [ ]
                                                                  (b) [ ]
- --------------------------------------------------------------------------------
  3   SEC Use Only
- --------------------------------------------------------------------------------
  4   Source of Funds
          WC
- --------------------------------------------------------------------------------
  5       Check Box if Disclosure of Legal Proceedings is Required Pursuant to
          Items 2(d) or 2(e)                                          [ ]
- --------------------------------------------------------------------------------
  6   Citizenship or Place of Organization
          Delaware
- --------------------------------------------------------------------------------
    NUMBER OF        7  Sole Voting Power
      SHARES                485,442 Class A Shares
   BENEFICIALLY    -------------------------------------------------------------
     OWNED BY       8  Shared Voting Power
       EACH                 2,671,650 Class A Shares
    REPORTING      -------------------------------------------------------------
   PERSON WITH      9  Sole Dispositive Power
                            485,442 Class A Shares
                   -------------------------------------------------------------
                   10  Shared Dispositive Power
                            2,671,650 Class A Shares
- --------------------------------------------------------------------------------
 11   Aggregate Amount Beneficially Owned by Each Reporting Person
          3,157,092 Class A Shares
- --------------------------------------------------------------------------------
 12   Check Box if the Aggregate Amount in Row (11) Excludes Certain Shares [X]*
- --------------------------------------------------------------------------------
 13   Percent of Class Represented by Amount in Row (11) 
          67.9 Class A Shares**
- --------------------------------------------------------------------------------
 14   Type of Reporting Person
          CO
- --------------------------------------------------------------------------------
*  Excludes an aggregate of 100,380 shares of Class A Common Stock purchasable
   upon exercise of options held by Douglas C. Roberts, Virginia R. Holt, and
   John T. Roberts
** The Class A Common Stock is convertible into Class B Common Stock of the
   Issuer on a share-for-share basis.


                                       -2-
<PAGE>


      This Amendment No. 4 amends the Schedule 13D filed by Monsanto Company
("Monsanto") with the Securities and Exchange Commission on February 7, 1996.

      On May 11, 1998, Monsanto announced that it has entered into an Agreement
and Plan of Merger, dated as of May 8, 1998 (the "Merger Agreement"), among
Monsanto, Corn Acquisition Corporation, a wholly owned subsidiary of Monsanto
("Sub"), and DEKALB Genetics Corporation ("Dekalb").

     Pursuant to the terms of the Merger Agreement, Sub will commence a tender
offer (the "Offer") to acquire all of the Class A Common Stock, without par
value ("Class A Common Stock") and all of the Class B Common Stock, without par
value (the "Class B Common Stock") of Dekalb for $100 per share (as such price
may be increased, the "Offer Price"), to be followed by a merger in which any
remaining stock of Dekalb will be exchanged for cash at the same per share price
paid in the Offer. If shares are not accepted for purchase pursuant to the Offer
on or prior to May 9, 1999, the Offer Price will be increased by $0.50 per share
on the tenth day of each month until shares are so accepted, beginning with May
10, 1999, unless the Offer is earlier terminated in accordance with its terms.
If shares are accepted for purchase pursuant to the Offer on or prior to May 9,
1999, the total cost to Monsanto of the acquisition of all of the shares of
DEKALB (including the acquisition in 1996 of the shares that it currently owns)
will be approximately $2.5 billion.

      The Offer will be conditioned upon, among other things, there having been 
validly tendered and not withdrawn such number of shares of Class A Common Stock
(together with the shares of Class A Common Stock then held by Monsanto
or any of its controlled subsidiaries) that would constitute a majority of the
outstanding shares of Class A Common Stock (assuming the exercise of all options
to purchase, and the conversion or exchange of all securities convertible or 
exchangeable into, shares of Class A Common Stock) outstanding at the expiration
date of the Offer, as well as the expiration of any applicable waiting period
under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended.

     Concurrently with the execution of the Merger Agreement, Monsanto entered
into a Stockholders Agreement (the "Stockholders Agreement") with the voting
trustees (the "Voting Trustees") under the Roberts Family Voting Trust
Agreement, dated January 31, 1996 (the "Voting Trust Agreement") and the
registered holders (the "Registered Holders") of trust certificates pursuant to
the Voting Trust Agreement. Pursuant to the Stockholders Agreement, such Voting
Trustees and Registered Holders have agreed, among other things, to tender, in
accordance with the terms of the Offer, and not withdraw, subject to the terms
of the Stockholders Agreement, all of the 2,671,650 Shares of Class A Common
Stock held of record by the Voting Trustees pursuant to the Voting Trust
Agreement (the "Family Shares"). The Family Shares represent approximately 57%
of the outstanding shares of Class A Common Stock. The Family Shares and the
shares of Class A Common Stock owned by Monsanto represent approximately 44% of
the outstanding shares of Class A Common Stock on a fully diluted basis
(assuming exercise of all options and other rights to purchase such shares).
Pursuant to the Merger Agreement, in connection with the consummation of the
Offer, all such options to


                                       -3-

<PAGE>


purchase Shares of Class A Common Stock will become fully vested and
exercisable, and upon consummation of the Offer such options will be cancelled
and the holders thereof will be paid, in respect of each such option, the excess
of the Offer Price over the exercise price related thereto, minus any applicable
taxes required to be withheld in connection therewith. Pursuant to the
Stockholders Agreement, the Voting Trustees have also granted Monsanto an
irrevocable proxy to vote the Family Shares in favor of the Merger.

     Douglas C. Roberts, Virginia R. Holt and John T. Roberts, who are among the
signatories to the Stockholders Agreement, have also agreed pursuant to the
Stockholders Agreement promptly to deposit in the voting trust created pursuant
to the Voting Trust Agreement any shares of Class A Common Stock purchased upon
exercise of the 36,000, 16,247 and 48,133 options held by them, respectively.
Monsanto disclaims beneficial ownership of these shares.

      Monsanto currently expects to obtain funds to consummate the Offer and
the Merger from working capital, by borrowing on an unsecured basis, by the
issuance of commercial paper, from other sources which might be available to
Monsanto, or under some combination of the foregoing. The Offer is not
conditioned on obtaining financing.

      The foregoing is qualified in its entirely by reference to the copies of
the Merger Agreement and the Stockholders Agreement which are filed herewith and
incorporated herein by reference.




























                                       -4-
<PAGE>


                                    SIGNATURE

      After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.

Dated:  May 11, 1998

                                MONSANTO COMPANY

                                 By:  /s/  Barbara L. Blackford
                                      Name:  Barbara L. Blackford
                                      Title: Associate General Counsel and
                                             Assistant Secretary






































                                       -5-
<PAGE>


                                  EXHIBIT INDEX

Exhibit No.                                                         Page Number
- -----------                                                         -----------

    1           Agreement and Plan of Merger, dated as of May 8,
                1998, among Monsanto Company, Corn Acquisition 
                Corporation, and DEKALB Genetics Corporation.

    2           Stockholders Agreement, dated as of May 8, 1998, 
                among Monsanto Company, and the voting trustees, 
                individually and in his or her capacity as such 
                voting trustee, and the registered holders of 
                voting trust certificates, individually and in 
                his or her capacity as such registered holder, 
                under that certain Roberts Family Voting Trust 
                Agreement, dated as of January 31, 1996, 
                relating to shares of Class A Common Stock of 
                DEKALB Genetics Corporation.


































                                       -6-


                                                                       Exhibit 1














                          AGREEMENT AND PLAN OF MERGER


                             DATED AS OF MAY 8, 1998


                                      AMONG


                                MONSANTO COMPANY,


                          CORN ACQUISITION CORPORATION


                                       AND


                           DEKALB GENETICS CORPORATION




<PAGE>

                                TABLE OF CONTENTS

ARTICLE I - THE OFFER.......................................................2
         Section 1.1  The Offer.............................................2
         Section 1.2  Company Actions.......................................3
         Section 1.3  Investment Agreement..................................5
         Section 1.4  Adjustment to Offer Price.............................5

ARTICLE II - THE MERGER.....................................................5
         Section 2.1  The Merger............................................5
         Section 2.2  Closing...............................................5
         Section 2.3  Effective Time........................................5
         Section 2.4  Effects of the Merger.................................5
         Section 2.5  Restated Certificate of Incorporation 
                      and By-laws; Officers and Directors...................5

ARTICLE III - EFFECT OF THE MERGER ON THE STOCK OF THE CONSTITUENT 
              CORPORATIONS; SURRENDER OF CERTIFICATES.......................6
         Section 3.1  Effect on Stock.......................................6
         Section 3.2  Surrender of Certificates.............................7

ARTICLE IV - REPRESENTATIONS AND WARRANTIES OF THE COMPANY..................8
         Section 4.1  Organization..........................................8
         Section 4.2  Subsidiaries..........................................9
         Section 4.3  Capital Structure.....................................9
         Section 4.4  Authority............................................10
         Section 4.5  Consents and Approvals; No Violations................10
         Section 4.6  SEC Documents and Other Reports......................11
         Section 4.7  Absence of Material Adverse Change...................11
         Section 4.8  Information Supplied.................................12
         Section 4.9  Compliance with Laws.................................12
         Section 4.10  Tax Matters.........................................13
         Section 4.11  Liabilities.........................................13
         Section 4.12  Benefit Plans; Employees and Employment
                       Practices...........................................13
         Section 4.13  Litigation..........................................16
         Section 4.14  Environmental Matters...............................16
         Section 4.15  Charter Provisions..................................17
         Section 4.16  Intellectual Property...............................17
         Section 4.17  Brokers.............................................18
         Section 4.18  Contracts; Indebtedness.............................18

ARTICLE V - REPRESENTATIONS AND WARRANTIES OF PARENT AND SUB...............19
         Section 5.1  Organization.........................................19
         Section 5.2  Authority............................................19
         Section 5.3  Consents and Approvals; No Violations................19
         Section 5.4  Information Supplied.................................20

                                      -i-
<PAGE>

         Section 5.5  Interim Operations of Sub............................20
         Section 5.6  Brokers..............................................20
         Section 5.7  Financing............................................20

ARTICLE VI - COVENANTS RELATING TO CONDUCT OF BUSINESS.....................20
         Section 6.1  Conduct of Business by the Company 
                      Pending the Merger...................................20
         Section 6.2  No Solicitation......................................24
         Section 6.3  Third Party Standstill Agreements....................25
         Section 6.4  Disclosure to Parent; Delivery of 
                      Certain Filings......................................25

ARTICLE VII - ADDITIONAL AGREEMENTS........................................25
         Section 7.1  Employee Benefits....................................25
         Section 7.2  Severance Policy and Other Agreements................27
         Section 7.3  Bonus Programs.......................................27
         Section 7.4  Welfare Plans........................................28
         Section 7.5  Retirement Plan......................................29
         Section 7.6  Options; Restricted Stock Awards.....................29
         Section 7.7  Stockholder Approval; Preparation of
                      Proxy Statement......................................29
         Section 7.8  Access to Information................................30
         Section 7.9  Fees and Expenses....................................31
         Section 7.10  Public Announcements................................31
         Section 7.11  Real Estate Transfer Tax............................31
         Section 7.12  State Takeover Laws.................................32
         Section 7.13  Indemnification; Directors and 
                       Officers Insurance..................................32
         Section 7.14  Notification of Certain Matters.....................33
         Section 7.15  Board of Directors..................................34
         Section 7.16  Best Efforts........................................35
         Section 7.17  Certain Litigation..................................35
         Section 7.18  Return of Confidential Information..................36

ARTICLE VIII - CONDITIONS PRECEDENT........................................36
         Section 8.1  Conditions to Each Party's Obligation
                      to Effect the Merger.................................36

ARTICLE IX -  TERMINATION AND AMENDMENT....................................36
         Section 9.1  Termination..........................................36
         Section 9.2  Effect of Termination................................37
         Section 9.3  Amendment............................................38
         Section 9.4  Extension; Waiver....................................38

ARTICLE X - GENERAL PROVISIONS.............................................38
         Section 10.1  Non-Survival of Representations and 
                       Warranties and Agreements...........................38
         Section 10.2  Notices.............................................38
         Section 10.3  Interpretation; Definitions.........................40
         Section 10.4  Counterparts........................................45
         Section 10.5  Entire Agreement; No Third-Party Beneficiaries......45

                                      -ii-
<PAGE>


        
         Section 10.6  Governing Law.......................................46
         Section 10.7  Assignment..........................................46
         Section 10.8  Severability........................................46
         Section 10.9  Enforcement of this Agreement.......................46
         Section 10.10  Obligations of Subsidiaries........................47
         Section 10.11.  Merger of the Company into Sub....................47

Exhibit A - Conditions of the Offer
Exhibit B - Amended and Restated Certificate of Incorporation of the Company











<PAGE>

                          AGREEMENT AND PLAN OF MERGER

     AGREEMENT AND PLAN OF MERGER, dated as of May 8, 1998 (this "Agreement")
among Monsanto Company, Delaware corporation ("Parent"), Corn Acquisition
Corporation, a Delaware corporation and a wholly-owned subsidiary of Parent
("Sub"), and DEKALB Genetics Corporation, a Delaware corporation (the "Company")
(Sub and the Company being hereinafter collectively referred to as the
"Constituent Corporations"). Except as otherwise set forth herein, capitalized
(and certain other) terms used herein shall have the meanings set forth in
Section 10.3.

                              W I T N E S S E T H:

     WHEREAS, the respective Boards of Directors of Parent, Sub and the Company
have approved the acquisition of the Company by Parent on the terms and subject
to the conditions set forth in this Agreement;

     WHEREAS, in furtherance of such acquisition, Parent proposes to cause Sub
to make a tender offer (as it may be amended from time to time as permitted
under this Agreement, the "Offer") to purchase all of the shares of Class A
Common Stock, without par value, of the Company (the "Company Class A Common
Stock") and all of the shares of Class B Common Stock, without par value, of the
Company (the "Company Class B Common Stock" and together with the Company Class
A Common Stock, the "Shares") at a purchase price of $100 per Share (such
purchase price, as it may be increased pursuant to Section 1.4, being referred
to as the "Offer Price"), net to the seller in cash, without interest thereon,
upon the terms and subject to the conditions set forth in this Agreement; and
the Board of Directors of the Company has adopted resolutions approving the
Offer, this Agreement and the Merger and recommending that the Company's
stockholders accept the Offer and that the holders of the Company Class A Common
Stock adopt this Agreement;

     WHEREAS, the respective Boards of Directors of Sub and the Company have
each approved the merger of Sub with and into the Company (the "Merger"), upon
the terms and subject to the conditions set forth in this Agreement, whereby
each of the Shares, other than Shares owned directly or indirectly by Parent or
the Company and Dissenting Shares, will be converted into the right to receive
the price per Share paid in the Offer;

     WHEREAS, the Board of Directors of the Company or the Long-Term Incentive
Plan Administrative Committee of the Board of Directors of the Company has
approved the cancellation of Company Stock Options in consideration for the cash
payments to be made pursuant to this Agreement;

     WHEREAS, the Board of Directors of the Company has approved the terms of
the Stockholders Agreement (the "Stockholders Agreement") to be entered into by
Parent, Sub and certain holders of Company Class A Common Stock, pursuant to
which such holders of Company Class A Common Stock have, among other things,
agreed to vote such shares of Company Class A Common Stock in favor of the
Merger and tender such shares of Company Class A Common Stock pursuant to the
Offer; and


                                       1
<PAGE>



     WHEREAS, Parent, Sub and the Company desire to make certain
representations, warranties, covenants and agreements in connection with the
Offer and the Merger and also to prescribe various conditions to the Offer and
the Merger.

     NOW, THEREFORE, in consideration of the foregoing and the mutual covenants
and agreements herein contained, and intending to be legally bound hereby,
Parent, Sub and the Company hereby agree as follows:

                              ARTICLE I - THE OFFER

     Section 1.1 The Offer. (a) Provided that this Agreement shall not have been
terminated in accordance with Section 9.1 and subject to the provisions of this
Agreement, as promptly as practicable but in no event later than five business
days after the date of the public announcement by Parent and the Company of this
Agreement, Sub shall, and Parent shall cause Sub to, commence the Offer. The
obligation of Sub to, and of Parent to cause Sub to, commence the Offer and
accept for payment, and pay for, any Shares tendered pursuant to the Offer shall
be subject only to the conditions set forth in Exhibit A (the "Offer
Conditions") (any of which may be waived in whole or in part by Sub in its sole
discretion, provided that, without the prior written consent of the Company, Sub
shall not waive the Minimum Condition (as defined in Exhibit A)). Sub expressly
reserves the right to modify the terms of the Offer, except that, without the
prior written consent of the Company, Sub shall not (i) reduce the number of
Shares to be purchased in the Offer, (ii) reduce the Offer Price, (iii) impose
any conditions to the Offer in addition to the Offer Conditions or modify the
Offer Conditions (other than to waive any Offer Conditions to the extent not
prohibited by this Agreement), (iv) except as provided in the next sentence,
extend the Offer, (v) change the form of consideration payable in the Offer or
(vi) make any other change or modification in any of the terms of the Offer in
any manner that is adverse to the holders of Shares. Notwithstanding the
foregoing, Sub may, without the consent of the Company, (i) extend the Offer, if
at the scheduled or extended expiration date of the Offer any of the Offer
Conditions shall not be satisfied or waived, until such time as such conditions
are satisfied or waived, (ii) extend the Offer for any period required by any
rule, regulation, interpretation or position of the SEC or the staff thereof
applicable to the Offer and (iii) on one or more occasions, extend the Offer for
a period of up to an aggregate of 15 business days if, on a scheduled expiration
date on which the Offer Conditions shall have been satisfied or waived, the
number of shares of Company Class A Common Stock (together with any shares of
Company Class A Common Stock held by Parent or any of its Subsidiaries) that
have been validly tendered and not withdrawn represent more than 70% of the then
issued and outstanding shares of Company Class A Common Stock, but less than 90%
of the then issued and outstanding shares of Company Class A Common Stock, and
the number of shares of Company Class B Common Stock (together with any shares
of Company Class B Common Stock held by Parent or any of its Subsidiaries) that
have been validly tendered and not withdrawn represent more than 70% of the then
issued and outstanding shares of Company Class B Common Stock, but less than 90%
of the then issued and outstanding shares of Company Class B Common Stock.
Parent and Sub agree that Sub will not terminate the Offer between scheduled
expiration dates (except in the event that this Agreement is terminated pursuant
to Section 9.1) and that, in the event that Sub would otherwise be entitled to
terminate the Offer at any scheduled expiration date thereof due to the failure
of one or more of the Offer Conditions, unless this Agreement shall have been
terminated pursuant to Section 9.1, Sub shall, and




                                       2
<PAGE>



Parent shall cause Sub to, extend the Offer until such date as the Offer
Conditions have been satisfied or such later date as required by applicable law;
provided, however, that nothing herein shall require Sub to extend the Offer
beyond the Outside Date. Subject to the terms and conditions of the Offer and
this Agreement, Sub shall, and Parent shall cause Sub to, accept for payment and
pay for, all Shares validly tendered and not withdrawn pursuant to the Offer
that Sub is permitted to accept for payment and pay for under applicable law, as
soon as practicable (and, in any event, within three business days after the
later of the expiration of the Offer and the receipt by the depository for the
Offer of the certificates representing such tendered shares). If this Agreement
is terminated by either Parent or Sub or by the Company, other than pursuant to
Section 9.1(d), Sub shall, and Parent shall cause Sub to, terminate promptly the
Offer. If this Agreement is terminated pursuant to Section 9.1(d), Parent or Sub
may terminate the Offer. Sub may, at any time, transfer or assign to one or more
corporations directly or indirectly wholly-owned by Parent the right to purchase
all or any portion of the Shares tendered pursuant to the Offer, but any such
transfer or assignment shall not relieve Sub of its obligations under the Offer
or prejudice the rights of tendering stockholders to receive payment for Shares
validly tendered and accepted for payment.

     (b) On the date of commencement of the Offer, Parent and Sub shall file
with the SEC a Tender Offer Statement on Schedule 14D-1 (the "Schedule 14D-1")
with respect to the Offer, which shall contain an offer to purchase and a
related letter of transmittal and summary advertisement (such Schedule 14D-1 and
the documents included therein pursuant to which the Offer will be made,
together with any supplements or amendments thereto, the "Offer Documents"), and
Parent and Sub shall cause the Offer Documents to be disseminated to holders of
Shares as and to the extent required by applicable federal securities laws.
Parent, Sub and the Company each agrees promptly to correct any information
provided by it for use in the Offer Documents if and to the extent that such
information shall have become false or misleading in any material respect, and
Parent and Sub further agree to take all steps necessary to cause the Schedule
14D-1 as so corrected to be filed with the SEC and the other Offer Documents as
so corrected to be disseminated to holders of Shares, in each case as and to the
extent required by applicable federal securities laws. The Company and its
counsel shall be given reasonable opportunity to review and comment upon the
Offer Documents prior to their filing with the SEC or dissemination to the
Company's stockholders. Parent and Sub agree to provide the Company and its
counsel any comments Parent, Sub or their counsel may receive from the SEC or
its staff with respect to the Offer Documents promptly after the receipt of such
comments and to cooperate with the Company and its counsel in responding to such
comments.

     (c) Parent shall provide or cause to be provided to Sub on a timely basis
all funds necessary to accept for payment, and pay for, any Shares that are
validly tendered and not withdrawn pursuant to the Offer and that Sub is
permitted to accept for payment under applicable law and pay for, pursuant to
the Offer.

     Section 1.2 Company Actions. (a) The Company hereby approves of and
consents to the Offer and represents and warrants that the Board of Directors of
the Company, at a meeting duly called and held, duly adopted (by unanimous vote,
with the Investor Nominees (as defined in the Investment Agreement) not
participating) resolutions approving the Offer, this Agreement, the Merger and
the Stockholders Agreement, determining that the Offer and the Merger are fair
to, and in the best interests of, the Company's stockholders and recommending
that the Company's


                                       3
<PAGE>



stockholders accept the Offer and approve and adopt this Agreement and the
Merger (it being understood that, notwithstanding anything in this Agreement to
the contrary, if the Company's Board of Directors modifies or withdraws its
recommendation in accordance with the terms of Section 6.2(b), such modification
or withdrawal shall not constitute a breach of this Agreement). The Company
represents and warrants that its Board of Directors has received the written
opinion of Merrill Lynch, Pierce, Fenner & Smith Incorporated ("Merrill Lynch")
that, as of the date hereof, the proposed consideration to be received by the
Company's stockholders pursuant to the Offer and the Merger is fair to the
Company's stockholders from a financial point of view. The Company hereby
consents to the inclusion in the Offer Documents of the recommendations of the
Company's Board of Directors described in this Section 1.2.

     (b) On the date the Offer Documents are filed with the SEC, the Company
shall file with the SEC a Solicitation/Recommendation Statement on Schedule
14D-9 with respect to the Offer (such Schedule 14D-9, as amended from time to
time, the "Schedule 14D-9") containing the recommendation described in Section
1.2(a) (subject to the right of the Board of Directors of the Company to modify
or withdraw such recommendation in accordance with Section 6.2(b)) and shall
cause the Schedule 14D-9 to be disseminated to the Company's stockholders as and
to the extent required by applicable federal securities laws. Each of the
Company, Parent and Sub agrees promptly to correct any information provided by
it for use in the Schedule 14D-9 if and to the extent that such information
shall have become false or misleading in any material respect, and the Company
further agrees to take all steps necessary to amend or supplement the Schedule
14D-9 and to cause the Schedule 14D-9 as so amended or supplemented to be filed
with the SEC and disseminated to the Company's stockholders, in each case as and
to the extent required by applicable federal securities laws. Parent and its
counsel shall be given reasonable opportunity to review and comment upon the
Schedule 14D-9 prior to its filing with the SEC or dissemination to the
Company's stockholders. The Company agrees to provide Parent and its counsel any
comments the Company or its counsel may receive from the SEC or its staff with
respect to the Schedule 14D-9 promptly after the receipt of such comments and to
cooperate with Parent, Sub and their counsel in responding to such comments.

     (c) In connection with the Offer and the Merger, the Company shall cause
its transfer agent to furnish Sub promptly with mailing labels containing the
names and addresses of the record holders of Shares as of a recent date and of
those persons becoming record holders subsequent to such date, together with
copies of all lists of stockholders, security position listings and computer
files and all other information in the Company's possession or control regarding
the beneficial owners of Shares and any securities convertible into Shares, and
shall furnish to Sub such information and assistance (including updated lists of
stockholders, security position listings and computer files) as Parent or Sub
may reasonably request in communicating the Offer to the record and beneficial
holders of Shares. Subject to the requirements of applicable law, and except for
such steps as are necessary to disseminate the Offer Documents and any other
documents necessary to consummate the Merger, Parent and Sub and their
affiliates, associates and agents shall hold in confidence the information
contained in any such labels, listings and files, will use such information only
in connection with the Offer and the Merger and, if this Agreement shall be
terminated, will promptly, upon request, deliver, and will use reasonable
efforts to cause their affiliates, associates and agents to deliver, to the
Company all copies of such information then in their possession or control.




                                       4
<PAGE>



     Section 1.3 Investment Agreement. Effective upon the acquisition of Shares
pursuant to the Offer, Section 11 (Standstill) of the Investment Agreement shall
be eliminated in its entirety and Sections 9.3 through 9.7 of the By-laws of the
Company shall be eliminated in their entirety. At the Effective Time of the
Merger, the Investment Agreement shall terminate in its entirety.

     Section 1.4 Adjustment to Offer Price. Notwithstanding anything else to the
contrary contained herein, on the tenth day of each calendar month, commencing
with May 10, 1999, the Offer Price as in effect on the ninth day of such
calendar month shall be increased by an amount equal to $.50 per Share. All
references to the Offer Price in this Agreement shall be deemed to be to the
Offer Price as so adjusted.

                             ARTICLE II - THE MERGER

     Section 2.1 The Merger. Upon the terms and subject to the conditions
hereof, and in accordance with the DGCL, Sub shall be merged with and into the
Company at the Effective Time. Following the Effective Time, the separate
corporate existence of Sub shall cease and the Company shall continue as the
surviving corporation (the "Surviving Corporation") and shall succeed to and
assume all the rights and obligations of Sub and the Company in accordance with
the DGCL.

     Section 2.2 Closing. The closing of the Merger will take place at 10:00
a.m. on a date mutually agreed to by Parent and the Company, which shall be no
later than the second business day after satisfaction or waiver of the
conditions set forth in Article VIII (the "Closing Date"), at the offices of
Sidley & Austin, One First National Plaza, Chicago, Illinois 60603, unless
another date, time or place is agreed to in writing by the parties hereto.

     Section 2.3 Effective Time. The Merger shall become effective when a
Certificate of Merger or, if applicable, a Certificate of Ownership and Merger
(each, the "Certificate of Merger"), executed in accordance with the relevant
provisions of the DGCL, is duly filed with the Secretary of State of the State
of Delaware, or at such other time as Sub and the Company shall agree should be
specified in the Certificate of Merger. When used in this Agreement, the term
"Effective Time" shall mean the later of the date and time at which the
Certificate of Merger is duly filed with the Secretary of State of the State of
Delaware or such later time established by the Certificate of Merger. The filing
of the Certificate of Merger shall be made as soon as practicable after the
satisfaction or waiver of the conditions to the Merger set forth herein.



     Section 2.4 Effects of the Merger. The Merger shall have the effects set
forth in the DGCL. 

     Section 2.5 Restated Certificate of Incorporation and By-laws; Officers and
Directors.

     (a) If the Merger is effected in accordance with Section 251 of the DGCL,
the Restated Certificate of Incorporation of the Company, as in effect
immediately prior to the Effective Time, shall be amended and restated in its
entirety as of the Effective Time as set forth in Exhibit B hereto. As so
amended, such Restated Certificate of Incorporation shall be the Restated
Certificate of Incorporation of the Surviving Corporation until thereafter
changed or amended as provided therein or by applicable law.


                                       5
<PAGE>



     (b) The By-laws of the Company shall be amended as of the Effective Time to
read in their entirety as the By-laws of Sub, as in effect immediately prior to
the Effective Time, until thereafter changed or amended as provided by the
Restated Certificate of Incorporation of the Surviving Corporation or by
applicable law. (c) The directors of Sub immediately prior to the Effective Time
shall be the directors of the Surviving Corporation, until the next annual
meeting of stockholders (or the earlier of their resignation or removal) and
until their respective successors are duly elected and qualified, as the case
may be. (d) The officers of the Company immediately prior to the Effective Time
shall be the officers of the Surviving Corporation until the earlier of their
resignation or removal and until their respective successors are duly elected
and qualified, as the case may be.

       ARTICLE III - EFFECT OF THE MERGER ON THE STOCK OF THE CONSTITUENT
                     CORPORATIONS; SURRENDER OF CERTIFICATES

     Section 3.1 Effect on Stock. As of the Effective Time, by virtue of the
Merger and without any action on the part of any of Sub, the Company or the
holders of any securities of the Constituent Corporations:

     (a) Capital Stock of Sub. Each issued and outstanding share of capital
stock of Sub shall be converted into and become one validly issued, fully paid
and nonassessable share of common stock, $.01 par value, of the Surviving
Corporation.

     (b) Treasury Stock and Parent Owned Stock.  Each Share that is owned by the
Company  or by any  Subsidiary  of the  Company  and each Share that is owned by
Parent,  Sub or any other Subsidiary of Parent shall  automatically be cancelled
and retired and shall cease to exist, and no consideration shall be delivered in
exchange therefor.

     (c) Conversion of Shares. Subject to Section 3.1(d), each Share issued and
outstanding (other than shares to be cancelled in accordance with Section
3.1(b)), shall be cancelled and be converted into the right to receive from the
Surviving Corporation in cash, without interest or dividends, the price per
Share paid in the Offer (the "Merger Consideration"). As of the Effective Time,
all such Shares shall be cancelled in accordance with this paragraph, and when
so cancelled, shall no longer be outstanding and shall automatically be retired
and shall cease to exist, and each holder of a certificate representing any such
Shares shall cease to have any rights with respect thereto, except the right to
receive the Merger Consideration for each such Share, without interest or
dividends.

     (d) Shares of Dissenting Stockholders. Notwithstanding anything in this
Agreement to the contrary, any issued and outstanding Shares held by a person (a
"Dissenting Stockholder") who has not voted in favor of or consented to the
Merger and complies with all the provisions of the DGCL concerning the right of
holders of Shares to require appraisal of their Shares ("Dissenting Shares")



                                       6
<PAGE>



shall not be converted as described in Section 3.1(c), but shall become the
right to receive such consideration as may be determined to be due to such
Dissenting Stockholder pursuant to the DGCL. If, after the Effective Time, such
Dissenting Stockholder withdraws his demand for appraisal or fails to perfect or
otherwise loses his right of appraisal, in any case pursuant to the DGCL, his
Shares shall be deemed to be converted as of the Effective Time into the right
to receive the Merger Consideration for each such Share, without interest or
dividends. The Company shall give Parent prompt notice of any demands for
appraisal of Shares received by the Company. The Company shall not, without the
prior written consent of Parent, make any payment with respect to, or settle or
offer to settle, any such demands.

     Section 3.2 Surrender of Certificates. (a) Paying Agent. Prior to the
Effective Time, Parent shall designate a bank or trust company who shall be
reasonably satisfactory to the Company to act as paying agent in the Merger (the
"Paying Agent"), and from time to time, on, prior to or after the Effective
Time, Parent shall make available, or cause the Surviving Corporation to make
available, to the Paying Agent cash in the amounts necessary for the payment of
the Merger Consideration as provided in Section 3.1 upon surrender of
certificates representing Shares as part of the Merger. Funds made available to
the Paying Agent shall be invested by the Paying Agent as directed by Parent,
provided that such investments shall only be in obligations of or guaranteed by
the United States of America, in commercial paper obligations rated A-1 or P-1
or better by Moody's Investors Service, Inc. or Standard & Poor's Corporation,
respectively, or in certificates of deposit, bank repurchase agreements or
banker's acceptances of commercial banks with capital exceeding $1 billion (it
being understood that any and all interest or income earned on funds made
available to the Paying Agent pursuant to this Agreement shall be turned over to
Parent).

     (b) Exchange Procedure. As soon as reasonably practicable after the
Effective Time, the Surviving Corporation shall cause the Paying Agent to mail
to each holder of record of a certificate or certificates that immediately prior
to the Effective Time represented Shares (the "Certificates"), (i) a letter of
transmittal (which shall specify that delivery shall be effected, and risk of
loss and title to the Certificates shall pass, only upon delivery of the
Certificates to the Paying Agent and shall be in a form and have such other
provisions as Parent may reasonably specify) and (ii) instructions for use in
effecting the surrender of the Certificates in exchange for the Merger
Consideration as provided in Section 3.1. Upon surrender of a Certificate for
cancellation to the Paying Agent or to such other agent or agents as may be
appointed by Parent, together with such letter of transmittal, duly executed,
and such other documents as may reasonably be required by the Paying Agent, the
holder of such Certificate shall be entitled to receive in exchange therefor the
amount of cash, without interest or dividends, into which the Shares theretofore
represented by such Certificate shall have been converted pursuant to Section
3.1, and the Certificate so surrendered shall forthwith be cancelled. In the
event of a transfer of ownership of Shares that is not registered in the
transfer records of the Company, payment may be made to a person other than the
person in whose name the Certificate so surrendered is registered, if such
Certificate shall be properly endorsed or otherwise be in proper form for
transfer and the person requesting such payment shall pay any transfer or other
taxes required by reason of the payment to a person other than the registered
holder of such Certificate or establish to the satisfaction of the Surviving
Corporation that such tax has been paid or is not applicable. Until surrendered
as contemplated by this Section 3.2, each Certificate (other than Certificates
representing Dissenting Shares) shall be deemed at any time after the Effective
Time

                                       7
<PAGE>

to represent only the right to receive upon such surrender the amount of cash,
without interest, into which the shares of stock theretofore represented by such
Certificate shall have been converted pursuant to Section 3.1. No interest will
be paid or will accrue on the cash payable upon the surrender of any
Certificate. Parent or the Paying Agent shall be entitled to deduct and withhold
from the consideration otherwise payable pursuant to this Agreement to any
holder of Shares such amounts as Parent or the Paying Agent is required to
deduct and withhold with respect to the making of such payment under the Code or
under any provision of state, local or foreign tax law. To the extent that
amounts are so withheld by Parent or the Paying Agent, such withheld amounts
shall be treated for all purposes of this Agreement as having been paid to the
holder of the Shares in respect of which such deduction and withholding was made
by the Parent or the Paying Agent.

     (c) No Further Ownership Rights in Shares. All cash paid upon the surrender
of Certificates in accordance with the terms of this Article III shall be deemed
to have been paid in full satisfaction of all rights pertaining to the Shares
theretofore represented by such Certificates. At the Effective Time, the stock
transfer books of the Company shall be closed, and there shall be no further
registration of transfers on the stock transfer books of the Surviving
Corporation of the Shares that were outstanding immediately prior to the
Effective Time. If, after the Effective Time, Certificates are presented to the
Surviving Corporation or the Paying Agent for any reason, they shall be
cancelled and exchanged as provided in this Article III.

     (d) Termination of Payment Fund. Any portion of the funds made available to
Paying Agent to pay the Merger Consideration which remains undistributed to the
holders of Shares for twelve months after the Effective Time shall be delivered
to Parent, upon demand, and any holders of Shares who have not theretofore
complied with this Article III and the instructions set forth in the letter of
transmittal mailed to such holders after the Effective Time shall thereafter
look only to the Surviving Corporation (subject to abandoned property, escheat
or other similar laws) for payment of the Merger Consideration to which they are
entitled, without interest or dividends.

     (e) No Liability. None of Parent, Sub, the Company or the Paying Agent
shall be liable to any person in respect of any cash delivered to a public
official pursuant to any applicable abandoned property, escheat or similar law.


                 ARTICLE IV - REPRESENTATIONS AND WARRANTIES OF THE COMPANY

         The Company represents and warrants to Parent and Sub as follows:

     Section 4.1 Organization. The Company and each of its Subsidiaries is a
corporation duly organized, validly existing and in good standing under the laws
of the jurisdiction of its incorporation and has requisite corporate power and
authority to carry on its business as now being conducted, except where the
failure to be so organized, existing and in good standing or to have such power
and authority would not reasonably be expected to have a Material Adverse Effect
on the Company. The Company and each of its Subsidiaries is duly qualified or
licensed to do business and in good standing in each jurisdiction in which the
nature of its business or the ownership or leasing of its properties makes such
qualification or licensing necessary, except in such jurisdictions where the
failure to be

                                       8
<PAGE>

so duly qualified or licensed and in good standing would not reasonably be
expected to have a Material Adverse Effect on the Company or prevent or
materially delay the consummation of the Offer and/or the Merger. The Company
has delivered to Parent complete and correct copies of its Restated Certificate
of Incorporation and By-laws and has made available to Parent the Certificate of
Incorporation and By-laws (or similar organizational documents) of each of its
Subsidiaries designated in Item 4.1 of the Company Letter as being a Significant
Subsidiary of the Company (collectively, the "Significant Subsidiaries").

     Section 4.2 Subsidiaries. Item 4.2 of the Company Letter lists each
Subsidiary of the Company. All of the outstanding shares of capital stock of
each Subsidiary that is a corporation have been validly issued and are fully
paid and nonassessable. Except as set forth in Item 4.2 of the Company Letter,
all of the outstanding shares of capital stock of each Subsidiary of the Company
are owned by the Company, by another Subsidiary of the Company or by the Company
and another Subsidiary of the Company, free and clear of all Liens. Except as
set forth in Item 4.2 of the Company Letter and except for the capital stock of
its Subsidiaries, the Company does not own, directly or indirectly, any capital
stock or other ownership interest in any corporation, partnership, joint
venture, limited liability company or other entity which is material to the
business or financial position of the Company and its Subsidiaries, taken as a
whole.

     Section 4.3 Capital Structure. The authorized capital stock of the Company
consists of 500,000 shares of Preferred Stock, $1.00 par value (the "Company
Preferred Stock") and 165,000,000 shares of Common Stock, without par value,
divided into two classes, consisting of 35,000,000 shares of Company Class A
Common Stock and 130,000,000 shares of Company Class B Common Stock. At the
close of business on April 30, 1998, (i) no shares of Company Preferred Stock
were outstanding, (ii) 4,646,911 shares of Company Class A Common Stock and
29,975,568 shares of Company Class B Common Stock were issued and outstanding,
(iii) 287,182 shares of Company Class A Common Stock and no shares of Company
Class B Common Stock were held by the Company in treasury and (iv) 2,339,249
shares of Company Class A Common Stock and no shares of Company Class B Common
Stock were reserved for issuance pursuant to outstanding stock options (the
"Company Stock Options") or other rights to purchase Shares under the Company's
Long Term Incentive Plan, the Company's Savings and Investment Plan and the
Company's Director Stock Option Plan (the "Company Stock Plans") and an
additional 1,692,397 shares of Company Class A Common Stock were reserved for
the grant of additional purchase rights thereunder (including 73,937 shares
reserved for the grant of purchase rights under the Company's Savings and
Investment Plan). Except (i) as set forth above, (ii) as provided in the
Investment Agreement between Parent and the Company dated as of January 31, 1996
(the "Investment Agreement"), (iii) the issuance of Shares pursuant to options
granted under the Company Stock Plans and outstanding on April 30, 1998 and (iv)
the issuance of shares of Company Class B Common Stock in exchange for shares of
Company Class A Common Stock in accordance with the Company's Restated
Certificate of Incorporation, as of the date hereof, no Shares were issued,
reserved for issuance or outstanding and there are not any phantom stock or
other contractual rights the value of which is determined in whole or in part by
the value of any capital stock of the Company ("Stock Equivalents"). There are
no outstanding stock appreciation rights with respect to the capital stock of
the Company. Each outstanding Share is, and each Share which may be issued
pursuant to the Company Stock Plans and the other agreements and instruments
listed above will be, when issued, 


                                       9
<PAGE>

duly authorized, validly issued, fully paid and nonassessable and not subject to
preemptive rights. There are no outstanding bonds, debentures, notes or other
indebtedness of the Company having the right to vote (or convertible into, or
exchangeable for, securities having the right to vote) on any matter on which
the Company's stockholders may vote. Except as set forth above or in Item 4.3 of
the Company Letter, there are no securities, options, warrants, calls, rights,
commitments, agreements, arrangements or undertakings of any kind to which the
Company or any of its Subsidiaries is a party or by which any of them is bound
obligating the Company or any of its Subsidiaries to issue, deliver or sell or
create, or cause to be issued, delivered or sold or created, additional shares
of capital stock or other voting securities or Stock Equivalents of the Company
or of any of its Subsidiaries or obligating the Company or any of its
Subsidiaries to issue, grant, extend or enter into any such security, option,
warrant, call, right, commitment, agreement, arrangement or undertaking.

     There are no outstanding  contractual  obligations of the Company or any of
its  Subsidiaries  to  repurchase,  redeem or  otherwise  acquire  any shares of
capital  stock of the  Company or any of its  Subsidiaries  except  pursuant  to
existing employee arrangements described in Item 4.3 of the Company Letter.

     Section 4.4 Authority. The Company has requisite corporate power and
authority to execute and deliver this Agreement and, subject to approval of this
Agreement and the Merger by the holders of a majority of the outstanding shares
of the Company Class A Common Stock (the "Company Stockholder Approval") (if
required), to consummate the transactions contemplated hereby. The execution,
delivery and performance of this Agreement by the Company and the consummation
by the Company of the Merger and of the other transactions contemplated hereby
have been duly authorized by all necessary corporate action on the part of the
Company, and no other corporate proceedings on the part of the Company or its
Board of Directors are necessary to authorize or approve this Agreement or to
consummate the transactions contemplated hereby, other than the Company
Stockholder Approval (if required). This Agreement has been duly executed and
delivered by the Company and (assuming the valid authorization, execution and
delivery of this Agreement by Parent and Sub) constitutes the valid and binding
obligation of the Company enforceable against the Company in accordance with its
terms, except that such enforceability (i) may be limited by bankruptcy,
insolvency, moratorium or other similar laws affecting or relating to the
enforcement of creditors' rights generally and (ii) is subject to general
principles of equity.
     
     Section 4.5 Consents and Approvals; No Violations. Except as set forth in
Item 4.5 of the Company Letter, except for filings, permits, authorizations,
consents and approvals as may be required under, and other applicable
requirements of, the Exchange Act, the HSR Act, the DGCL, state takeover laws
and foreign and supranational laws relating to antitrust and anticompetition
clearances, neither the execution, delivery or performance of this Agreement by
the Company nor the consummation by the Company of the transactions contemplated
hereby will (i) conflict with or result in any breach of any provision of the
Restated Certificate of Incorporation or By-laws of the Company or of the
similar organizational documents of any of its Subsidiaries, (ii) require any
filing with, or permit, authorization, consent or approval of, any Governmental
Entity (except where the failure to obtain such permits, authorizations,
consents or approvals or to make such filings would not reasonably be expected
to have a Material Adverse Effect on the Company or prevent or 

                                       10
<PAGE>


materially delay the consummation of the Offer and/or the Merger), (iii) result
in a violation or breach of, or constitute (with or without due notice or lapse
of time or both) a default (or give rise to any right of termination, amendment,
cancellation or acceleration) under, any of the terms, conditions or provisions
of any note, bond, mortgage, indenture, lease, license, contract, agreement or
other instrument or obligation to which the Company or any of its Subsidiaries
is a party or by which any of them or any of their properties or assets may be
bound or (iv) violate any order, writ, injunction, decree, statute, rule or
regulation applicable to the Company, any of its Subsidiaries or any of their
properties or assets, except in the case of clauses (iii) or (iv) for matters
that would not reasonably be expected to have a Material Adverse Effect on the
Company or prevent or materially delay the consummation of the Offer and/or the
Merger; provided, however, that the contracts, agreements and other instruments
and obligations to which clause (iii) refers shall for purposes of the second
parenthetical phrase of clause (iii) not include (A) any employee benefit plan,
policy, arrangement or understanding (whether or not in writing) providing
benefits to any current or former employee, officer or director of the Company
or any of its Subsidiaries or (B) any employment, consulting, bonus,
non-competition, severance or termination agreement between the Company or any
of its Subsidiaries and any current or former employee, officer or director of
the Company or any of its Subsidiaries.

     Section 4.6 SEC Documents and Other Reports. The Company has filed with the
SEC all documents required to be filed by it since August 31, 1995 under the
Securities Act or the Exchange Act (the "Company SEC Documents"). As of their
respective filing dates, the Company SEC Documents complied in all material
respects with the requirements of the Securities Act or the Exchange Act, as the
case may be, each as in effect on the date so filed, and at the time filed with
the SEC none of the Company SEC Documents including the financial statements of
the Company and the notes thereto contained any untrue statement of a material
fact or omitted to state a material fact required to be stated therein or
necessary to make the statements therein, in light of the circumstances under
which they were made, not misleading. The financial statements of the Company
(including the notes thereto) included in the Company SEC Documents comply as of
their respective dates as to form in all material respects with the then
applicable accounting requirements and the published rules and regulations of
the SEC with respect thereto, have been prepared in accordance with generally
accepted accounting principles (except in the case of the unaudited statements,
as permitted by Form 10-Q under the Exchange Act) applied on a consistent basis
during the periods involved (except as may be indicated therein or in the notes
thereto) and fairly present the consolidated financial position of the Company
and its consolidated Subsidiaries as at the dates thereof and the consolidated
results of their operations and their consolidated cash flows for the periods
then ended (subject, in the case of unaudited statements, to normal year-end
audit adjustments and to any other adjustments described therein none of which
were or will be material in amount or effect).

     Section 4.7 Absence of Material Adverse Change. Except as disclosed in Item
4.7 of the Company Letter or in the documents filed by the Company with the SEC
and publicly available prior to the date of this Agreement (the "Company Filed
SEC Documents"), since August 31, 1997 the Company and its Subsidiaries have
conducted their respective businesses in all material respects only in the
ordinary course, and there has not been (i) any Material Adverse Change with
respect to the Company, (ii) any declaration, setting aside or payment of any
dividend or other distribution with respect to its capital stock (other than
regular quarterly cash dividends not in excess of $.035 per 


                                       11
<PAGE>


Share) or any redemption, purchase or other acquisition of any of its capital
stock, (iii) any split, combination or reclassification of any of its capital
stock or any issuance or the authorization of any issuance of any other
securities in respect of, in lieu of or in substitution for shares of its
capital stock, (iv) any change in accounting methods, principles or practices by
the Company materially affecting its assets, liabilities, business or results of
operations, (v) any grant by the Company or its Subsidiaries to any officer of
the Company or its Subsidiaries of any increase in compensation, except as was
required under employment agreements in effect as of August 31, 1997 or as were
made in the ordinary course of business consistent with past practice, (vi) any
grant by the Company or its Subsidiaries to any such officer of any increase in
severance or termination pay, except as part of a standard employment package to
any person promoted or hired, or as was required under employment, severance or
termination agreements in effect as of August 31, 1997, (vii) any revaluation by
the Company of any of its material assets or (viii) any other action or omission
of the type described in subparagraphs (a), (c), (f), (g), (h), (k), (l), (m),
(n) or (o) of Section 6.1 or, except as previously disclosed to Parent in
writing, subparagraphs (b), (e) or (j) of Section 6.1. The representations made
in clauses (v) and (vi) of this Section 4.7 shall, to the extent made with
respect to officers of the Company's foreign Subsidiaries, be deemed to be made
to the knowledge of the executive officers of the Company.

     Section 4.8 Information Supplied. None of the information supplied or to be
supplied by the Company specifically for inclusion or incorporation by reference
in (i) the Offer Documents, (ii) the Schedule 14D-9, (iii) the information to be
filed by the Company in connection with the Offer pursuant to Rule 14f-1
promulgated under the Exchange Act (the "Information Statement") or (iv) the
proxy statement (together with any amendments or supplements thereto, the "Proxy
Statement") relating to the Stockholders Meeting, will, in the case of the Offer
Documents, the Schedule 14D-9 and the Information Statement, at the respective
times the Offer Documents, the Schedule 14D-9 and the Information Statement are
filed with the SEC or first published, sent or given to the Company's
stockholders, or, in the case of the Proxy Statement, at the time the Proxy
Statement is first mailed to the Company's stockholders or at the time of the
Stockholders Meeting, contain any untrue statement of a material fact or omit to
state any material fact required to be stated therein or necessary in order to
make the statements therein, in light of the circumstances under which they are
made, not misleading or necessary to correct any statement in any earlier
communication with respect to the solicitation of proxies for the Stockholders
Meeting which has become false or misleading. The Schedule 14D-9, the
Information Statement and the Proxy Statement will comply as to form in all
material respects with the requirements of the Exchange Act and the rules and
regulations thereunder, except that no representation or warranty is made by the
Company with respect to statements made or incorporated by reference therein
based on information supplied by Parent or Sub specifically for inclusion or
incorporation by reference therein.

     Section 4.9 Compliance with Laws. The businesses of the Company and its
Subsidiaries are not being conducted in violation of any law, ordinance or
regulation of any Governmental Entity, except for possible violations that would
not reasonably be expected to have a Material Adverse Effect on the Company or
prevent or materially delay the consummation of the Offer and/or the Merger.
Except as disclosed in Item 4.9 of the Company Letter, the Company and its
Subsidiaries hold all permits, licenses, variances, exemptions, orders and
approvals of all Governmental Entities necessary for the lawful conduct of their
respective businesses as presently conducted (the "Company 


                                       12
<PAGE>


Permits"), except for failures to hold such permits, licenses, variances,
exemptions, orders and approvals that would not reasonably be expected to have a
Material Adverse Effect on the Company or prevent or materially delay the
consummation of the Offer and/or the Merger. The Company and its Subsidiaries
are in compliance with the terms of the Company Permits, except where the
failure to so comply would not reasonably be expected to have a Material Adverse
Effect on the Company or prevent or materially delay the consummation of the
Offer and/or the Merger. Except as disclosed in Item 4.9 of the Company Letter,
to the knowledge of the Company, except as set forth in the Company Filed SEC
Documents, as of the date of this Agreement, no investigation or review by any
Governmental Entity with respect to the Company or any of its Subsidiaries is
pending or threatened, other than, in each case, those the outcome of which
would not be reasonably expected to have a Material Adverse Effect on the
Company or prevent or materially delay the consummation of the Offer and/or the
Merger. All representations made in this Section 4.9 shall, to the extent made
with respect to any foreign law, ordinance, regulation or foreign Company
Permit, be deemed to be made to the knowledge of the Company.

     Section 4.10 Tax Matters. The Company and each of its Subsidiaries has
timely filed (after taking into account any extensions to file) all Tax Returns
required to be filed by them either on a separate or combined or consolidated
basis, except where the failure to timely file would not reasonably be expected
to have a Material Adverse Effect on the Company. All such Tax Returns are
complete and accurate, except where the failure to be complete or accurate would
not reasonably be expected to have a Material Adverse Effect on the Company.
Each of the Company and its Subsidiaries has paid or caused to be paid all Taxes
as shown as due on such Tax Returns and all material Taxes for which no return
was filed, except where the failure to do so would not reasonably be expected to
have a Material Adverse Effect on the Company. No deficiencies for any Taxes
have been asserted, proposed or assessed against the Company or any of its
Subsidiaries that have not been paid or otherwise settled or are not otherwise
being challenged under appropriate procedures, except for deficiencies the
assertion, proposing or assessment of which would not reasonably be expected to
have a Material Adverse Effect on the Company, and no requests for waivers of
the time to assess any such Taxes are pending.

     Section 4.11 Liabilities. Except as disclosed in Item 4.11 of the Company
Letter or as set forth in the Company Filed SEC Documents, to the knowledge of
the Company, neither the Company nor any of its Subsidiaries has any liabilities
or obligations of any nature (whether accrued, absolute, contingent or
otherwise) required by generally accepted accounting principles to be set forth
on a consolidated balance sheet of the Company and its Subsidiaries or in the
notes thereto, other than liabilities and obligations incurred in the ordinary
course of business since August 31, 1997 and liabilities which would not,
individually or in the aggregate, reasonably be expected to have a Material
Adverse Effect on the Company.

     Section 4.12 Benefit Plans; Employees and Employment Practices. (a) With
respect to each material bonus, pension, profit sharing, deferred compensation,
incentive compensation, stock ownership, stock purchase, stock option, phantom
stock, retirement, vacation, severance, disability, death benefit,
hospitalization, medical, fringe benefit, employee stock purchase, stock
appreciation, restricted stock or other material employee benefit plan, policy,
arrangement or understanding (whether or not in writing) providing benefits to
any current or former employee, officer or director 



                                       13
<PAGE>



of, and maintained or contributed to as of the date of this Agreement by, the
Company or any of its Subsidiaries, including but not limited to the health care
plan (the "EMWA Plan") operated by the Employees' Mutual Welfare Association
(the "EMWA"), and excluding any Employee Agreements (as defined below)
(collectively, excluding such Employee Agreements, the "Benefit Plans"), other
than any such plan, policy, arrangement or understanding under which most of the
current or former employees, officers or directors of the Company or any of its
Subsidiaries provided benefits thereunder are provided benefits with respect to
employment outside of the United States of America (the Benefit Plans, excluding
those under which most of the current or former employees, officers or directors
of the Company or any of its Subsidiaries provided benefits thereunder are
provided benefits with respect to employment outside of the United States of
America, collectively the "U.S. Benefit Plans"), such U.S. Benefit Plan has not
since August 31, 1997 and prior to the date of this Agreement been adopted or
amended in any material respect by the Company or any of its Subsidiaries except
as disclosed in the Company Filed SEC Documents or Item 4.12(a) of the Company
Letter or as required by law. The Company has with respect to each material
employment, consulting, bonus, non-competition, severance and termination
agreement in effect as of the date of this Agreement between the Company or any
of its Subsidiaries other than any foreign Subsidiary and any current or former
employee, officer or director of the Company or any of its Subsidiaries other
than any foreign Subsidiary (collectively, the "Employee Agreements") disclosed
such agreement in Item 4.12(a) of the Company Letter or in the Company filed SEC
Documents or made available to Parent a copy of such agreement.

     (b) Item 4.12(b) of the Company Letter contains a list of all U.S. Benefit
Plans which are "employee pension benefit plans" (as defined in Section 3(2) of
ERISA) or "employee welfare benefit plans" (as defined in Section 3(1) of ERISA)
(collectively, the "ERISA Benefit Plans"). With respect to each U.S. Benefit
Plan, except as disclosed in Item 4.12(b) of the Company Letter, the Company has
made available to Parent true, complete and correct copies, where applicable and
to the extent that they exist as of the date of this Agreement, of (i) the
current plan document (including all amendments adopted on or before the date
hereof that are still applicable) (or, in the case of any unwritten U.S. Benefit
Plan, a description thereof), (ii) the most recent annual report on Form 5500
filed with the Internal Revenue Service, (iii) the most recent actuarial report,
(iv) the most recent summary plan description and (v) the most recent
determination letter issued by the Internal Revenue Service. The Company has
made available to Parent or filed in the Company Filed SEC Documents a true,
complete and correct copy of each Employee Agreement as in effect as of the date
of the Agreement. The Company has made available to Parent a true, complete and
correct copy of the three employment agreements as in effect as of the date
hereof pursuant to which the most senior officer in each of the Company's three
foreign Subsidiaries located in Argentina, Italy and Canada are employed by such
foreign Subsidiaries.

     (c) Except as disclosed in Item 4.12(c) of the Company Letter, none of the
Company or any of its Subsidiaries, or any other person or entity that together
with the Company is treated as a single employer under Section 414 of the Code
(an "ERISA Affiliate"), has, with respect to any ERISA Benefit Plan, or any
other plan subject to the minimum funding requirements of Section 302 of ERISA,
incurred or could reasonably be expected to incur (i) any material liability
under Title IV of ERISA or to the Pension Benefit Guaranty Corporation (other
than for contributions and premiums in the ordinary course) that has not been
fully paid as of the date hereof , (ii) any accumulated funding 


                                       14
<PAGE>


deficiency under Section 302 of ERISA or Section 412 of the Code of a material
amount that has not been fully paid as of the date hereof, or (iii) any
requirement under ERISA or the Code to post security of a material amount under
such plan that is still outstanding as of the date hereof. To the Company's
knowledge, none of the Company, any of its Subsidiaries, any officer of the
Company or any of its Subsidiaries or any of the ERISA Benefit Plans, or any of
the other plans maintained by the Company or any Subsidiary of the Company and
subject to Section 406 of ERISA (an "Other ERISA Benefit Plan"), has on or
before the date of this Agreement engaged in a "prohibited transaction" (as
defined in Section 406 of ERISA or Section 4975 of the Code) with respect to any
ERISA Benefit Plan or Other ERISA Benefit Plan that could reasonably be expected
to subject the Company, any of its Subsidiaries or any officer of the Company or
any of its Subsidiaries to any material tax on prohibited transactions imposed
by Section 4975 of the Code or to any material liability under Section 502(i) or
(l) of ERISA. Except as disclosed in Item 4.12(c) of the Company Letter, none of
the Company, its Subsidiaries or ERISA Affiliates has at any time during the
five-year period preceding the date hereof contributed to any ERISA Benefit Plan
that is a "multiemployer plan" (as defined in Section 3(37) of ERISA) except for
any such plan maintained outside of the United States.

     (d) Except as disclosed in Item 4.12(d) of the Company Letter, as of the
date of this Agreement there is no pending dispute, arbitration, claim, suit or
grievance involving a Benefit Plan (other than routine claims for benefits
payable under any such Benefit Plan) that would reasonably be expected to give
rise to a material liability of the Company or any Subsidiary of the Company.
All material contributions already required to be made to any Benefit Plan have
been made. Notwithstanding the foregoing, to the extent the representations and
warranties set forth in this paragraph are provided with respect to a Benefit
Plan that is not a U.S. Benefit Plan, they are provided only to the knowledge of
the Company.

     (e) Except as disclosed in Item 4.12(e) of the Company Letter, as of the
date of this Agreement there are no material controversies, strikes, work
stoppages or disputes pending between the Company or any of its Subsidiaries and
any current or former employees, and, to the Company's knowledge, no material
organizational effort by any labor union or other collective bargaining unit
currently is under way with respect to any employee. None of the Company or any
its Subsidiaries other than a foreign Subsidiary, and to the Company's knowledge
no foreign Subsidiary of the Company, is a party to a collective bargaining
agreement.

     (f) To the knowledge of the Company, all Benefit Plans that are not U.S.
Benefit Plans and are subject to the laws of any jurisdiction outside of the
United States have been maintained in material compliance with all applicable
requirements and, if they are intended to be funded or book reserved, are
appropriately funded or book reserved.

     (g) Except as set forth in the Company Filed SEC Documents, as expressly
contemplated by this Agreement, or with respect to U.S. Benefit Plans and
Employee Agreements copies of which have been made available by the Company to
Parent, neither the execution and delivery of this Agreement, nor the
consummation of the transactions contemplated hereby, will (either alone or in
conjunction with any other event) result in, cause the accelerated vesting or
payment of, or increase the amount or value of, any payment or benefit to any
employee, officer or director of the Company or any of its Subsidiaries under
any U.S. Benefit Plan or Employment Agreement. No executive 


                                       15
<PAGE>


officer of the Company or of any Subsidiary of the Company that is not a foreign
Subsidiary is aware of any provision in an employment agreement to which a
foreign Subsidiary of the Company is a party, or in a plan maintained by a
foreign Subsidiary of the Company, pursuant to which the execution and delivery
of this Agreement, or the consummation of the transactions contemplated hereby,
will (either alone or in conjunction with any other event) result in, cause the
accelerated vesting or payment of, or increase the amount or value of, any
material payment or benefit to any employee, officer or director of such foreign
Subsidiary except for any such plan or agreement a copy of which has been made
available by the Company to the Parent. The aggregate amount of the after-tax
cost to the Company and its Subsidiaries of "parachute payments" within the
meaning of Section 280G of the Code that could become payable to individuals who
would be subject to the excise tax on "excess parachute payments" as a result of
receiving such parachute payments is not more than $50,000,000 (assuming that
such aggregate amount is calculated based upon the same assumptions as to
"Change-in-Control Date," stock price, discount rate, individual income tax rate
and corporate tax rates as were used to prepare the Towers Perrin
Change-in-Control Analysis revised as of May 8, 1998 that has been delivered to
Parent by the Company, to determine the amount shown under the column heading
"Gross-Up/After-Tax Cost to Company" in such Analysis).

     (h) The Internal Revenue Service has issued a favorable determination
letter with respect to each Benefit Plan that is intended to be qualified under
Section 401(a) of the Code (although such letter does not pertain to the Code as
in effect as of the date hereof), and, except as disclosed in Item 4.12(h) of
the Company Letter, to the knowledge of the Company as of the date of this
Agreement, such qualified status is not reasonably likely to be adversely
affected by any circumstances that exist, or events that have occurred, on or
prior to the date of this Agreement.

     Section 4.13 Litigation. Except as disclosed in Item 4.13 of the Company
Letter or in the Company Filed SEC Documents, as of the date of this Agreement,
there is no suit, action, proceeding or investigation pending or to the
knowledge of the Company threatened against the Company or any of its
Subsidiaries that would reasonably be expected to have a Material Adverse Effect
on the Company or prevent or materially delay the consummation of the Offer
and/or the Merger. Except as disclosed in Item 4.13 of the Company Letter or in
the Company Filed SEC Documents, neither the Company nor any of its Subsidiaries
is subject to any outstanding judgment, order, writ, injunction or decree that
would reasonably be expected to have a Material Adverse Effect on the Company or
prevent or materially delay the consummation of the Offer and/or the Merger.

     Section 4.14 Environmental Matters. Except as set forth in the Company
Filed SEC Documents or in Item 4.14 of the Company Letter, neither the Company
nor any of its Subsidiaries has (i) any knowledge that the Company or any of its
Subsidiaries (or their predecessors) has stored, released, disposed or arranged
for the disposal of any Hazardous Substances on, under or at any of the
Company's or any of its Subsidiaries' properties or any other properties, or
exposed any employee or other individual to any Hazardous Substance other than
in a manner that would not, in all such cases taken individually or in the
aggregate, reasonably be expected to result in a Material Adverse Effect on the
Company, (ii) any knowledge of the presence of any Hazardous Substance on, under
or at any of the Company's or any of its Subsidiaries' owned or leased
properties other than that which would not reasonably be expected to result in a
Material Adverse Effect on the Company, (iii) received any written notice or has
knowledge of any facts which could reasonably be expected 



                                       16
<PAGE>


to give rise to such notice (A) of any actual or alleged violation of or
liability (whether accrued, contingent, known or unknown) arising under any
Environmental Law that has not been resolved or settled with the relevant
Governmental Entity or third party, (B) of the threat, institution or pendency
of any suit, action, claim, proceeding or investigation by any Governmental
Entity or any third party in connection with any such violation or liability,
(C) by any Governmental Entity requiring response to or remediation of Hazardous
Substances at or arising from any of the Company's or any of its Subsidiaries'
properties or any other properties, (D) alleging noncompliance by the Company or
any of its Subsidiaries with the terms of any permit, license, approval or other
authorization required under any Environmental Law in any manner reasonably
likely to require material expenditures or to result in material liability that
has not been resolved or settled or in the revocation or denial of a permit or
(E) demanding payment for, response to or remediation of Hazardous Substances at
or arising from any of the Company's or any of its Subsidiaries' properties or
any other properties, (iv) any knowledge of the storage of PCBs on the Company's
or any of its Subsidiaries' owned or leased properties, (v) any knowledge of the
existence of underground storage tanks on the Company's or any of its
Subsidiaries' owned or leased properties located within the United States or
(vi) any knowledge of the existence of asbestos-containing material in any of
the buildings on the Company's or any of its Subsidiaries' owned or leased
properties located within the United States, except in each case for the notices
set forth in Item 4.14 of the Company Letter and except in each case for notices
that would not, individually or in the aggregate, reasonably be expected to
result in a Material Adverse Effect on the Company.

     Section 4.15 Charter Provisions. The action of the Board of Directors of
the Company in approving the Offer (including the purchase of Shares pursuant to
the Offer), the Merger, this Agreement, the Stockholders Agreement and the
transactions contemplated by this Agreement and the Stockholders Agreement, is
sufficient to render (i) Section 203 of the DGCL, (ii) Article EIGHTH of the
Company's Restated Certificate of Incorporation and (iii) Article 11 of the
Investment Agreement irrevocably inapplicable to the Offer, the Merger, this
Agreement and the Stockholders Agreement, the transactions contemplated by this
Agreement and/or the Stockholders Agreement and any other transaction (except a
transaction in which Parent acquires beneficial ownership of Shares other than
pursuant to the Merger) between Parent and any of its affiliates on the one
hand, and the Company and any of its affiliates, on the other hand, consummated
after the date that Sub acquires Shares pursuant to the Offer that could be
defined as a "Business Combination" under Section 203 of the DGCL or Article
EIGHTH of the Company's Restated Certificate of Incorporation. The Board of
Directors has, in conjunction with the matters contemplated by this Agreement,
considered all of the factors required by Article TENTH of the Company's
Restated Certificate of Incorporation.

     Section 4.16 Intellectual Property. (a) Except as set forth in the Company
Filed SEC Documents or in Item 4.16 of the Company Letter, the Company and its
Subsidiaries own, or are validly licensed or otherwise have the right to use or
practice, all Intellectual Property Rights that are material to the conduct of
the business of the Company and its Subsidiaries taken as a whole, free and
clear of all Liens (except with respect to recombinant DNA technology, for
failures to own or possess the rights to freely use or practice such technology
that would not, individually or in the aggregate, reasonably be expected to have
a material adverse effect on the business, properties, assets, financial
condition, results of operations or prospects of the Company and its
Subsidiaries, taken as a whole).


                                       17
<PAGE>


Except as set forth in the Company Filed SEC Documents or in Item 4.16 of the
Company Letter, no claims are pending or to the knowledge of the Company
threatened that the Company or any of its Subsidiaries is infringing or
otherwise adversely affecting the rights of any person with regard to any
Intellectual Property Right so as to materially adversely affect the Company's
ability to use or practice any of its material Intellectual Property Rights. To
the knowledge of the Company, except as set forth in the Company Filed SEC
Documents or in Item 4.16 of the Company Letter, no person is infringing the
rights of the Company or any of its Subsidiaries with respect to any material
Intellectual Property Right.

     (b) Except as set forth in Item 4.16 of the Company Letter, (i) the Company
owns and possesses all right, title and interest in and to, or possesses the
valid right to use, all germplasm and all recombinant DNA technology used in the
conduct of the Company's business (except with respect to recombinant DNA
technology, for failures to own or possess the rights to freely use or practice
such technology that would not, individually or in the aggregate, reasonably be
expected to have a material adverse effect on the business, properties, assets,
financial condition, results of operations or prospects of the Company and its
Subsidiaries, taken as a whole); and (ii) the Company has not received any
notice of, and the Company has no knowledge of any potential claim of any,
infringement of any patent, certificate of plant variety protection or other
intellectual property right or misappropriation from any third party with
respect to any such technology or right.

     (c) Notwithstanding the foregoing, the representations and warranties
contained in this Section 4.16 shall not be untrue or incorrect as a result of,
or otherwise be affected by, the issuance to any Person of any patent after the
date of this Agreement.

     Section 4.17 Brokers. No broker, investment banker, financial advisor or
other person, other than Merrill Lynch, the fees and expenses of which will be
paid by the Company (and are reflected in an agreement between Merrill Lynch and
the Company, a complete copy of which has been furnished to Parent), is entitled
to any broker's, finder's, financial advisor's or other similar fee or
commission in connection with the transactions contemplated by this Agreement
based upon arrangements made by or on behalf of the Company.

     Section 4.18 Contracts; Indebtedness. Except as disclosed in the Company
Filed SEC Documents or as listed under Item 4.18 or other Items of the Company
Letter, there are no contracts or agreements that are material to the business,
properties, assets, financial condition or results of operations of the Company
and its Subsidiaries taken as a whole; provided, however, that such contracts
and agreements shall not include (i) any employee benefit plan, policy,
arrangement or understanding (whether oral or written) providing benefits to any
current or former employee, officer or director of the Company or any of its
Subsidiaries or (ii) any employment, consulting, bonus, non-competition,
severance or termination agreement between the Company or any of its
Subsidiaries and any current or former employee, officer or director of the
Company or any of its Subsidiaries. Neither the Company nor any of its
Subsidiaries is in violation of or in default under (nor does there exist any
condition which upon the passage of time or the giving of notice would cause
such a violation of or default under) any loan or credit agreement, note, bond,
mortgage, indenture, lease, permit, concession, franchise, license or any other
contract, agreement, arrangement or understanding, to which it is a party or by
which it or any of its properties or assets is bound, except 


                                       18
<PAGE>


for violations or defaults that could not reasonably be expected to result in a
Material Adverse Effect on the Company.


          ARTICLE V - REPRESENTATIONS AND WARRANTIES OF PARENT AND SUB

         Parent and Sub represent and warrant to the Company as follows:

     Section 5.1 Organization. Each of Parent and Sub is a corporation duly
organized, validly existing and in good standing under the laws of the
jurisdiction of its incorporation and has requisite corporate power and
authority to carry on its business as now being conducted.

     Section 5.2 Authority. Parent and Sub have the requisite corporate power
and authority to execute and deliver this Agreement and to consummate the
transactions contemplated hereby. The execution, delivery and performance of
this Agreement by Parent and Sub, and the consummation by Parent and Sub of the
Merger and of the other transactions contemplated hereby have been duly
authorized by all necessary corporate action on the part of Parent and Sub, and
no other corporate proceedings on the part of Parent or Sub or their respective
Boards of Directors are necessary to authorize or approve this Agreement or to
consummate the transactions contemplated hereby. This Agreement has been duly
executed and delivered by Parent and Sub and (assuming the valid authorization,
execution and delivery of this Agreement by the Company) constitutes the valid
and binding obligation of each of Parent and Sub enforceable against each of
them in accordance with its terms, except that such enforceability (i) may be
limited by bankruptcy, insolvency, moratorium or other similar laws affecting or
relating to the enforcement of creditors' rights generally and (ii) is subject
to general principles of equity.

     Section 5.3 Consents and Approvals; No Violations. Except as set forth in
Item 5.3 of the Parent Letter, except for filings, permits, authorizations,
consents and approvals as may be required under, and other applicable
requirements of, the Exchange Act, the HSR Act, the DGCL, state takeover laws
and foreign and supranational laws relating to antitrust and anticompetition
clearances, neither the execution, delivery or performance of this Agreement by
Parent and Sub nor the consummation by Parent and Sub of the transactions
contemplated hereby will (i) conflict with or result in any breach of any
provision of the respective certificate of incorporation or By-laws of Parent
and Sub, (ii) require any filing with, or permit, authorization, consent or
approval of, any Governmental Entity (except where the failure to obtain such
permits, authorizations, consents or approvals or to make such filings would not
reasonably be expected to have a Material Adverse Effect on Parent or prevent or
materially delay the consummation of the Offer and/or the Merger), (iii) result
in a violation or breach of, or constitute (with or without due notice or lapse
of time or both) a default (or give rise to any right of termination, amendment,
cancellation or acceleration) under, any of the terms, conditions or provisions
of any note, bond, mortgage, indenture, license, lease, contract, agreement or
other instrument or obligation to which Parent or any of its Subsidiaries is a
party or by which any of them or any of their properties or assets may be bound
or (iv) violate any order, writ, injunction, decree, statute, rule or regulation
applicable to Parent, any of its Subsidiaries or any of their properties or
assets, except in the case of clauses (iii) or (iv) for violations, 


                                       19
<PAGE>


breaches or defaults that would not reasonably be expected to have a Material
Adverse Effect on Parent or prevent or materially delay the consummation of the
Offer and/or the Merger.

     Section 5.4 Information Supplied. None of the information supplied or to be
supplied by Parent or Sub specifically for inclusion or incorporation by
reference in (i) the Offer Documents, (ii) the Schedule 14D-9, (iii) the
Information Statement or (iv) the Proxy Statement will, in the case of the Offer
Documents, the Schedule 14D-9 and the Information Statement, at the respective
times the Offer Documents, the Schedule 14D-9 and the Information Statement are
filed with the SEC or first published, sent or given to the Company's
stockholders, or, in the case of the Proxy Statement, at the time the Proxy
Statement is first mailed to the Company's stockholders or at the time of the
Stockholders Meeting, contain any untrue statement of a material fact or omit to
state any material fact required to be stated therein or necessary in order to
make the statements therein, in light of the circumstances under which they are
made, not misleading or necessary to correct any statement in any earlier
communication with respect to the solicitation of proxies for the Stockholders
Meeting which has become false or misleading, except that no representation or
warranty is made by Parent or Sub in connection with any of the foregoing with
respect to statements made or incorporated by reference therein based on
information supplied by the Company or any of its representatives specifically
for inclusion or incorporation by reference therein. The Offer Documents will
comply as to form in all material respects with the requirements of the Exchange
Act and the rules and regulations thereunder, except that no representation or
warranty is made by Parent or Sub in connection with any of the foregoing with
respect to statements made or incorporated by reference therein based on
information supplied by the Company or any of its representatives specifically
for inclusion or incorporation by reference therein.

     Section 5.5 Interim Operations of Sub. Sub was formed solely for the
purpose of engaging in the transactions contemplated hereby, has engaged in no
other business activities and has conducted its operations only as contemplated
hereby.

     Section 5.6 Brokers. No broker, investment banker, financial advisor or
other person, other than BancAmerica Robertson Stephens and Goldman, Sachs &
Co., the fees and expenses of which will be paid by Parent, is entitled to any
broker's, finder's, financial advisor's or other similar fee or commission in
connection with the transactions contemplated by this Agreement based upon
arrangements made by or on behalf of Parent or Sub.

     Section 5.7 Financing. Parent has or will have, and shall provide Sub with,
the funds necessary to consummate the Offer and the Merger and the transactions
contemplated hereby in accordance with the terms hereof.


             ARTICLE VI - COVENANTS RELATING TO CONDUCT OF BUSINESS

     Section 6.1 Conduct of Business by the Company Pending the Merger. During
the period from the date of this Agreement until the earlier of the Effective
Time or such time as Parent's designees shall constitute a majority of the Board
of Directors of the Company, the Company shall, and shall cause each of its
Subsidiaries to, in all material respects, except as contemplated by this


                                       20
<PAGE>


Agreement, carry on its business in the ordinary course as currently conducted
and, to the extent consistent therewith, with no less diligence and effort than
would be applied in the absence of this Agreement, seek to preserve intact their
current business organizations, keep available the services of their current
officers and employees and preserve their relationships with customers,
suppliers and others having business dealings with them to the end that goodwill
and ongoing businesses shall be unimpaired at the Effective Time. Without
limiting the generality of the foregoing, and except as otherwise contemplated
by this Agreement (including, without limitation, as permitted or required by
Section 7.16), during such period, the Company shall not, and shall not permit
any of its Subsidiaries to, without the prior written consent of Parent (which
consent shall not be unreasonably withheld or delayed):

     (a) (i) declare, set aside or pay any dividends on, or make any other
distributions in respect of, any of its capital stock or otherwise make any
payment to stockholders in their capacity as such, other than dividends on
Shares to be declared and paid only at the customary times at a quarterly rate
not in excess of $0.035 per Share, except for dividends by a wholly-owned
domestic Subsidiary of the Company to its parent, (ii) split, combine or
reclassify any of its capital stock or issue or authorize the issuance of any
other securities in respect of, in lieu of or in substitution for shares of its
capital stock or (iii) redeem, purchase or otherwise acquire any of its
securities;

     (b) issue, deliver, sell, pledge or otherwise encumber any shares of its
capital stock, any other voting securities or any securities or rights
convertible into, exchangeable for, or evidencing the right to subscribe for, or
any rights, warrants, options or any other agreements of any character to
acquire, any such shares, voting securities or convertible or exchangeable
securities or rights, or securities or rights evidencing the right to subscribe,
other than (i) the issuance, in the ordinary course, to new employees or
promoted employees, of options to purchase not more than an aggregate of 40,000
Shares (as described in Item 6.1 of the Company Letter) or the issuance of
Shares pursuant to options outstanding under existing Company Stock Plans, (ii)
the issuance of shares of Company Class B Common Stock in exchange for shares of
Company Class A Common Stock in accordance with the Company's Restated
Certificate of Incorporation, (iii) the issuance of Shares upon exercise of
rights outstanding on the date of this Agreement (including, without limitation,
under the Investment Agreement) and (iv) the issuance of Shares pursuant to the
Company's Savings and Investment Plan, in accordance with its terms;

     (c) amend its Restated Certificate of Incorporation or By-laws or other
similar organizational documents;

     (d) acquire, or agree to acquire, in a single transaction or in a series of
related transactions, any business or assets (other than materials and supplies
purchased in the ordinary course, consistent with past practice), other than
transactions which involve assets having a purchase price not in excess of
$5,000,000 individually;

     (e) make or agree to make any new capital expenditure in excess of
$1,000,000 other than expenditures contemplated by the Company's capital budget
for fiscal 1998 or fiscal 1999 as previously provided to Parent in writing;


                                       21
<PAGE>


     (f) sell, lease, encumber or otherwise dispose of, or agree to sell, lease,
encumber or otherwise dispose of, any of its assets, other than (i) sales of
inventory in the ordinary course of business and (ii) transactions which involve
assets having a current value not in excess of $5,000,000 individually or
$20,000,000 in the aggregate; provided that notwithstanding this Section 6.1(f),
neither the Company nor any of its Subsidiaries shall sell, lease, encumber or
otherwise dispose of, or agree to sell, lease, encumber or otherwise dispose of,
any germplasm, recombinant DNA technology or Intellectual Property Rights,
except with respect to Intellectual Property Rights as specifically permitted by
Section 6.1(j);

     (g) except as disclosed in Item 4.12(a) of the Company Letter, (i) increase
the salary or wages payable or to become payable to its directors, officers or
employees, except for increases required under employment agreements existing on
the date hereof, and except for increases for officers and employees in the
ordinary course of business, consistent with past practice; (ii) pay or agree to
pay any pension, retirement allowance or employee benefit not required or
contemplated by any existing benefit, severance, pension or employment plans,
agreements or arrangements; or (iii) enter into any employment or severance
agreement with, or establish, adopt, enter into or amend any bonus, profit
sharing, thrift, stock option, restricted stock, pension, retirement, deferred
compensation, employment, termination or severance plan, agreement, policy or
arrangement for the benefit of, any director, officer or employee, except, in
each case, as may be expressly required by the terms of any such plan,
agreement, policy or arrangement or to comply with applicable law;

     (h) except as is required as a result of a change in law or in generally
accepted accounting principles, make any material change in its method of
accounting;

     (i) enter into, modify in any material respect, amend in any material
respect or terminate any material contract or agreement (including without
limitation any contract or agreement which (i) cannot by its terms be terminated
without liability or continuing obligation by the Company on less than one
year's notice or (ii) may require a cash expenditure by the Company in excess of
$5,000,000 in any fiscal year) to which the Company or any of its Subsidiaries
is a party, or waive, release or assign any material rights or claims, in each
case, in any manner adverse to the Company or any of its Subsidiaries and, in
each case, except for (A) customary operational contracts not involving payments
in excess of $5,000,000 individually over the term of such contract, (B) hedging
and similar futures contracts with a term not in excess of one year or which
can, by their terms, be terminated without liability or continuing obligation by
the Company on not more than one year's notice and (C) seed production
contracts, in each of cases (A), (B) and (C) above entered into in the ordinary
course of business consistent with past practice;

     (j) (i) acquire a license or right to use from a third party for
consideration (including without limitation cash, human or other resources or
other assets or commitments, including out-licenses) in excess of $1,000,000 per
year or $10,000,000 over the course of the agreement governing such license or
right, or which by its terms cannot be terminated without liability or continued
obligation by the Company on less than six months' notice or (ii) grant any
license or sublicense other than (v) licenses to contract growers in the
ordinary course of business consistent with past practice, (w) licenses granted
under and in accordance with the Corn Borer-Protected License Agreement dated as
of January 31, 1996 between Parent and the Company, the Glyphosate-Protected
Corn License 


                                       22
<PAGE>


Agreement dated as of January 31, 1996 between Parent and the Company or the
CaMV Promoter License Agreement dated as of January 31, 1996 between Parent and
the Company, in each case, in the ordinary course of business consistent with
past practice (and provided that this Section 6.1 shall not prohibit the
granting by the Company in accordance with such licenses of sublicenses to the
entities described with respect to this Section 6.1(j) in Item 6.1 of the
Company letter), (x) licenses of swine in the ordinary course of business
consistent with past practice, (y) licenses included in "material transfer
agreements" entered into solely for the purposes of research in the ordinary
course of business consistent with past practice, and (z) licenses required to
be granted pursuant to the terms of agreements to which the Company or any of
its Subsidiaries is a party (as such terms are in effect on the date hereof);

     (k) adopt a plan of complete or partial liquidation,  dissolution,  merger,
consolidation,  restructuring,  recapitalization or other  reorganization of the
Company or any of its  Subsidiaries  not  constituting  an  inactive  Subsidiary
(other than the Merger);

     (l) other than in the ordinary course of business consistent with past
practice, incur any indebtedness for borrowed money or guarantee any such
indebtedness or make any loans, advances or capital contributions to, or
investments in, any other person, other than to the Company or any wholly-owned
subsidiary of the Company;

     (m) settle or agree to dismiss any litigation with respect to Intellectual
Property Rights or material litigation with respect to other matters;

     (n) pay, discharge, settle or satisfy any other claims, liabilities or
obligations (absolute, accrued, asserted or unasserted, contingent or
otherwise), other than the payment, discharge, settlement or satisfaction, in
the ordinary course of business consistent with past practice or in accordance
with their terms, of claims, liabilities or obligations (in each case not
related to pending or threatened litigation) reflected or disclosed in the most
recent consolidated financial statements (or the notes thereto) of the Company
included in the Company Filed SEC Documents or incurred since the date of such
financial statements in the ordinary course of business consistent with past
practice;

     (o) enter into any contract, license, agreement or arrangement of any kind
without including confidentiality agreements consistent with past practice; or

     (p) authorize, recommend, propose or announce an intention to do any of the
foregoing, or enter into any contract, agreement, commitment or arrangement to
do any of the foregoing.

     Notwithstanding anything else in this Agreement to the contrary, the
Company and its Subsidiaries may, during the period from the date of this
Agreement until the earlier of the Effective Time or such time as Parent's
designees shall constitute a majority of the Board of Directors of the Company,
(i) sell all or a portion of the Company's business solely relating to the
research and development of swine breeding stock and the marketing of such
hybrid breeding swine and related management services to hog producers in
domestic or international markets, so long as Parent is reasonably satisfied
with the terms and conditions of such sale, and (ii) take any action set forth
in Item 6.1 of the Company Letter.


                                       23
<PAGE>


     Section 6.2 No Solicitation. (a) The Company shall, and shall cause its
executive officers, directors, authorized representatives and authorized agents
to, immediately cease any discussions or negotiations with any parties that may
be ongoing with respect to any Takeover Proposal. The Company shall not, nor
shall it permit any of its Subsidiaries to, nor shall it permit any of its
executive officers, directors, authorized representatives or authorized agents
to, directly or indirectly, (i) solicit, initiate or knowingly encourage
(including by way of furnishing non-public information) any inquiries or the
making of any proposal which constitutes, or may reasonably be expected to lead
to, any Takeover Proposal or (ii) participate in any discussions or negotiations
regarding any Takeover Proposal. For purposes of this Agreement, "Takeover
Proposal" means (x) any inquiry, proposal or offer from any person relating to
any direct or indirect acquisition or purchase of any of the assets of the
Company or its Subsidiaries (other than the purchase of inventory or other
assets in the ordinary course of business) or any of the Shares then
outstanding, any tender offer or exchange offer for any of the Shares then
outstanding, or any merger, consolidation, business combination,
recapitalization, liquidation, dissolution or similar transaction involving the
Company or any of its Subsidiaries, other than the transactions contemplated by
this Agreement or (y) any other transaction the consummation of which could
reasonably be expected to impede, interfere with, prevent or materially delay
the Offer and/or the Merger or which would reasonably be expected to dilute
materially the benefits to Parent of the transactions contemplated by this
Agreement and the Stockholders Agreement. Notwithstanding the foregoing,
proposals solely relating to the sale of all or a portion of the Company's
business relating solely to the research and development of swine breeding stock
and the marketing of such hybrid breeding swine and related management services
to hog producers in domestic or international markets shall not be considered
Takeover Proposals, so long as the terms and conditions of any such proposal
described in this sentence do not have any of the effects described in clause
(y) of the preceding sentence.

     (b) Except as otherwise provided in this Section 6.2, neither the Board of
Directors of the Company nor any committee thereof shall (i) withdraw or modify,
or propose publicly to withdraw or modify, in a manner adverse to Parent, the
approval or recommendation by such Board of Directors or such committee of the
Offer, the Merger or this Agreement (or any transaction contemplated thereby);
provided that, the Board of Directors may, (A) in response to any Takeover
Proposal, suspend such recommendation for a period of up to 24 hours pending its
analysis of such Takeover Proposal or (B) at any time prior to the consummation
of the Offer, modify or withdraw such recommendation, but only if the Board of
Directors of the Company determines in good faith, based on a written opinion of
Morris, Nichols, Arsht & Tunnell, which written opinion shall specifically take
into account the Stockholders Agreement and all the terms thereof, including the
obligations and agreements therein of the Voting Trustees and Registered Holders
with respect to tendering Shares and voting for the Merger and against any
Takeover Proposal other than the Merger (a "Written Opinion"), that it would be
a breach of its fiduciary duties not to so modify or withdraw such
recommendation; provided further that, unless this Agreement shall have been
terminated, any such suspension, modification or withdrawal shall not prevent
Parent and Sub, in its or their discretion, from consummating the Offer and in
any event shall be subject to Section 6.2(e) of this Agreement, (ii) approve or
recommend, or propose publicly to approve or recommend, any Takeover Proposal or
(iii) cause the Company to enter into any letter of intent, agreement in
principle, 


                                       24
<PAGE>

acquisition agreement or other similar agreement (each, an "Acquisition
Agreement") related to any Takeover Proposal.

     (c) In addition to the obligations of the Company contained in paragraphs
(a) and (b) of this Section 6.2, the Company shall immediately advise Parent
orally and in writing of any request for information or of any Takeover
Proposal, the material terms and conditions of such request or Takeover Proposal
and the identity of the person making such request or Takeover Proposal.

     (d) Subject to Section 6.2(e), nothing contained in this Section 6.2 shall
prohibit the Company from taking and disclosing to its stockholders a position
contemplated by Rules 14d-9 and 14e-2 promulgated under the Exchange Act or from
making any disclosure to the Company's stockholders if, in the good faith
judgment of the Board of Directors of the Company, based on a Written Opinion,
such disclosure is required under applicable law.

     (e) Nothing in this Section 6.2 (including any modified or withdrawn
recommendation contemplated by paragraphs (b) or (c) of Section 6.2) shall be
deemed to prevent or impede Parent and Sub, in its or their discretion, from
consummating the Offer, or to limit or affect any of the actions taken by the
Company and described in Section 4.15 of this Agreement. In addition, if Sub
purchases Shares pursuant to the Offer, the Company and its Board of Directors
shall take all actions legally permitted to permit the Merger to occur.

     Section 6.3 Third Party Standstill Agreements. During the period from the
date of this Agreement through the Effective Time, the Company shall enforce and
shall not terminate, amend, modify or waive any standstill or other provision
of, any confidentiality, nonsolicitation or standstill agreement to which the
Company or any of its Subsidiaries is a party (other than any involving Parent),
including, without limitation, any such agreement entered into with any party in
connection with the process conducted by the Company to solicit acquisition
proposals for the Company.

     Section 6.4 Disclosure to Parent; Delivery of Certain Filings. The Company
shall promptly advise Parent orally and in writing if there occurs, to the
knowledge of the Company, any change or event which results in the executive
officers of the Company having a good faith belief that such change or event has
resulted in or is reasonably likely to result in a Material Adverse Effect on
the Company or that such change or event could materially delay the consummation
of the Offer and/or the Merger. The Company shall provide to Parent, and Parent
shall provide to the Company, copies of all filings made by the Company or
Parent, as the case may be, with any Governmental Entity in connection with this
Agreement and the transactions contemplated hereby.


                       ARTICLE VII - ADDITIONAL AGREEMENTS

     Section 7.1 Employee Benefits. (a) Parent shall take all necessary action
so that each person who is an employee of the Company or any of its Subsidiaries
upon the consummation of the Offer (including each such person who is on
vacation, temporary layoff, approved leave of absence, sick leave or short-term
disability) shall be permitted to remain an employee of the Company or the
Surviving Corporation or a Subsidiary of the Company or of the Surviving
Corporation, as the case 


                                       25
<PAGE>


may be, immediately following such time with wages or salary, as applicable, no
less favorable than as in effect immediately preceding such time. Parent shall
take all necessary action so that each person receiving, or but for any waiting
period would be receiving, long-term disability benefits under a plan of the
Company or any of its Subsidiaries upon the consummation of the Offer shall
retain after such time the right to continue or begin receiving such long-term
disability benefits, so long as they remain disabled. Until the first
anniversary of the consummation of the Offer, Parent shall take all necessary
action so that the Company, the Surviving Corporation and their Subsidiaries
maintain for each employee of the Company and its Subsidiaries who is employed
by the Company or the Surviving Corporation or a Subsidiary of the Company or
the Surviving Corporation upon the consummation of the Offer (collectively, the
"Retained Employees") wages and other compensation levels, and benefits
(including without limitation benefits thereunder for the spouses, dependents
and other beneficiaries of Retained Employees, if applicable) of the types
provided under the Benefit Plans, and under all other employee benefit plans,
policies, arrangements and understandings that would be Benefit Plans but for
their not being material (the "Other Benefit Plans"), as in effect as of the
consummation of the Offer which are not and have eligibility requirements that
are not less favorable than those wages and other compensation levels, and
benefits provided under the Benefit Plans and the Other Benefit Plans, as in
effect as of the consummation of the Offer. Parent shall take all necessary
action so that each Retained Employee shall after the consummation of the Offer
continue to be credited with the unused vacation and sick leave credited to such
employee through the consummation of the Offer under the applicable vacation and
sick leave policies of the Company and its Subsidiaries, and Parent shall permit
or cause the Company, the Surviving Corporation and their Subsidiaries to permit
such employees to use such vacation and sick leave. Parent shall take all
necessary action so that, for all purposes under each benefit plan maintained or
otherwise provided by the Company, the Surviving Corporation or any of their
Subsidiaries in which employees or former employees of the Company and its
Subsidiaries or the spouses, dependents or other beneficiaries of such persons
become eligible to participate after the consummation of the Offer, each such
person shall be credited with all years of service to the extent such service
would be taken into account under the Benefit Plan or Other Benefit Plan
providing benefits of a similar type in effect at the consummation of the Offer.

     (b) Parent shall take all necessary action so that neither it, the Company,
the Surviving Corporation, nor any of their Subsidiaries will during the
one-year period commencing with the consummation of the Offer (i) terminate the
employment of any Retained Employee other than for Cause or (ii) relocate the
site of any such person's employment or reassign any such person to a different
location without such person's consent. Following such one-year period,
employment of any of the Retained Employees will be "at will" and may be
terminated at any time for any reason (subject to any legally binding agreement
other than this Agreement, and subject to any applicable laws or collective
bargaining agreement). Except as otherwise specifically provided in Sections 7.1
through 7.6, nothing in this Agreement shall be interpreted as limiting the
power of the Surviving Corporation, Parent, or any of their respective
Subsidiaries to amend or terminate any particular Benefit Plan or any other
particular employee benefit plan, program, agreement or policy or as requiring
the Surviving Corporation to offer to continue (other than as required by its
terms) any written employment contract, provided, however, that no such
termination or amendment may impair the rights of any person with respect to
benefits or any other payments already accrued as of the time of such
termination or amendment without the consent of such person. As used in this
Section 7.1(b), 


                                       26
<PAGE>


"Cause" shall mean the willful failure to substantially perform the duties
reasonably assigned by Parent or its Subsidiaries (including the Surviving
Corporation), as the case may be (other than a failure resulting from
disability), any act of dishonesty, the commission of a felony, or a significant
violation of any statutory or common law duty of loyalty to Parent and its
Subsidiaries (including the Surviving Corporation).

     Section 7.2 Severance Policy and Other Agreements. (a) For a period of not
less than twelve months from the consummation of the Offer, Parent shall
maintain, and shall cause to be maintained by the Company, the Surviving
Corporation and their Subsidiaries, for the benefit of the Retained Employees
the Company's Severance Pay Plan as in effect as of the date hereof.

     (b) Parent shall honor or cause to be honored by the Company, the Surviving
Corporation and their Subsidiaries all Employment Agreements, copies of which
have been made available by the Company to Parent, with the persons who are
directors, officers and employees of the Company and its Subsidiaries (it being
understood that nothing herein shall be deemed to mean that the Company, the
Surviving Corporation and their Subsidiaries shall not be required to honor
their obligations under any legally binding employment, bonus, severance,
consulting, termination or non-competition agreement to which they are a party).
Parent acknowledges and agrees that anything in this Agreement to the contrary
notwithstanding, in the event it shall be determined that any payment or
distribution by, or any other amount resulting from compensation, benefits or
any other remuneration provided by, Parent, the Company, the Surviving
Corporation or any of their Subsidiaries to or for the benefit of any person
employed by the Company or any of its Subsidiaries at any time before the
consummation of the Offer (a "Payment") is or will be subject to the excise tax
imposed by Section 4999 of the Code as a result of the consummation of the Offer
or the Merger, or any interest or penalties or expenses (including any attorney
fees or other professional expenses incurred in challenging the application of
any such tax) are incurred by such person with respect to such excise tax (such
excise tax, together with any such interest and penalties and expenses, are
hereinafter collectively referred to as the "Excise Tax"), then such person
shall be entitled to receive from Parent, the Company or the Surviving
Corporation, and Parent shall cause the Company or the Surviving Corporation to
make, an additional payment pursuant to the terms of the DEKALB Genetics
Corporation Policy and Procedure Regarding Reimbursement of Employees for
Parachute Payment Taxes and Expenses (the "Policy and Procedure"). Parent shall
maintain, and shall cause to be maintained by the Company, the Surviving
Corporation and their Subsidiaries such Policy and Procedure to the extent
required pursuant to the terms thereof.

     Section 7.3 Bonus Programs. Without limitation of Parent's or the Company's
obligations under any existing Employment Agreement, Parent shall maintain, or
shall cause the Company and the Surviving Corporation to maintain, the Company's
bonus programs set forth in the documents made available by the Company to
Parent through the end of the twelve-month period beginning on the most recent
September 1 preceding the consummation of the Offer, with bonuses to be paid to
each Retained Employee participating thereunder in accordance with the
performance goals previously established for such period (the "Existing Goals"),
if (i) the achievement of the Existing Goals can still reasonably be measured
despite the consummation of the transactions contemplated hereby, and (ii) such
achievement has not become unreasonably more difficult or easier than it would
have been absent such consummation. If either of clause (i) or clause (ii) of
the preceding sentence 


                                       27
<PAGE>


is not satisfied with respect to the Existing Goals applicable to a particular
Retained Employee, then the Existing Goals shall be reasonably adjusted, if
possible, so that both such clauses are satisfied as to the adjusted Existing
Goals, and if no such adjustment is possible, such Retained Employee's bonus
shall be paid at his or her target bonus level (subject to all terms and
conditions of such bonus except for the Existing Goals that cannot be so
adjusted).

     Section 7.4 Welfare Plans. Parent shall, or shall cause the Company and the
Surviving Corporation to, take all necessary action so that there shall be (i)
waived all limitations as to preexisting conditions, exclusions and waiting
periods with respect to participation and coverage requirements applicable to
the Retained Employees and former employees of the Company and its Subsidiaries
and the spouses, dependents and other beneficiaries of such persons under any
welfare or fringe benefit plan that any such persons may be eligible to
participate in after the consummation of the Offer, other than limitations or
waiting periods that are in effect with respect to such persons and that have
not been satisfied as of the consummation of the Offer under the corresponding
welfare or fringe benefit plan maintained for such persons immediately prior to
the consummation of the Offer and are not satisfied thereafter and (ii) provided
each such person credit for any co-payments and deductibles paid by such person
for the applicable plan year prior to the consummation of the Offer in
satisfying any applicable deductible or out-of-pocket requirements under any
welfare plans that such person is eligible to participate in after the
consummation of the Offer. Parent shall, or shall cause the Company and the
Surviving Corporation to, provide or continue to provide (and never terminate),
pursuant to the DEKALB Genetics Corporation Retiree Health Care Plan as in
effect on the date hereof, retiree medical and other retiree health benefits to
persons who are immediately prior to the consummation of the Offer eligible for
such benefits under the EMWA Plan as in effect immediately prior to the
consummation of the Offer, or who would immediately prior to the consummation of
the Offer be eligible therefor but for the fact that they, or the person with
respect to whom they are a dependent, had not yet terminated employment with the
Company and its Subsidiaries, or who will or would within twelve months after
the consummation of the Offer be so eligible therefor (such eligibility to be
determined based on the terms of the EMWA Plan as in effect immediately prior to
the date of this Agreement). Parent shall, or shall cause the Company and the
Surviving Corporation to, provide or continue to provide (and never terminate),
pursuant to the DEKALB Genetics Corporation Retiree Health Care Plan as in
effect on the date hereof, medical and other health benefits to persons who
incur or are dependents of persons who incur an illness or other disability or
leave of absence, or are dependents of persons who die, prior to the
consummation of the Offer and who are at such time, or would be after such time,
according to the terms of the EMWA Plan as in effect immediately prior to such
time, eligible for benefits under such plan due to such illness or other
disability or leave of absence or death. Parent shall take all necessary action
so that no amount held at any particular time by the trustee pursuant to the
terms of EMWA Trust Agreement entered into between First National Bank in DeKalb
and the Company (the "EMWA Trust") shall be used for the benefit of any persons
other than the group of employees and former employees (and their spouses,
dependents and beneficiaries) who contributed, or with respect to whom the
Company, the Surviving Corporation and their Subsidiaries contributed, such
amounts. In particular, if after the consummation of the Offer any action is
taken to change the group of employees and former employees covered by the EMWA
Plan, the assets of the EMWA Trust at such time shall only be used for the
benefit of the group of employees and former employees (and their 


                                       28
<PAGE>

spouses, dependents and beneficiaries) covered by the EMWA Plan prior
the effective time of such action.

     Section 7.5 Retirement Plan. For a period of not less than twelve months
from the consummation of the Offer, Parent shall (i) maintain, or cause to be
maintained, for the benefit of the Retained Employees the Company's Savings and
Investment Plan (the "Retirement Plan") as in effect prior to the consummation
of the Offer and (ii) contribute, or cause to be contributed, to the Retirement
Plan, on behalf of each Retained Employee who is or becomes a participant
therein, matching contributions in amounts determined in accordance with the
terms of the Retirement Plan as in effect as of the date hereof, such
contributions to be made on at least a bi-weekly basis, and a "Compensation
Based Contribution" as defined therein equal to 2% of compensation as described
in the Retirement Plan.

     Section 7.6 Options; Restricted Stock Awards. (a) Prior to the execution of
this Agreement, the Board of Directors of the Company or the Long-Term Incentive
Plan Administrative Committee of the Board of Directors of the Company has
adopted such resolutions or has taken such other actions as are required (i) to
provide that each Company Stock Option heretofore granted under any Company
Stock Plan (other than the Company's Director Stock Option Plan) outstanding
immediately prior to the consummation of the Offer, whether or not then
exercisable, shall become fully exercisable immediately prior to the
consummation of the Offer, (ii) to provide that all restrictions applicable to
any restricted stock award heretofore granted under any Company Stock Plan
outstanding immediately prior to the Offer shall lapse immediately prior to the
consummation of the Offer, (iii) to provide that upon the consummation of the
Offer each Company Stock Option then outstanding shall be cancelled in
consideration for the cash payment described in Section 7.6(b) and (iv) with
respect to Company Stock Options held by persons subject to the reporting
requirements of Section 16 of the Exchange Act, to specifically approve the
transactions contemplated by this Section 7.6. The Company shall use reasonable
efforts to obtain any necessary consents of the holders of such Company Stock
Options to effect this Section 7.6.

     (b) The Company shall use reasonable efforts to ensure that, upon the
consummation of the Offer each Company Stock Option then outstanding shall be
cancelled by the Company in consideration for which the holder thereof shall
thereupon be entitled to receive promptly (but in no event later than five days)
after the consummation of the Offer, a cash payment in respect of such
cancellation from the Company in an amount (if any) equal to (i) the product of
(x) the number of shares of Company Common Stock subject or related to such
Company Stock Option and (y) the excess, if any, of the Offer Price over the
exercise or purchase price per share of Company Common Stock subject or related
to such Option, minus (ii) all applicable federal, state and local taxes
required to be withheld by the Company. The Company shall use reasonable efforts
to ensure that, after giving effect to the foregoing, no Company Stock Option
shall be exercisable for Company Common Stock following the consummation of the
Offer.

     Section 7.7 Stockholder Approval; Preparation of Proxy Statement. (a) If
the Company Stockholder Approval is required by law, the Company shall, at
Parent's request, as soon as practicable following the expiration of the Offer
in accordance with the terms of Section 1.1 of this Agreement, so long as
permitted by law, duly call, give notice of, convene and hold a meeting of its



                                       29
<PAGE>

stockholders (the "Stockholders Meeting") for the purpose of obtaining the
Company Stockholder Approval. The Company shall, through its Board of Directors
(but subject to the right of the Company's Board of Directors to withdraw or
modify its approval or recommendation of the Offer, the Merger and this
Agreement as set forth in Section 6.2(b)), recommend to its stockholders that
the Company Stockholder Approval be given. Notwithstanding the foregoing, if Sub
or any other Subsidiary of Parent shall acquire 90% or more of the outstanding
shares of Company Class A Common Stock and 90% or more of the outstanding shares
of Company Class B Common Stock, the parties shall, at the request of Parent,
take all necessary and appropriate action to cause the Merger to become
effective as soon as reasonably practicable after the expiration of the Offer
without a Stockholders Meeting in accordance with Section 253 of the DGCL.

     (b) If the Company Stockholder Approval is required by law, the Company
shall, at Parent's request, as soon as practicable following the expiration of
the Offer in accordance with the terms of Section 1.1, and to the extent
permitted by law, prepare and file a preliminary Proxy Statement with the SEC
and shall use all reasonable efforts to respond to any comments of the SEC or
its staff, and, to the extent permitted by law, to cause the Proxy Statement to
be mailed to the Company's stockholders as promptly as practicable after
responding to all such comments to the satisfaction of the staff. The Company
shall notify Parent promptly of the receipt of any comments from the SEC or its
staff and of any request by the SEC or its staff for amendments or supplements
to the Proxy Statement or for additional information and will supply Parent with
copies of all correspondence between the Company or any of its representatives,
on the one hand, and the SEC or its staff, on the other hand, with respect to
the Proxy Statement or the Merger. If at any time prior to the Stockholders
Meeting there shall occur any event that should be set forth in an amendment or
supplement to the Proxy Statement, the Company shall promptly prepare and mail
to its stockholders such an amendment or supplement. Parent shall cooperate with
the Company in the preparation of the Proxy Statement or any amendment or
supplement thereto. Parent and its counsel shall be given a reasonable
opportunity to review and comment upon the Proxy Statement and any such
correspondence prior to its filing with the SEC or dissemination to the
Company's stockholders, and the Company shall not so file or disseminate any
Proxy Statement, or any amendment or supplement thereto, to which Parent
reasonably objects.

     (c) Parent agrees to cause all Shares purchased pursuant to the Offer and
all other Shares of the Company entitled to vote on the Merger owned by Parent
or any Subsidiary of Parent to be voted in favor of the Merger.

     Section 7.8 Access to Information. Upon reasonable notice and subject to
restrictions contained in confidentiality agreements to which the Company is
subject and subject to the terms of the Confidentiality Agreement, dated March
12, 1998, between the Company and Parent, as the same may be amended,
supplemented or modified (the "Confidentiality Agreement"), the Company shall,
and shall cause each of its Subsidiaries to, afford to Parent and to the
officers, employees, accountants, counsel and other representatives of Parent
all reasonable access, during normal business hours during the period prior to
the Effective Time, to all their respective personnel, properties, books,
contracts, commitments and records and, during such period, the Company shall
and shall cause each of its Subsidiaries to furnish promptly to Parent (a) a
copy of each report, schedule, registration statement and other document filed
or received by it during such period pursuant to the 


                                       30
<PAGE>


requirements of the Federal or state securities laws or the Federal tax laws and
(b) all other information concerning its business, properties and personnel as
Parent may reasonably request, provided, that until the earlier of the Effective
Time or such time as Parent's designees shall constitute a majority of the Board
of Directors of the Company, none of the foregoing persons shall have access to
the respective properties, books, contracts, commitments and records of the
Company or its Subsidiaries with respect to (i) pricing or pricing strategy or
(ii) Intellectual Property Rights, except that the independent person who
reviewed the Company's patent applications on behalf of Parent during the due
diligence process conducted in connection with the negotiation of this Agreement
shall be permitted to review the Company's Intellectual Property Rights other
than access to germplasm pedigree and basic research, and in any event, subject
to confidentiality and disclosure limitations comparable to those previously
applicable to such independent person's review of patent applications, and any
representative of Parent shall be entitled to review material relating to the
Company's Intellectual Property Rights that is otherwise publicly available.
Notwithstanding anything to the contrary in this Agreement or any other
agreement to which the Company and Parent are a party, the Confidentiality
Agreement shall terminate and be of no further force and effect from and after
the date upon which the Offer is consummated.

     Section 7.9 Fees and Expenses. (a) All fees and expenses incurred in
connection with the Offer, the Merger, this Agreement and the transactions
contemplated hereby shall be paid by the party incurring such fees or expenses,
whether or not the Offer or the Merger is consummated.

     (b) The Company may pay the fees and expenses of Merrill Lynch described in
Section 4.17 on or prior to the Effective Time.

     Section 7.10 Public Announcements. Parent and the Company will consult with
each other before issuing any press release or otherwise making any public
statements with respect to the transactions contemplated by this Agreement and
shall not issue any such press release or make any such public statement prior
to such consultation, except as may be required by applicable law, fiduciary
duties or by obligations pursuant to any listing agreement with any national
securities exchange.

     Section 7.11 Real Estate Transfer Tax. Parent and the Company agree that
either the Surviving Corporation or Parent (without any liability to any of the
Company's stockholders) will pay any state or local tax which is attributable to
the transfer of the beneficial ownership of the Company's or its Subsidiaries'
real property, if any (collectively, the "Transfer Taxes"), and any penalties or
interest with respect to the Transfer Taxes, payable in connection with the
consummation of the Offer and the Merger. The Company agrees to cooperate with
Parent in the filing of any returns with respect to the Transfer Taxes,
including supplying in a timely manner a complete list of all real property
interests held by the Company and its Subsidiaries and any information with
respect to such property that is reasonably necessary to complete such returns.
The portion of the consideration allocable to the real property of the Company
and its Subsidiaries shall be determined by Parent in its reasonable discretion.
To the extent permitted by law, the Company's stockholders shall be deemed to
have agreed to be bound by the allocation established pursuant to this Section
7.11 in the preparation of any return with respect to the Transfer Taxes.



                                       31
<PAGE>


     Section 7.12 State Takeover Laws. If any "fair price" or "control share
acquisition" statute or other similar statute or regulation shall become
applicable to the transactions contemplated hereby, Parent and the Company and
their respective Boards of Directors shall use all reasonable efforts to grant
such approvals and take such actions as are necessary so that the transactions
contemplated hereby may be consummated as promptly as practicable on the terms
contemplated hereby and otherwise act to minimize the effects of any such
statute or regulation on the transactions contemplated hereby.

     Section 7.13 Indemnification; Directors and Officers Insurance. (a) All
rights to indemnification or exculpation, existing in favor of a director,
officer, employee or agent (an "Indemnified Person") of the Company or any of
its Subsidiaries (including, without limitation, rights relating to advancement
of expenses and indemnification rights to which such persons are entitled
because they are serving as a director, officer, agent or employee of another
entity at the request of the Company or any of its Subsidiaries), as provided in
the Restated Certificate of Incorporation of the Company, the By-laws of the
Company or any indemnification agreement, in each case, as in effect on the date
of this Agreement, and relating to actions or events through the Effective Time,
shall survive the Merger and shall continue in full force and effect, without
any amendment thereto; provided, however, that the Surviving Corporation shall
not be required to indemnify any Indemnified Person in connection with any
proceeding (or portion thereof) to the extent involving any claim initiated by
such Indemnified Person unless the initiation of such proceeding (or portion
thereof) was authorized by the Board of Directors of the Company or unless such
proceeding is brought by an Indemnified Person to enforce rights under this
Section 7.13; provided further that any determination required to be made with
respect to whether an Indemnified Person's conduct complies with the standards
set forth under the DGCL, the Restated Certificate of Incorporation of the
Company, the By-laws of the Company or any such agreement, as the case may be,
shall be made by independent legal counsel selected by such Indemnified Person
and reasonably acceptable to Parent; and provided further that nothing in this
Section 7.13 shall impair any rights of any Indemnified Person. Without limiting
the generality of the preceding sentence, in the event that any Indemnified
Person becomes involved in any actual or threatened action, suit, claim,
proceeding or investigation after the Effective Time, Parent shall, or shall
cause the Surviving Corporation to, promptly advance to such Indemnified Person
his or her legal and other expenses (including the cost of any investigation and
preparation incurred in connection therewith), subject to the providing by such
Indemnified Person of an undertaking to reimburse all amounts so advanced in the
event of a non-appealable determination of a court of competent jurisdiction
that such Indemnified Person is not entitled thereto.

     (b) In the event that, from and after the Effective Time, a third person
asserts any claim against any Indemnified Person with respect to any matter to
which the foregoing indemnities apply, the Indemnified Person shall give prompt
written notice to the Surviving Corporation, and the Surviving Corporation shall
have the right, at its election, to take over the defense or settlement of such
claim at its own expense by giving prompt written notice to the Indemnified
Person; provided, however, that, (i) if the Surviving Corporation does not give
such notice and does not proceed diligently to defend the claim within thirty
(30) days (or such shorter period as is necessary to permit the Indemnified
Person to respond) after receipt of such notice of the claim, then the
Indemnified Person may employ separate counsel to represent it and defend it
against such claim and (ii) if the Surviving Corporation elects to defend the
claim then the Surviving Corporation shall employ counsel 


                                       32
<PAGE>


reasonably satisfactory to the Indemnified Person and the Indemnified Person
shall be entitled to participate in (but not control) the defense of such claim
and to employ separate counsel at its own expense to assist in the handling of
such claim. The Indemnified Person and the Surviving Corporation shall cooperate
in defending any such third person's claim. Notwithstanding the foregoing,
neither the Surviving Corporation nor the Indemnified Person may settle or
compromise any such claim without the prior written consent of the other, which
consent shall not be unreasonably withheld, unless, after consultation between
such parties, the terms of such settlement or compromise release such
Indemnified Person from any and all liability with respect to such claim and do
not in any manner adversely affect the future operations or activities of such
Indemnified Person.

     (c) Prior to the Effective Time, the Company shall have the right to obtain
and pay for in full a "tail" coverage directors' and officers' liability
insurance policy ("D&O Insurance") covering a period of not less than six years
after the Effective Time and providing coverage in amounts and on terms
consistent with the Company's existing D&O Insurance. In the event the Company
is unable to obtain such insurance, Parent shall cause the Surviving Corporation
to maintain the Company's D&O Insurance for a period of not less than six years
after the Effective Time; provided, that the Surviving Corporation may
substitute therefor policies of substantially similar coverage and amounts
containing terms no less advantageous to such former directors or officers;
provided further that if the existing D&O Insurance expires or is cancelled
during such period, Parent or the Surviving Corporation shall use its best
efforts to obtain substantially similar D&O Insurance; and provided further that
the Company shall not, without Parent's consent (but after consultation with
Parent), expend an amount in excess of 350% of the last annual premium paid
prior to the date hereof to procure the above described "tail" coverage and
neither Parent nor the Surviving Corporation shall be required to expend, in
order to maintain or procure an annual D&O Insurance policy, in lieu of a tail
policy, an amount in excess of 250% of the last annual premium paid prior to the
date hereof, but in such case shall purchase as much coverage as possible for
such amount.

     Section 7.14 Notification of Certain Matters. Parent shall give prompt
notice to the Company, and the Company shall give prompt notice to Parent, of:
(i) the occurrence, or non-occurrence, in each case, to the knowledge of the
Company or Parent, as the case may be, of any event the occurrence, or
non-occurrence, of which results in the executive officers of the Company or
Parent, as the case may be, having a good faith belief that such change or event
would be reasonably likely to cause (x) any representation or warranty of such
entity contained in this Agreement that is not qualified as to materiality to be
untrue or inaccurate in any material respect, (y) any representation or warranty
of such entity contained in this Agreement that is qualified as to materiality
to be untrue or inaccurate in any respect, or (z) any covenant, condition or
agreement of such entity contained in this Agreement not to be complied with or
satisfied in all material respects; and (ii) the executive officers of the
Company or Parent, as the case may be, believing in good faith that the Company
or Parent, as the case may be, has, to the knowledge of the Company or Parent,
as the case may be, failed to comply with in all material respects or satisfy in
all material respects any covenant, condition or agreement of such entity to be
complied with or satisfied by it hereunder; provided, however, that the delivery
of any notice pursuant to this Section 7.14 shall not limit or otherwise affect
the remedies available hereunder to the party receiving such notice. Each of the
Company, Parent and Sub shall give prompt notice to the other parties hereof of
any notice or other 


                                       33
<PAGE>


communication from any third party alleging that the consent of such third party
is or may be required in connection with the transactions contemplated by this
Agreement.

     Section 7.15 Board of Directors. Promptly after such time as Sub purchases
Shares pursuant to the Offer (but subject to the satisfaction of the Minimum
Condition), Sub shall be entitled, to the fullest extent permitted by law, to
designate at its option up to that number of directors, rounded to the next
highest whole number, of the Company's Board of Directors, subject to compliance
with Section 14(f) of the Exchange Act, as will make the percentage of the
Company's directors designated by Sub pursuant to this sentence equal to the
aggregate voting power of the shares of Company Class A Common Stock held by
Parent or any of its Subsidiaries; provided, however, that in the event that
Sub's designees are elected to the Board of Directors of the Company, until the
Effective Time, such Board of Directors shall have (i) at least three directors
who are directors on the date of this Agreement or are designated by a majority
of the directors of the Company who were directors on the date hereof, in each
case excluding the Investor Nominees (as defined in the Investment Agreement)
(the "Independent Directors") and (ii) the number of Investor Nominees required
by the Investment Agreement which shall be in addition to the number of
directors designated by Sub pursuant to this Section 7.15; and provided, further
that, in such event, if the number of Independent Directors shall be reduced
below three for any reason whatsoever, the remaining Independent Directors
shall, to the fullest extent permitted by law, designate a person to fill such
vacancy who shall be deemed to be an Independent Director for purposes of this
Agreement or, if no Independent Directors then remain, the other directors shall
designate three persons to fill such vacancies who shall not be officers or
affiliates of the Company or any of its Subsidiaries, or officers or affiliates
of Parent, of any of its Subsidiaries or of any other entity in which Parent
owns, directly or indirectly, any material amount of capital stock or other
significant ownership interest, and such persons shall be deemed to be
Independent Directors for purposes of this Agreement.

     Following the election or appointment of Sub's designees pursuant to this
Section 7.15 and prior to the Effective Time, any termination or amendment of
this Agreement by the Company, any extension by the Company of the time for the
performance of any of the obligations or other acts of Sub or waiver or
assertion of any of the Company's rights hereunder, and any other consent or
action by the Board of Directors of the Company with respect to this Agreement
(other than recommending or reconfirming the recommendation that the holders of
the Company Class A Common Stock approve and adopt this Agreement and the
Merger, and making determinations in connection therewith, which recommendations
and determinations may be made by a majority of the Board of Directors as
constituted at any time after such election or appointment of Sub's designees
pursuant to this Section) will require the concurrence of a majority of the
Independent Directors and, to the extent permitted by law, no other action by
the Company, including any action by any other director of the Company, shall be
required to approve such actions. To the fullest extent permitted by applicable
law, the Company shall take all actions requested by Parent which are reasonably
necessary to effect the election of any such designee, including mailing to its
stockholders the Information Statement containing the information required by
Section 14(f) of the Exchange Act and Rule 14f-1 promulgated thereunder, and the
Company agrees to make such mailing with the mailing of the Schedule 14D-9
(provided that Sub shall have provided to the Company on a timely basis all
information required to be included in the Information Statement with respect to
Sub's designees). Parent and Sub will be solely responsible for any information
with respect to either of them and their 


                                       34
<PAGE>


nominees, officers, directors and affiliates required by Section 14(f) of the
Exchange Act and Rule 14f-1 promulgated thereunder. In connection with the
foregoing, the Company will promptly, at the option of Parent, to the fullest
extent permitted by law, either increase the size of the Company's Board of
Directors and/or obtain the resignation of such number of its current directors
as is necessary to enable Sub's designees to be elected or appointed to the
Company's Board of Directors as provided above.

     Section 7.16 Best Efforts. Subject to fiduciary responsibilities, each of
the Company, Parent and Sub agrees to use best efforts to cause the purchase of
Shares pursuant to the Offer prior to the Outside Date, and consummation of the
Merger to occur as soon as practicable after such purchase of Shares. Without
limiting the foregoing, (a) each of the Company, Parent and Sub agrees to use
best efforts to take, or cause to be taken, all actions necessary to comply
promptly with all legal requirements that may be imposed on itself with respect
to the Offer and the Merger (which actions shall include making all filings and
furnishing all information required under the HSR Act and in connection with
approvals of or filings with any other Governmental Entity) and shall promptly
cooperate with and furnish information (including all correspondence with any
Governmental Entity) to each other in connection with any such requirements
imposed upon any of them or any of their Subsidiaries in connection with the
Offer and the Merger (b) each of the Company, Parent and Sub shall, and shall
cause its Subsidiaries to, use best efforts to obtain prior to the Outside Date
(and shall cooperate with each other in obtaining) any consent, authorization,
order or approval of, or any exemption by, any Governmental Entity or other
public or private third party required to be obtained or made by Parent, Sub,
the Company or any of their Subsidiaries in connection with the Offer and the
Merger or the taking of any action contemplated thereby or by this Agreement and
(c) if necessary to cause the purchase of Shares pursuant to the Offer prior to
the Outside Date, Parent shall, and shall cause its Subsidiaries to, divest or
hold separate or otherwise take or commit to take any action that limits its
freedom of action with respect to, or its ability to retain, any of the
businesses, product lines or assets of Parent, the Company or any of their
respective Subsidiaries. At the request of Parent, the Company shall agree to
divest, hold separate or otherwise take or commit to take any action that limits
its freedom of action with respect to, or its ability to retain, any of the
businesses, product lines or assets of the Company or any of its Subsidiaries,
provided that any such action may be conditioned upon the purchase of Shares
pursuant to the Offer. Notwithstanding anything to the contrary contained
in this Agreement, in connection with any filing or submission required or
action to be taken by Parent, the Company or any of its respective Subsidiaries
to consummate the Offer, the Merger or the other transactions contemplated in
this Agreement, the Company shall not, without Parent's prior written consent,
commit to any divestiture of assets or businesses of the Company and its
Subsidiaries.

     Section 7.17 Certain Litigation. The Company agrees that it shall not
settle any litigation commenced after the date hereof against the Company or any
of its directors by any stockholder of the Company relating to the Offer, the
Merger, this Agreement or the Stockholders Agreement without the prior written
consent of Parent. In addition, the Company shall not voluntarily cooperate with
any third party that may hereafter seek to restrain or prohibit or otherwise
oppose the Offer or the Merger and shall cooperate with Parent and Sub to resist
any such effort to restrain or prohibit or otherwise oppose the Offer or the
Merger.



                                       35
<PAGE>


     Section 7.18 Return of Confidential Information. No later than five (5)
business days following the date hereof, the Company shall take all reasonable
actions necessary to cause all third parties who have received any confidential
information in connection with any discussions of potential acquisition or
business combination proposals relating to the Company during the previous
twelve months, to return such confidential information to the Company or to
destroy all copies and records of such confidential information.


                       ARTICLE VIII - CONDITIONS PRECEDENT

     Section 8.1 Conditions to Each Party's Obligation to Effect the Merger. The
respective obligations of each party to effect the Merger shall be subject to
the fulfillment at or prior to the Effective Time of the following conditions:

     (a) Company Stockholder Approval. If required by applicable law, the
Company Stockholder Approval shall have been obtained; provided, however, that
Parent and Sub shall vote all of their shares of capital stock of the Company
entitled to vote thereon in favor of the Merger.

     (b) No Injunction or Restraint. No statute, rule, regulation, executive
order, decree, temporary restraining order, preliminary or permanent injunction
or other order issued by any court of competent jurisdiction or other
Governmental Entity preventing the consummation of the Merger shall be in
effect; provided, however, that each of the parties shall have used their best
efforts to prevent the entry of any such temporary restraining order, injunction
or other order, including, without limitation, taking such action as is required
to comply with Section 7.16, and to appeal promptly any injunction or other
order that may be entered.

     (c) Purchase of Shares. Sub shall have previously accepted for payment and
paid for Shares pursuant to the Offer.

     (d) HSR Act. Any waiting period (and any extension thereof) under the HSR
Act applicable to the Merger shall have expired or been terminated.


                     ARTICLE IX - TERMINATION AND AMENDMENT

     Section 9.1 Termination. This Agreement may be terminated at any time prior
to the Effective Time, whether before or after the Company Stockholder Approval
(if required by applicable law):

         (a)  by mutual written consent of Parent, Sub and the Company;

         (b) by either Parent or the Company:

               (i) if (x) as a result of the failure of any of the Offer
          Conditions set forth in Exhibit A, (other than the Minimum Condition)
          the Offer shall have terminated or expired in accordance 


                                       36
<PAGE>


          with its terms without Sub having accepted for payment any
          Shares pursuant to the Offer or (y) Sub shall have, consistent with
          its obligations hereunder, failed to pay for the Shares prior to
          November 9, 1999 (the "Outside Date"); provided, however, that the
          right to terminate this Agreement pursuant to this Section 9.1(b)(i)
          shall not be available to any party whose failure to perform any of
          its obligations under this Agreement results in the failure of any
          such Offer Condition or if the failure of such condition results from
          facts or circumstances that constitute a breach of any representation
          or warranty under this Agreement by such party; or

               (ii) if any Governmental Entity shall have issued an order,
          decree or ruling or taken any other action permanently enjoining,
          restraining or otherwise prohibiting the transactions contemplated by
          this Agreement and such order, decree or ruling or other action shall
          have become final and nonappealable; provided, however, that the right
          to terminate this Agreement pursuant to this Section 9.1(b)(ii) shall
          not be available to any party who has not used its best efforts to
          cause such order to be lifted or otherwise taken such action as is
          required to comply with its obligation under Section 7.16;

     (c) by Parent or Sub prior to the election of Sub's designees to the Board
of Directors of the Company in the event of a breach by the Company of any
representation, warranty, covenant or other agreement contained in this
Agreement which (i) would give rise to the failure of a condition set forth in
paragraph (d) or (e) of Exhibit A and (ii) cannot be or has not been cured
within 30 days after the giving of written notice to the Company;

     (d) by Parent or Sub if either Parent or Sub is entitled to terminate the
Offer as a result of the occurrence of any event set forth in paragraph (c) of
Exhibit A; provided that the temporary suspension of the recommendation of the
Company's Board of Directors referred to herein in accordance with Section
6.2(b) shall not give rise to a right of termination pursuant to this Section
9.1(d);

     (e) by the Company, if Sub or Parent shall have breached in any material
respect any of their respective representations, warranties, covenants or other
agreements contained in this Agreement, which breach or failure to perform
cannot be or has not been cured within 30 days after the giving of written
notice to Parent or Sub, as applicable; or

     (f) by the Company, if the Offer has not been timely commenced in
accordance with Section 1.1.

     Section 9.2 Effect of Termination. In the event of a termination of this
Agreement by either the Company or Parent as provided in Section 9.1, this
Agreement shall forthwith become void and there shall be no liability or
obligation on the part of Parent, Sub or the Company or their respective
officers or directors, except with respect to Section 4.17, Section 5.6, Section
7.9, this Section 9.2 Article X, the penultimate sentence of Section 1.1(a) and
the last sentence of Section 1.2(c); provided, however, that (a) nothing herein
shall relieve any party for liability for any breach hereof and (b) the periods
of limitation with respect to Proprietary Information provided in the second
paragraph of the Confidentiality Agreement shall not expire.



                                       37
<PAGE>

     Section 9.3 Amendment. Subject to Section 7.15, this Agreement may be
amended by the parties hereto, by action taken or authorized by their respective
Boards of Directors at any time before or after obtaining the Company
Stockholder Approval (if required by law), but if the Company Stockholder
Approval shall have been obtained, thereafter no amendment shall be made which
by law requires further approval by the Company's stockholders without obtaining
such further approval. This Agreement may not be amended except by an instrument
in writing signed on behalf of each of the parties hereto.

     Section 9.4 Extension; Waiver. At any time prior to the Effective Time, the
parties hereto, by action taken or authorized by their respective Boards of
Directors, may, to the extent legally allowed, (i) subject to the provisions of
Section 7.15, extend the time for the performance of any of the obligations or
other acts of the other parties hereto, (ii) subject to the provisions of
Section 7.15, waive any inaccuracies in the representations and warranties
contained herein or in any document delivered pursuant hereto or (iii) subject
to the provisions of Section 7.15, waive compliance with any of the agreements
or conditions contained herein. Any agreement on the part of a party hereto to
any such extension or waiver shall be valid only if set forth in a written
instrument signed on behalf of such party. The failure of any party to this
Agreement to assert any of its rights under this Agreement or otherwise shall
not constitute a waiver of those rights.


                         ARTICLE X - GENERAL PROVISIONS

     Section 10.1 Non-Survival of Representations and Warranties and Agreements.
None of the representations and warranties in this Agreement or in any
instrument delivered pursuant to this Agreement shall survive the Effective
Time. This Section 10.1 shall not limit any covenant or agreement of the parties
which by its terms contemplates performance after the Effective Time of the
Merger.

     Section 10.2 Notices. All notices and other communications hereunder shall
be in writing and shall be deemed given if delivered personally, telecopied
(which is confirmed) or sent by overnight courier (providing proof of delivery)
to the parties at the following addresses (or at such other address for a party
as shall be specified by like notice):



                                       38
<PAGE>


         (a)  if to Parent or Sub, to:

                           Monsanto Company
                           700 Chesterfield Parkway North
                           BB3N
                           St. Louis, Missouri  63198
                           Attn:  Robert T. Fraley, Ph. D.
                           Telecopy:  314 737-7037

         with copies to:

                           Monsanto Company
                           800 N. Lindbergh Blvd.
                           E2ND
                           St. Louis, Missouri  63167
                           Attn:  Barbara Blackford, Esq.
                           Telecopy:  314 694-2594
         and:
                           Wachtell Lipton Rosen & Katz
                           51 West 52nd Street
                           New York, New York  10019
                           Attn:  Richard D. Katcher, Esq.
                                     David M. Silk,  Esq.
                           Telecopy:  212 403-2000

         (b)  if to the Company, to:

                           DEKALB Genetics Corporation
                           3100 Sycamore Road
                           DeKalb, Illinois 60115
                           Attn:  Richard O. Ryan, President and
                                    Chief Operating Officer
                           Telecopy: 815 758-3711

         with copies to:

                           DEKALB Genetics Corporation
                           3100 Sycamore Road
                           DeKalb, Illinois 60115
                           Attn:  John H. Witmer, Jr., Esq.
                                  Senior Vice President and General Counsel
                           Telecopy:  815 895-4862



                                       39
<PAGE>


                           Sidley & Austin
                           One First National Plaza
                           Chicago, Illinois  60603
                           Attn:  Thomas A. Cole, Esq.
                           Telecopy:  312 853-7036
         and:
                           Sidley & Austin
                           875 Third Avenue
                           New York, New York 10022
                           Attn:  James G. Archer, Esq.
                           Telecopy:  212 906-2021

     Section 10.3 Interpretation; Definitions. When a reference is made in this
Agreement to an Article or a Section, such reference shall be to an Article or a
Section of this Agreement unless otherwise indicated. The table of contents and
headings contained in this Agreement are for reference purposes only and shall
not affect in any way the meaning or interpretation of this Agreement. Whenever
the words "include," "includes" or "including" are used in this Agreement, they
shall be deemed to be followed by the words "without limitation." As used in
this Agreement, the phrase "made available" shall mean that the information
referred to has been made available if requested by the party to whom such
information is to be made available.

     As used in this Agreement, the following terms have the meanings specified
or referred to in this Section 10.3 and shall be equally applicable to both the
singular and plural forms. Any agreement referred to below shall mean such
agreement as amended, supplemented or modified from time to time to the extent
permitted by the applicable provisions thereof and by this Agreement.

     "ACQUISITION AGREEMENT" shall have the meaning set forth in Section 6.2(b).

     "AGREEMENT" means this Agreement and Plan of Merger, dated as of May 8,
1998 among Parent, Sub and the Company.

     "BENEFIT PLANS" shall have the meaning set forth in Section 4.12(a).

     "CAUSE" shall have the meaning set forth in Section 7.1(b).

     "CERTIFICATE OF MERGER" shall have the meaning set forth in Section 2.3.

     "CLOSING DATE" shall have the meaning set forth in Section 2.2.

     "CODE" means the Internal Revenue Code of 1986, as amended.

     "COMPANY" shall have the meaning set forth in the introductory paragraph of
this Agreement.

     "COMPANY CLASS A COMMON STOCK" shall have the meaning set forth in the
second Whereas provision of this Agreement.



                                       40
<PAGE>


     "COMPANY CLASS B COMMON STOCK" shall have the meaning set forth in the
second Whereas provision of this Agreement.

     "COMPANY FILED SEC DOCUMENTS" shall have the meaning set forth in Section
4.7.
 
     "COMPANY LETTER" means the letter from the Company to Parent dated the date
hereof, which letter relates to this Agreement and is designated therein as the
Company Letter.

     "COMPANY PREFERRED STOCK" shall have the meaning set forth in Section 4.3.

     "COMPANY SEC DOCUMENTS" shall have the meaning set forth in Section 4.6.

     "COMPANY STOCKHOLDER APPROVAL" shall have the meaning set forth in Section
4.4.

     "COMPANY STOCK OPTIONS" shall have the meaning set forth in Section 4.3.

     "COMPANY STOCK PLANS" shall have the meaning set forth in Section 4.3.

     "CONFIDENTIALITY AGREEMENT" shall have the meaning set forth in Section
7.8.

     "CONSTITUENT CORPORATIONS" shall have the meaning set forth in the
introductory paragraph of this Agreement.

     "CONSUMMATION OF THE OFFER" means the purchase of Shares pursuant to the
Offer.

     "D&O INSURANCE" shall have the meaning set forth in Section 7.13(b).

     "DGCL" means the General Corporation Law of the State of Delaware.

     "DISSENTING SHARES" shall have the meaning set forth in Section 3.1(d).

     "DISSENTING STOCKHOLDER" shall have the meaning set forth in Section
3.1(d).

     "EFFECTIVE TIME" shall have the meaning set forth in Section 2.3.

     "EMWA" shall have the meaning set forth in Section 4.12.

     "EMWA PLAN" shall have the meaning set forth in Section 4.12.

     "EMWA TRUST" shall have the meaning set forth in Section 7.4.

     "ENVIRONMENTAL LAWS" means any applicable statute, law, ordinance,
regulation, rule, judgment, decree or order of any Governmental Entity relating
to any matter of pollution, protection of the environment or environmental
regulation or control or regarding Hazardous Substances.



                                       41
<PAGE>


     "ERISA" means the Employee Retirement Income Security Act of 1974, as
amended, together with the rules and regulations promulgated thereunder.

     "ERISA AFFILIATE" shall have the meaning set forth in Section 4.12(c).

     "ERISA BENEFIT PLANS" shall have the meaning set forth in Section 4.12(b).

     "EXCHANGE ACT" means the Securities Exchange Act of 1934, as amended,
together with the rules and regulations promulgated thereunder.

     "EXCISE TAX" shall have the meaning set forth in Section 7.2(b).

     "EXISTING GOALS" shall have the meaning set forth in Section 7.4.

     "EXPENSES" means documented and reasonable out-of-pocket fees and expenses
incurred or paid by or on behalf of Parent in connection with the Offer, the
Merger or the consummation of any of the transactions contemplated by this
Agreement, including all fees and expenses of law firms, commercial banks,
investment banking firms, accountants, experts and consultants to Parent.

     "GOVERNMENTAL ENTITY" means any Federal, state, local or foreign government
or any court, tribunal, administrative agency or commission or other
governmental or other regulatory authority or agency, domestic, foreign or
supranational.

     "HAZARDOUS SUBSTANCE" means any material defined as toxic or hazardous,
including any petroleum and petroleum products, under any applicable
Environmental Law.

     "HSR ACT" means the Hart-Scott-Rodino Antitrust Improvements Act of 1976,
as amended.

     "INDEMNIFIED PERSON" shall have the meaning set forth in Section 7.13(a).

     "INDEPENDENT DIRECTORS" shall have the meaning set forth in Section 7.15.

     "INFORMATION STATEMENT" shall have the meaning set forth in Section 4.8.

     "INTELLECTUAL PROPERTY RIGHTS" means any right to use, all patents, patent
rights, certificates of plant variety protection, trademarks, trade names,
service marks, copyrights, know how and other proprietary intellectual property
rights and computer programs held by the Company or any of its Subsidiaries.

     "INVESTMENT AGREEMENT" shall have the meaning set forth in Section 4.3.
         
     "INVESTOR NOMINEES" shall have the meaning set forth in the Investment
Agreement.



                                       42
<PAGE>


     "KNOWLEDGE" shall mean, with respect to the Company, the actual knowledge
of its executive officers and the actual knowledge of the senior officer of each
of its foreign Subsidiaries and, with respect to Parent, the actual knowledge of
its executive officers of Parent.

     "LIENS"  means  any  pledges,  claims,  liens,  charges,  encumbrances  and
security interests of any kind or nature whatsoever.

     "MATERIAL ADVERSE CHANGE" or "MATERIAL ADVERSE EFFECT" means, when used in
connection with the Company or Parent, as the case may be, any change or effect
(or any development that, insofar as can reasonably be foreseen, is likely to
result in any change or effect) or fact or condition (or any development that,
insofar as can reasonably be foreseen, is likely to result in any fact or
condition) that is materially adverse to the business, properties, assets,
financial condition or results of operations of the Company and its Subsidiaries
taken as a whole, or Parent and its Subsidiaries taken as a whole, as the case
may be, provided, however, that (i) any adverse change, effect or development
that is primarily caused by conditions affecting the United States economy
generally or the economy of any nation or region in which the Company or Parent,
as the case may be, or its Subsidiaries conducts business that is material to
the business of the Company or Parent, as the case may be, and its Subsidiaries,
taken as a whole, shall not be taken into account in determining whether there
has been (or whether there could reasonably be foreseen) a "Material Adverse
Change" or "Material Adverse Effect" with respect to the Company or Parent, as
the case may be, (ii) any adverse change, effect or development that is
primarily caused by conditions generally affecting the industries in which the
Company or Parent, as the case may be, conducts its business shall not be taken
into account in determining whether there has been (or whether there could
reasonably be foreseen) a "Material Adverse Change" or "Material Adverse Effect"
with respect to the Company or Parent, as the case may be, and (iii) any adverse
change, effect or development that is primarily caused by the announcement or
pendency of this Agreement, the Offer, the Merger or the transactions
contemplated hereby shall not be taken into account in determining whether there
has been (or whether there could reasonably be foreseen) a "Material Adverse
Change" or "Material Adverse Effect" with respect to the Company or Parent, as
the case may be.

     "MERGER" shall have the meaning set forth in the third Whereas provision of
this Agreement.
         
     "MERGER CONSIDERATION" shall have the meaning set forth in Section 3.1(c).

     "MERRILL LYNCH" shall have the meaning set forth in Section 1.2(a).

     "MINIMUM CONDITION" shall have the meaning set forth in Exhibit A of this
Agreement.

     "OFFER" shall have the meaning set forth in the second Whereas provision of
this Agreement.

     "OFFER CONDITIONS" shall have the meaning set forth in Section 1.1(a).

     "OFFER DOCUMENTS" shall have the meaning set forth in Section 1.1(b).



                                       43
<PAGE>


     "OFFER PRICE" shall have the meaning set forth in the second Whereas
provision of this Agreement.

     "OTHER BENEFIT PLANS" shall have the meaning set forth in Section 7.1(a).

     "OUTSIDE DATE" shall have the meaning set forth in Section 9.1(b).

     "PARENT" shall have the meaning set forth in the introductory paragraph of
this Agreement.

     "PARENT LETTER" means the letter from Parent to the Company dated the date
hereof, which letter relates to this Agreement and is designated therein as the
Parent Letter.

     "PAYING AGENT" shall have the meaning set forth in Section 3.2(a).

     "PAYMENT" shall have the meaning set forth in Section 7.2(b).

     "PERSON" shall mean any individual, corporation, partnership, limited
liability company, joint venture, association, trust, unincorporated
organization or other entity.

     "POLICY AND PROCEDURE" shall have the meaning set forth in Section 7.2.

     "PROXY STATEMENT" shall have the meaning set forth in Section 4.8.

     "REGISTERED HOLDER" shall have the meaning set forth in the Stockholders
Agreement.

     "RETAINED EMPLOYEES" shall have the meaning set forth in Section 7.1(a).

     "RETIREMENT PLAN" shall have the meaning set forth in Section 7.5.

     "SCHEDULE 14D-1" shall have the meaning set forth in Section 1.1(b).

     "Schedule 14D-9" shall have the meaning set forth in Section 1.2(b).

     "SEC" means the Securities and Exchange Commission.

     "SECURITIES ACT" means the Securities Act of 1933, as amended, together
with the rules and regulations promulgated thereunder.

     "SHARES" shall have the meaning set forth in the second Whereas provision
of this Agreement.

     "SIGNIFICANT SUBSIDIARY" shall have the meaning set forth in Section 4.1.

     "STOCK EQUIVALENTS" shall have the meaning set forth in Section 4.3.



                                       44
<PAGE>


     "STOCKHOLDERS AGREEMENT" shall have the meaning set forth in the fifth
Whereas provision of this Agreement.

     "STOCKHOLDERS MEETING" shall have the meaning set forth in Section 7.7(a).

     "SUB" shall have the meaning set forth in the introductory paragraph of
this Agreement.

     "SUBSIDIARY" or "SUBSIDIARY" of any person means another person, an amount
of the voting securities, other voting ownership or voting partnership interests
of which is sufficient to elect at least a majority of its Board of Directors or
other governing body (or, if there are no such voting interests, 50% or more of
the equity interests of which) is owned directly or indirectly by such first
person.

     "SURVIVING CORPORATION" shall have the meaning set forth in Section 2.1.

     "TAKEOVER PROPOSAL" shall have the meaning set forth in Section 6.2(a).

     "TAX" AND "TAXES" means any federal, state, local or foreign net income,
gross income, gross receipts, windfall profit, severance, property, production,
sales, use, license, excise, franchise, employment, payroll, withholding,
alternative or add-on minimum or any other tax, custom, duty, governmental fee
or other like assessment or charge of any kind whatsoever, together with any
interest or penalty, addition to tax or additional amount imposed by any
Governmental Entity.

     "TAX RETURN" means any return, report or similar statement required to be
filed with respect to any tax including, without limitation, any information
return, claim for refund, amended return or declaration of estimated tax.

     "TRANSFER TAXES" shall have the meaning set forth in Section 7.11.

     "U.S. BENEFIT PLANS" shall have the meaning set forth in Section 4.12(a).

     "VOTING TRUST AGREEMENT" shall have the meaning set forth in the
Stockholders Agreement.

     "VOTING TRUSTEE" shall have the meaning set forth in the Stockholders
Agreement.

     Section 10.4 Counterparts. This Agreement may be executed in counterparts,
all of which shall be considered one and the same agreement, and shall become
effective when one or more counterparts have been signed by each of the parties
and delivered to the other parties, it being understood that all parties need
not sign the same counterpart.

     Section 10.5 Entire Agreement; No Third-Party Beneficiaries. Except for the
Confidentiality Agreement and the Investment Agreement (including the
confidentiality agreement dated May 16, 1995 referenced therein) this Agreement
constitutes the entire agreement and supersedes all prior agreements and
understandings, both written and oral, among the parties with respect to the
subject matter hereof. To the extent there is any inconsistency between the
terms of this Agreement and the Confidentiality Agreement and/or the Investment
Agreement, the provisions of this Agreement shall 


                                       45
<PAGE>


govern. This Agreement, except for the provisions of Section 7.13 and the second
and third sentences of Section 7.2(b), is not intended to confer upon any person
other than the parties hereto any rights or remedies hereunder.

     Section 10.6 Governing Law. This Agreement shall be governed by, and
construed in accordance with, the laws of the State of Delaware, regardless of
the laws that might otherwise govern under applicable principles of conflicts of
laws thereof. In addition, each of the parties hereto (i) consents to submit
itself to the personal jurisdiction of any Federal or state court located in the
State of Delaware in the event any dispute arises out of this Agreement or any
of the transactions contemplated by this Agreement, (ii) agrees that it will not
attempt to deny or defeat such personal jurisdiction by motion or other request
for leave from any such court and (iii) agrees that it will not bring any action
relating to this Agreement or any of the transactions contemplated by this
Agreement in any court other than a Federal or state court sitting in the State
of Delaware.

     Section 10.7 Assignment. Except as otherwise provided in Section 1.1(a)
neither this Agreement nor any of the rights, interests or obligations hereunder
shall be assigned by any of the parties hereto without the prior written consent
of the other parties except that Parent shall be able without the consent of the
Company to assign all of its and Sub's rights and obligations under this
Agreement to another Person that is capable of acquiring a majority of the Class
A Common Stock by the Outside Date, subject in any case to Parent's guarantee of
the performance by such other Person of all of Parent's and Sub's obligations
hereunder, including without limitation the obligation to pay the Offer Price
and the Merger Consideration, and the Company shall take all action necessary to
permit such assignee to consummate the Merger after the purchase of Shares.
Subject to the preceding sentence, this Agreement shall be binding upon, inure
to the benefit of, and be enforceable by, the parties and their respective
successors and assigns.

     Section 10.8 Severability. If any term or other provision of this Agreement
is invalid, illegal or incapable of being enforced by any rule of law, or public
policy, all other conditions and provisions of this Agreement shall nevertheless
remain in full force and effect so long as the economic and legal substance of
the transactions contemplated hereby are not affected in any manner materially
adverse to any party. Upon such determination that any term or other provision
is invalid, illegal or incapable of being enforced, the parties shall negotiate
in good faith to modify this Agreement so as to effect the original intent of
the parties as closely as possible in a mutually acceptable manner in order that
the transactions contemplated by this Agreement may be consummated as originally
contemplated to the fullest extent possible.

     Section 10.9 Enforcement of this Agreement. The parties hereto agree that
irreparable damage would occur in the event that any of the provisions of this
Agreement were not performed in accordance with their specific terms or were
otherwise breached. It is accordingly agreed that the parties shall be entitled
to an injunction or injunctions to prevent breaches of this Agreement and to
enforce specifically the terms and provisions hereof in any court of the United
States or any state having jurisdiction, such remedy being in addition to any
other remedy to which any party is entitled at law or in equity.




                                       46
<PAGE>



     Section 10.10 Obligations of Subsidiaries. Whenever this Agreement requires
any Subsidiary of Parent (including Sub) or of the Company to take any action,
such requirement shall be deemed to include an undertaking on the part of Parent
or the Company, as the case may be, to cause such Subsidiary to take such
action.

     Section 10.11. Merger of the Company into Sub. If at any time prior to the
Closing Date Parent notifies the Company that it desires for the Company to be
merged with and into Sub (in lieu of Sub merging with and into the Company), the
Company, Parent and Sub will promptly negotiate in good faith an amendment to
and restatement of this Agreement which provides for such changes to this
Agreement as are necessary or appropriate to effectuate such merger (and upon
finalization thereof, the parties will promptly enter into such amendment and
restatement).

     IN WITNESS WHEREOF, parent, Sub and the Company have caused this Agreement
to be signed by their respective officers thereunto duly authorized all as of
the date first written above.


                                            MONSANTO COMPANY


                                            By:/s/ Derek K. Rapp
                                               --------------------------------
                                               Derek Rapp
                                               Director, Mergers & Acquisitions



                                            CORN ACQUISITION CORPORATION


                                            By:/s/ Barbara L. Blackford
                                               -------------------------------
                                               Barbara Blackford
                                               President

                                            DEKALB GENETICS CORPORATION


                                            By:/s/ ---------------------------
                                               Bruce P. Bickner
                                               Chairman and Chief Executive 
                                                 Officer




                                       47
<PAGE>

     Section 10.10 Obligations of Subsidiaries. Whenever this Agreement requires
any Subsidiary of Parent  (including  Sub) or of the Company to take any action,
such requirement shall be deemed to include an undertaking on the part of Parent
or the  Company,  as the case may be,  to cause  such  Subsidiary  to take  such
action.

     Section 10.11. Merger of the Company into Sub. If at any time prior to the
Closing Date Parent notifies the Company that it desires for the Company to be
merged with and into Sub (in lieu of Sub merging with and into the Company), the
Company, Parent and Sub will promptly negotiate in good faith an amendment to
and restatement of this Agreement which provides for such changes to this
Agreement as are necessary or appropriate to effectuate such merger (and upon
finalization thereof, the parties will promptly enter into such amendment and
restatement).

     IN WITNESS WHEREOF, PARENT, Sub and the Company have caused this Agreement
to be signed by their respective officers thereunto duly authorized all as of
the date first written above.


                                            MONSANTO COMPANY


                                            By:--------------------------------
                                               Derek Rapp
                                               Director, Mergers & Acquisitions



                                            CORN ACQUISITION CORPORATION


                                            By:-------------------------------
                                               Barbara Blackford
    


                                            DEKALB GENETICS CORPORATION


                                            By:/s/ Bruce P. Bickner
                                               -------------------------------
                                               Bruce P. Bickner
                                               Chairman and Chief Executive 
                                                 Officer



                                      47



<PAGE>

                                                                    EXHIBIT A


                             CONDITIONS OF THE OFFER

     Notwithstanding any other term of the Offer, but subject, in all cases, to
Parent's and Sub's obligations set forth under the Merger Agreement, including,
without limitation, under Section 1.1 and Section 7.16, Sub shall not be
required to accept for payment or, subject to any applicable rules and
regulations of the SEC, including Rule 14e-l(c) under the Exchange Act (relating
to Sub's obligation to pay for or return tendered Shares after the termination
or withdrawal of the Offer), to pay for any Shares tendered pursuant to the
Offer unless (i) there shall have been validly tendered and not withdrawn prior
to the expiration of the Offer such number of shares of Company Class A Common
Stock (together with the shares of Company Class A Common Stock then held by
Parent or any of its Subsidiaries) that would constitute a majority of the
outstanding shares of Company Class A Common Stock (assuming the exercise of all
options to purchase, and the conversion or exchange of all securities
convertible or exchangeable into, shares of Company Class A Common Stock)
outstanding at the expiration date of the Offer (the "Minimum Condition") and
(ii) any waiting period under the HSR Act applicable to the purchase of Shares
pursuant to the Offer shall have expired or been terminated prior to the
expiration of the Offer. Furthermore, notwithstanding any other term of the
Offer, but subject, in all cases, to Parent's and Sub's obligations set forth in
the Merger Agreement under Section 1.1, Sub shall not be required to accept for
payment or, subject as aforesaid, to pay for any Shares not theretofore accepted
for payment or paid for, and may terminate the Offer at any time if, at any time
on or after the date of this Agreement and before the acceptance of such Shares
for payment or the payment therefor, any of the following conditions exists
(other than as a result of any action or inaction of Parent or any of its
Subsidiaries that constitutes a breach of this Agreement):

               (a) there shall be threatened or pending by any Governmental
          Entity any suit, action or proceeding (i) challenging the acquisition
          by Parent or Sub of any Shares under the Offer, seeking to restrain or
          prohibit the making or consummation of the Offer or the Merger or the
          performance of any of the other transactions contemplated by this
          Agreement or the Stockholders Agreement or seeking to obtain from the
          Company, Parent or Sub any damages that are material in relation to
          the Company and its subsidiaries taken as a whole, (ii) seeking to
          prohibit or materially limit the ownership or operation by the
          Company, Parent or any of their respective Subsidiaries of a material
          portion of the business or assets of the Company and its Subsidiaries,
          taken as a whole, or Parent and its Subsidiaries, taken as a whole, or
          to compel the Company or Parent to dispose of or hold separate any
          material portion of the business or assets of the Company and its
          Subsidiaries, taken as a whole, or Parent and its Subsidiaries, taken
          as a whole, as a result of the Offer or any of the other transactions
          contemplated by this Agreement or the Stockholders Agreement, (iii)
          seeking to impose material limitations on the ability of Parent or Sub
          to acquire or hold, or exercise full rights of ownership of, any
          Shares to be accepted for payment pursuant to the Offer including,
          without limitation, the right to vote such Shares on all matters
          properly presented to the stockholders of the Company, (iv) seeking to
          prohibit 



                                     A-1
<PAGE>


          Parent or any of its Subsidiaries from effectively controlling in any
          material respect any material portion of the business or operations of
          the Company or its Subsidiaries or (v) which otherwise is reasonably
          likely to have a material adverse effect on the business, properties,
          assets, financial condition or results of operations of the Company
          and its Subsidiaries taken as a whole; provided that the right of Sub
          to not accept for payment or pay for, any Shares not theretofore
          accepted for payment or paid for, or to terminate the Offer, pursuant
          to this subparagraph (a) shall not be available if Parent or Sub has
          not taken such action as is required to comply with Section 7.16;

               (b) there shall be enacted, entered, enforced, promulgated or
          deemed applicable to the Offer or the Merger by any Governmental
          Entity any statute, rule, regulation, judgment, order or injunction,
          other than the application to the Offer or the Merger of applicable
          waiting periods under the HSR Act, that is reasonably likely to
          result, directly or indirectly, in any of the consequences referred to
          in clauses (i) through (v) of paragraph (a) above; provided that the
          right of Sub to not accept for payment or pay for, any Shares not
          theretofore accepted for payment or paid for, or to terminate the
          Offer pursuant to this subparagraph (b) shall not be available to
          Parent or Sub if Parent or Sub has not taken such action as is
          required to comply with Section 7.16;

               (c) (i) the Board of Directors of the Company or any committee
          thereof shall have withdrawn or modified in a manner adverse to Parent
          or Sub its approval or recommendation of the Offer, the Merger or this
          Agreement or (ii) the Board of Directors of the Company or any
          committee thereof shall have resolved to take any of the foregoing
          actions;

               (d) any of the representations and warranties of the Company set
          forth in this Agreement that are qualified as to materiality shall not
          be true and correct in any respect or any such representations and
          warranties that are not so qualified shall not be true and correct in
          any material respect, in each case, at the date of this Agreement and
          as if such representations and warranties were made as of such time of
          determination (except that (i) representations and warranties that
          speak as of a specified date shall only be true and correct to such
          extent as of such date and (ii) no representation or warranty of the
          Company shall be deemed to be untrue in any respect as a result of any
          event or circumstance that occurred after (and did not occur on or
          before) the first anniversary of the date hereof);

               (e) the Company shall have and be continuing to have failed to
          perform in any material respect any material obligation or to comply
          in any material respect with any material agreement or covenant of the
          Company to be performed or complied with by it under this Agreement;
          or


                                       A-2
<PAGE>

               (f) there shall have occurred (i) any general suspension of
          trading in, or limitation on prices for, securities on a national
          securities exchange in the United States (excluding any coordinated
          trading halt triggered solely as a result of a specified decrease in a
          market index), (ii) a declaration of a banking moratorium or any
          suspension of payments in respect of banks in the United States, (iii)
          any limitation (whether or not mandatory) by any Governmental Entity
          on, or other event that materially adversely affects, the extension of
          credit by banks or other lending institutions, (iv) a commencement of
          a war or armed hostilities or other national or international calamity
          directly or indirectly involving the United States which in any case
          is reasonably expected to have a material adverse effect on the
          Company or to materially adversely affect Parent's or Sub's ability to
          complete the Offer and/or the Merger or materially delay the
          consummation of the Offer and/or the Merger; or

               (g) this Agreement shall have been terminated in accordance with
          its terms.

     The foregoing conditions are for the sole benefit of Parent and Sub and
may, subject to the terms of this Agreement, be waived by Parent and Sub in
whole or in part at any time and from time to time in their sole discretion. The
failure by Parent or Sub at any time to exercise any of the foregoing rights
shall not be deemed a waiver of any such right, the waiver of any such right
with respect to particular facts and circumstances shall not be deemed a waiver
with respect to any other facts and circumstances and each such right shall be
deemed an ongoing right that may be asserted at any time and from time to time.
Terms used but not defined herein shall have the meanings assigned to such terms
in the Agreement to which this Exhibit A is a part.



                                       A-3
<PAGE>


                                                                     EXHIBIT B

                              AMENDED AND RESTATED

                          CERTIFICATE OF INCORPORATION

                                       OF

                           DEKALB GENETICS CORPORATION

                                    ARTICLE I
                                   ----------

     The name of the corporation (which is hereinafter referred to as the
"Corporation") is:
                           DEKALB Genetics Corporation

                                   ARTICLE II
                                   ----------

     The address of the Corporation's registered office in the State of Delaware

is The Corporation Trust Center, 1209 Orange Street in the City of Wilmington,

County of New Castle. The name of the Corporation's registered agent at such

address is The Corporation Trust Company.


                                   ARTICLE III
                                   -----------

     The purpose of the Corporation shall be to engage in any lawful act or

activity for which corporations may be organized and incorporated under the

General Corporation Law of the State of Delaware.


                                   ARTICLE IV
                                   ----------

     Section 1. The Corporation shall be authorized to issue 2,000 shares of

capital stock, of which 1,000 shares shall be shares of Common Stock, $0.01 par

value ("Common Stock"), and 1,000 



                                       B-1
<PAGE>



shares shall be shares of Preferred stock, $0.01 par value ("Preferred Stock").


     Section 2. Shares of Preferred Stock may be issued from time to time in one

or more series. The Board (as defined below) is hereby authorized to fix the

voting rights, if any, designations, powers, preferences and the relative,

participation, optional or other rights, if any, and the qualifications,

limitations or restrictions thereof, of any unissued series of Preferred Stock;

and to fix the number of shares constituting such series, and to increase or

decrease the number of shares of any such series (but not below the number of

shares thereof then outstanding).


     Section 3. Except as otherwise provided by law or by the resolution or

resolutions adopted by the Board designating the rights, powers and preferences

of any series of Preferred Stock, the Common Stock shall have the exclusive

right to vote for the election of directors and for all other purposes. Each

share of Common Stock shall have one vote, and the Common Stock shall vote

together as a single class.


                                    ARTICLE V
                                   ----------

     Unless and except to the extent that the By-Laws of the Corporation shall

so require, the election of directors of the Corporation need not be by written

ballot.


                                   ARTICLE VI
                                   ----------

     In furtherance and not in limitation of the powers conferred by law, the

Board of Directors of the Corporation (the "Board") is expressly authorized and

empowered to make, alter and repeal, the By-Laws of the Corporation by a

majority vote at any regular or special meeting of the Board or by written

consent, subject to the power of the stockholders of the Corporation to alter or

repeal any 


                                       B-2
<PAGE>

By-Laws made by the Board.

                                   ARTICLE VII
                                   -----------

     The Corporation reserves the right at any time from time to time to amend,

alter, change or repeal any provision contained in this Certificate of

Incorporation, and any other provisions authorized by the laws of the State of

Delaware at the time in force may be added or inserted, in the manner now or

hereafter prescribed by law; and all rights, preferences and privileges of

whatsoever nature conferred upon stockholders, directors or any other persons

whomsoever by and pursuant to this Certificate of Incorporation in its present

form or as hereafter amended are granted subject to the right reserved in this

Article.

                                  ARTICLE VIII
                                  ------------
         
     Section 1. Elimination of Certain Liability of Directors. A director of the

Corporation shall not be personally liable to the Corporation or its

stockholders for monetary damages for breach of fiduciary duty as a director,

except to the extent such exemption from liability or limitation thereof is not

permitted under the General Corporation Law of the State of Delaware as the same

exists or may hereafter be amended.

     Any appeal or modification of the foregoing paragraph shall not adversely

affect any right or protection of a director of the Corporation existing

hereunder with respect to any act or omission occurring prior to such repeal or

modification.

         Section 2.  Indemnification and Insurance.

         (a) Right to Indemnification. Each person who was or is made a party or

is threatened to be made a party to or is involved in any action, suit or

proceeding, whether civil, criminal, administrative 

                                       B-3
<PAGE>


or investigative (hereinafter a "proceeding"), by reason of the fact that he or

she, or a person of whom he or she is the legal representative, is or was a

director or officer of the Corporation or is or was serving at the request of

the Corporation as a director, officer, employee or agent of another corporation

or of a partnership, joint venture, trust or other enterprise, including service

with respect to employee benefit plans, whether the basis of such proceeding is

alleged action in an official capacity as a director, officer, employee or agent

or in any other capacity while serving as a director, officer, employee or

agent, shall be indemnified and held harmless by the Corporation to the fullest

extent authorized by the General Corporation Law of the State of Delaware, as

the same exists or may hereafter be amended (but, in the case of any such

amendment, to the fullest extent permitted by law, only to the extent that such

amendment permits the Corporation to provide broader indemnification rights than

said law permitted the Corporation to provide prior to such amendment), against

all expense, liability and loss (including attorneys' fees, judgments, fines,

amounts paid or to be paid in settlement, and excise taxes or penalties arising

under the Employee Retirement Income Security Act of 1974) reasonably incurred

or suffered by such person in connection therewith and such indemnification

shall continue as to a person who has ceased to be a director, officer, employee

or agent and shall inure to the benefit of his or her heirs, executors and

administrators; provided, however, that, except as provided in paragraph (b)

hereof, the Corporation shall indemnify any such person seeking indemnification

in connection with a proceeding (or part thereof) initiated by such person only

if such proceeding (or part thereof) was authorized by the Board. The right to

indemnification conferred in this Section shall be a contract right and shall

include the right to be paid by the Corporation the expenses incurred in

defending any such proceeding in advance of its final disposition; provided,

however, that, if the General Corporation Law of the State of Delaware requires,

the payment of such expenses incurred by a director or officer in his or her

capacity as a 


                                       B-4
<PAGE>


director or officer (and not in any other capacity in which service was or is

rendered by such person while a director or officer, including, without

limitation, service to an employee benefit plan) in advance of the final

disposition of a proceeding, shall be made only upon delivery to the Corporation

of an undertaking, by or on behalf of such director or officer, to repay all

amounts so advanced if it shall ultimately be determined that such

director or officer is not entitled to be indemnified under this Section or

otherwise. The Corporation may, by action of the Board, provide indemnification

to employees and agents of the Corporation with the same scope and effect as the

foregoing indemnification of directors and officers.

     (b) Right of Claimant to Bring Suit. If a claim under paragraph (a) of this

Section is not paid in full by the Corporation within thirty days after a

written claim has been received by the Corporation, the claimant may at any time

thereafter bring suit against the Corporation to recover the unpaid amount of

the claim and, if successful in whole or in part, the claimant shall be entitled

to be paid also the expense of prosecuting such claim. It shall be a defense to

any such action (other than an action brought to enforce a claim for expenses

incurred in defending any proceeding in advance of its final disposition where

the required undertaking, if any is required, has been tendered to the

Corporation) that the claimant has not met the standards of conduct which make

it permissible under the General Corporation Law of the State of Delaware for

the Corporation to indemnify the claimant for the amount claimed, but the burden

of proving such defense shall be on the Corporation. Neither the failure of the

Corporation (including its Board, independent legal counsel, or its

stockholders) to have made a determination prior to the commencement of such

action that indemnification of the claimant is proper in the circumstances

because he or she has met the applicable standard of conduct set forth in the

General Corporation Law of the State of Delaware, nor an actual determination by

the Corporation (including its Board, independent legal counsel, or its

stockholders) that the claimant

                                      B-5
<PAGE>



has not met such applicable standard of conduct, shall be a defense to the

action or create a presumption that the claimant has not met the applicable

standard of conduct.


     (c) Non-Exclusivity of Rights. The right to indemnification and the payment

of expenses incurred in defending a proceeding in advance of its final

disposition conferred in this Section shall not be exclusive of any other right

which any person may have or hereafter acquire under any statute, provision of

the Certificate of Incorporation, By-law, agreement, vote of stockholders or

disinterested directors or otherwise.


     (d) Insurance. The Corporation may maintain insurance, at its expense, to

protect itself and any director, officer, employee or agent of the Corporation

or another corporation, partnership, joint venture, trust or other enterprise

against any such expense, liability or loss, whether or not the Corporation

would have the power to indemnify such person against such expense, liability or

loss under the General Corporation Law of the State of Delaware.


                                      B-6
<PAGE>


                                                                       Exhibit 2



                             STOCKHOLDERS AGREEMENT

         THIS STOCKHOLDERS AGREEMENT, dated as of May 8, 1998 (this
"Agreement"), among Monsanto Company, a Delaware corporation ("Parent"), and the
voting trustees, individually and in his or her capacity as such voting trustee
(the "Voting Trustees"), and the registered holders of voting trust
certificates, individually and in his or her capacity as such registered holder
(the "Registered Holders"), under that certain Roberts Family Voting Trust
Agreement, dated as of January 31, 1996 (the "Voting Trust Agreement"), relating
to shares of Class A Common Stock ("Voting Common Stock") of DEKALB Genetics
Corporation, a Delaware corporation (the "Company"),

                              W I T N E S S E T H:

         WHEREAS, concurrently with the execution and delivery of this Agreement
by the parties hereto, the Company, Parent and Corn Acquisition Corporation, a
Delaware corporation ("Sub"), are entering into an Agreement and Plan of Merger,
dated as of the date hereof (the "Merger Agreement"), pursuant to which Parent
has agreed to make or cause Sub to make a cash tender offer (the "Offer") for
all outstanding shares of Voting Common Stock and Class B Common Stock of the
Company (collectively, "Company Common Shares") at the Offer Price (as defined
in the Merger Agreement), the completion of such tender offer to be followed by
a merger of Sub with and into the Company (the "Merger");

         WHEREAS, Parent and Sub are entering into the Merger Agreement and
pursuing the transactions contemplated thereby in reliance on the
representations and warranties of the Voting Trustees and the Registered Holders
contained herein;

         WHEREAS, the Voting Trustees possess record title to the shares of
Voting Common Stock subject to the Voting Trust Agreement as set forth on
Schedule I attached hereto (the "Subject Shares") and are entitled, upon the
written instruction of the Registered Holders, to vote in favor of the Merger
Agreement and the transactions contemplated thereby, and to tender and sell to
Parent pursuant to the Offer, all of the Subject Shares;

         WHEREAS, each Registered Holder set forth on Schedule II hereto is the
holder of Trust Certificates, as defined in the Voting Trust Agreement, with
respect to, and beneficially owns, the number of Subject Shares set forth
opposite such Registered Holder's name on Schedule II; and

         WHEREAS, as a condition to the willingness of Parent to enter into the
Merger Agreement, Parent has required that each Voting Trustee and each 
Registered Holder agree, 


                                       1
<PAGE>

and in order to induce Parent to enter into the Merger Agreement, each Voting
Trustee and each Registered Holder has agreed, to enter into this Agreement.

         NOW, THEREFORE, in consideration of the foregoing and the mutual
agreements contained herein, and intending to be legally bound hereby, the
parties hereto hereby agree as follows:

                                    ARTICLE I

                                VOTING OF SHARES

         SECTION 1.1 Instructions to Voting Trustees. Contemporaneously with the
execution and delivery of this Agreement by the parties hereto, each Registered
Holder has provided written instructions to the Voting Trustees in the form
attached hereto as Exhibit A (the "Voting and Tendering Instructions") to (a) at
any duly noticed meeting of the stockholders of the Company called to vote upon
the Merger Agreement and the transactions contemplated thereby or at any
adjournment thereof or in any other circumstances under which a vote, consent or
approval (including by written consent) with respect to the Merger Agreement and
the transactions contemplated thereby is sought, vote the Subject Shares set
forth opposite such Registered Holder's name on Schedule II hereto in favor of
the approval and adoption of the Merger Agreement and the transactions
contemplated thereby, and (b) be present (in person or by proxy) at any duly
noticed meeting of stockholders of the Company or any adjournment thereof or in
any other circumstances under which the vote, consent or other approval of the
stockholders of the Company is sought with respect to any Business Combination
(as such term is defined in the Monsanto Agreement (as hereinafter defined))
other than the Merger, and vote (or cause to be voted) such Subject Shares
against any such Business Combination, in either such case during the time this
Agreement is in effect. Each Registered Holder agrees not to amend or modify or
take any action that would nullify the Voting and Tendering Instructions, so
long as this Agreement is in effect. Each Voting Trustee and each Registered
Holder acknowledges and agrees that the instructions contained in the Voting and
Tendering Instructions are sufficient to authorize the Voting Trustees to vote
the Subject Shares in accordance with the terms thereof.

         SECTION 1.2 Voting Agreement. At any duly noticed meeting of
stockholders of the Company called to vote upon the Merger Agreement and the
transactions contemplated thereby or at any adjournment thereof or in any other
circumstances upon which a vote, consent or other approval (including by written
consent) with respect to the Merger Agreement and the transactions contemplated
thereby is sought, the Voting Trustees shall vote (or cause to be voted) the
Subject Shares in accordance with the Voting and Tendering Instructions. At any
duly noticed meeting of stockholders of the Company or any adjournment thereof
or in any other circumstances upon which the stockholders' vote, consent or
other approval is sought, the Voting Trustees shall be present (in person or by
proxy) and shall vote (or cause to be voted) the Subject Shares against: (a) any
action, proposal or agreement that could reasonably be expected to result in a
breach in any material respect of any covenant, representation or warranty or
any other obligation of the Company 


                                       2
<PAGE>

under the Merger Agreement, or which could reasonably be expected to result in
any of the conditions set forth in Article VIII or Exhibit A of the Merger
Agreement not being fulfilled; (b) any Business Combination or any Takeover
Proposal (as hereinafter defined), in either case other than the Merger, the
Merger Agreement and the transactions contemplated thereby; and (c) (i) any
other extraordinary corporate transaction other than the Merger, the Merger
Agreement and the transactions contemplated thereby, such as a merger,
consolidation, business combination, reorganization, recapitalization or
liquidation involving the Company or any of its subsidiaries, or a sale or
transfer of a material amount of the assets of the Company or any of its
subsidiaries or (ii) any other proposal or transaction not covered by the
foregoing which would in any manner impede, frustrate, prevent, delay or nullify
the Merger, the Merger Agreement or the transactions contemplated thereby.

         SECTION 1.3  Irrevocable Proxy.

         (a) In furtherance of the transactions contemplated hereby,
concurrently with the execution of this Agreement, the Voting Trustees shall
execute and deliver to Parent a proxy in the form attached hereto as Exhibit B
(the "Proxy"). THE PROXY IS IRREVOCABLE AND COUPLED WITH AN INTEREST.

         (b) Each Voting Trustee hereby revokes all other proxies and powers of
attorney with respect to the Subject Shares which such Voting Trustee may have
heretofore appointed or granted, and no subsequent proxy or power of attorney
shall be given or written consent executed (and if given or executed, such proxy
or power of attorney shall not be effective) by such Voting Trustee with respect
thereto.

         SECTION 1.4 No Inconsistent Agreements. Each Voting Trustee hereby
covenants and agrees that, except as contemplated by this Agreement and the
Proxy, such Voting Trustee shall not enter into any agreement or arrangement or
grant a proxy or power of attorney or other authorization with respect to the
Subject Shares or take any other action, including, without limitation, by
terminating the Voting Trust Agreement, that would in any way restrict, limit or
interfere with the performance of any Voting Trustee's obligations hereunder or
the consummation of the transactions contemplated by the Merger Agreement.

                                   ARTICLE II

                     TENDER OFFER; TENDER OF SUBJECT SHARES

         SECTION 2.1 Parent's Obligations Regarding the Offer. So long as this
Agreement is in effect, Parent agrees: (a) that it shall not and that it shall
cause Sub not to (i) reduce the number of Company Common Shares to be purchased
in the Offer, (ii) reduce the Offer Price (as defined in the Merger Agreement),
(iii) impose any conditions to the Offer in addition to the Offer Conditions (as
defined in the Merger Agreement) or modify the Offer Conditions (other than to
waive any Offer Conditions to the extent not prohibited by the Merger
Agreement), (iv) change the form of consideration payable in the Offer or (v)
make any other change or modification in any of the terms of the Offer in any
manner that is 


                                       3
<PAGE>

adverse to the holders of Company Common Shares; (b) that it shall and shall
cause Sub to use its best efforts to cause the Offer Conditions to be satisfied
no later than the Outside Date (as defined in the Merger Agreement); (c) that it
shall extend the Offer until such date as the Offer Conditions have been
satisfied or such later date as required by applicable law; and (d) that it
shall accept and pay for or cause Sub to accept and pay for all of the Company
Common Shares validly tendered and not withdrawn pursuant to the Offer as
promptly as practicable after satisfaction of the Offer Conditions, subject to
compliance with applicable law and subject to the right of Parent or Sub to
extend the Offer for up to an aggregate of fifteen business days under the
circumstances described in Section 1.1(a) of the Merger Agreement. Whether or
not the Merger Agreement is terminated, Parent shall and shall cause Sub to
comply with all covenants of Parent relating to the Offer as set forth in the
Merger Agreement, so long as this Agreement remains in effect.

         SECTION 2.2 Instructions to Voting Trustees. Contemporaneously with the
execution and delivery of this Agreement by the parties hereto, each Registered
Holder has provided written instructions to the Voting Trustees in the form of
the Voting and Tendering Instructions attached hereto as Exhibit A to tender as
soon as practicable (and in any event not later than two business days prior to
the first scheduled expiration date of the Offer) the Subject Shares set forth
opposite such Registered Holders' name on Schedule II hereto pursuant to the
Offer, and not to withdraw such tender of the Subject Shares so long as this
Agreement is in effect. Each Registered Holder agrees not to amend or modify or
take any action that would nullify the Voting and Tendering Instructions or in
any way restrict, limit or interfere with the performance of such Registered
Holder's obligations hereunder or the consummation of the transactions
contemplated by the Merger Agreement, including without limitation by
withdrawing any of the Subject Shares from the Voting Trust Agreement, in any
such case as long as this Agreement is in effect.

         SECTION 2.3 Tendering of Subject Shares. As promptly as practicable
after the execution and delivery of this Agreement by the parties hereto and in
any event not later than two business days prior to the first scheduled
expiration date of the Offer, the Voting Trustees shall tender the Subject
Shares pursuant to the Offer by delivering to the depository for the Offer a
fully executed letter of transmittal together with the certificates for the
Subject Shares and any other documents that may be reasonably requested by
Parent or such depository to give effect to the tender of the Subject Shares
pursuant to the Offer, and the Voting Trustees further agree not to withdraw
such tender of the Subject Shares so long as this Agreement is in effect. The
Voting Trustees agree not to take any action inconsistent with the Voting and
Tendering Instructions.



                                       4
<PAGE>

                                   ARTICLE III

                        RESTRICTIONS ON TRANSFER; CERTAIN

                              ADDITIONAL COVENANTS

         SECTION 3.1  Transfer of Title.

         (a) Each Voting Trustee and each Registered Holder covenants and agrees
not to directly or indirectly sell, assign, pledge, hypothecate, transfer,
exchange, convert (including, without limitation, converting any of the Subject
Shares into shares of Class B Common Stock of the Company) or withdraw from the
trust created by the Voting Trust Agreement (the "Voting Trust") or dispose of,
including by tendering into any tender or exchange offer by any third party
(collectively, "Transfer"), or enter into any contract, option or other
arrangement with respect to the Transfer of, any of the Subject Shares or any
interest therein (including, without limitation, any Trust Certificates with
respect to such Subject Shares) or deposit any of the Subject Shares into a
voting trust or enter into a voting trust agreement or arrangement with respect
to the Subject Shares (it being acknowledged by the parties hereto that the
Subject Shares are held subject to the Voting Trust Agreement, the Roberts
Family Shareholder Agreement dated as of January 31, 1996, among the Registered
Holders (the "Family Shareholder Agreement" and, together with the Voting Trust
Agreement, the "Family Agreements") and the Monsanto Agreement), or to take any
other action with respect to such Subject Shares or such Trust Certificates, or
otherwise permit or authorize any of the foregoing actions, other than pursuant
to the Offer, the Merger or this Agreement, without the prior written consent of
Parent, so long as this Agreement is in effect.

         (b) Each Voting Trustee and each Registered Holder hereby agrees and
consents to the entry of stop transfer instructions with the Company's transfer
agent against the transfer of any Subject Shares, consistent with the terms of
Section 3.1(a). Each Voting Trustee further agrees that such Voting Trustee
shall not permit any transfer of Trust Certificates to be recorded on the books
maintained by the Voting Trustees for such purpose pursuant to the Voting Trust
Agreement, except as expressly permitted by this Agreement.

         (c) Each Voting Trustee and each Registered Holder represents and
warrants that the legend set forth in Section 3.3 of the Monsanto Agreement has
been placed pursuant to such Section 3.3 on each of the certificates
representing Subject Shares. Each Voting Trustee and each Registered Holder
further agrees to use best efforts to place or cause to be placed on such
certificates and the Trust Certificates any additional legends with respect to
this Agreement and the transactions contemplated hereby as Parent may reasonably
request in order to effectuate the terms hereof.

         (d) Douglas C. Roberts, Virginia R. Holt and John T. Roberts
(collectively, the "Optionees") hold options to purchase the number of shares of
Voting Common Stock set forth on Schedule III hereto. Without the prior written
consent of Parent, none of the Optionees shall Transfer such options or enter
into any contract or other arrangement to 


                                       5
<PAGE>

transfer such options. Further, the Optionees shall, upon any exercise of such
options, promptly deposit the shares of Voting Common Stock so purchased with
the Voting Trustees under the Voting Trust Agreement and thereafter such shares
shall be deemed Subject Shares for purposes of this Agreement.

         SECTION 3.2  Nonrecognition of Certain Transfers.

         (a) Any transfer, acquisition, withdrawal from the Voting Trust or
conversion of Subject Shares or transfer of Trust Certificates in violation of
this Agreement shall be null and void. Each Voting Trustee and Registered Holder
agrees that any such transfer, acquisition withdrawal or conversion may and
should be enjoined.

         (b) If any involuntary transfer of any of the Subject Shares shall
occur (such as, but not limited to, a sale by a Registered Holder's trustee in
bankruptcy, or a sale to a purchaser at any creditor's or court sale) the
transferee (which term, as used herein, shall include any and all transferees
and subsequent transferees of the initial transferee) shall take and hold such
Subject Shares subject to all of the restrictions, liabilities and rights under
this Agreement, which shall continue in full force and effect.

         SECTION 3.3 Existing Agreements. To the extent that this Agreement is
inconsistent with any provision of the Family Agreements, the Registered Holders
and the Voting Trustees agree that such provision of such Family Agreement or
Family Agreements is hereby amended to the extent necessary so that each
Registered Holder and Voting Trustee can and must fully perform its obligations
under this Agreement. Each Registered Holder and each Voting Trustee agrees not
to otherwise amend any of the Family Agreements during the term of this
Agreement without the prior written consent of Parent. Without limiting the
first sentence of this Section 3.3, each Voting Trustee and each Registered
Holder agrees that the Offer is a tender offer meeting the requirements of the
fourth paragraph of Section 7 of the Voting Trust Agreement and that,
notwithstanding anything to the contrary therein, the Voting Trustees may agree
to tender and tender the Subject Shares prior to the publication by the Company
to security holders of the Company of a statement pursuant to Rule 14e-2 (or any
successor rule) under the Securities Exchange Act of 1934, as amended, and that
none of the Voting and Tendering Instructions, the Proxy or the tender of the
Subject Shares by the Voting Trustees are or will be subject to the restrictions
on transfer included in Section 2 of the Family Shareholder Agreement. At the
request of Parent, each Voting Trustee and Registered Holder also agrees to use
all reasonable efforts to cause any legends to be removed from any certificates
representing the Subject Shares and any stop transfer orders with respect
thereto to be rescinded to the extent necessary to permit the consummation of
the transactions contemplated by this Agreement.

         SECTION 3.4 Successor Voting Trustees. The Voting Trustees agree not to
resign as Voting Trustees during the term of this Agreement. The Voting Trustees
and the Registered Holders agree that no successor or additional Trustee shall
be appointed unless required by law or the Voting Trust Agreement and that,
should it become necessary to appoint any such successor or additional Voting
Trustee, the remaining Voting Trustees shall 


                                       6
<PAGE>

promptly designate such successor or additional Voting Trustee pursuant to the
terms of the Voting Trust Agreement, provided however, that the terms of this
Agreement shall be binding upon any successor or additional Voting Trustee.

                                   ARTICLE IV

              REPRESENTATIONS AND WARRANTIES OF THE VOTING TRUSTEES

         Each Voting Trustee hereby represents and warrants to Parent as
follows:

          SECTION 4.1 Authority Relative to This Agreement. Such Voting Trustee
has all requisite power and authority to execute and deliver this Agreement, to
perform its obligations hereunder and to consummate the transactions
contemplated hereby. This Agreement, the Monsanto Agreement and each of the
Family Agreements has been duly and validly executed and delivered by such
Voting Trustee and constitutes a valid and binding obligation of such Voting
Trustee, enforceable against such Voting Trustee in accordance with its terms,
subject to the effect of any applicable bankruptcy, reorganization, insolvency,
moratorium or other similar laws affecting or relating to the enforcement of
creditors rights generally and to general principles of equity.

         SECTION 4.2 No Conflict. Except for such filings, permits,
authorizations, consents and approvals as may be required under, and other
applicable requirements of, the HSR Act (as defined in the Merger Agreement) and
foreign and supranational laws relating to antitrust and anticompetition
clearances, the execution and delivery of this Agreement by such Voting Trustee
does not, and the performance of this Agreement by such Voting Trustee will not,
result in any breach of or constitute a default (or an event that with notice or
lapse of time or both would become a default) under, or give to others any
rights of termination, amendment, acceleration or cancellation of, or result in
the creation of a lien or encumbrance on any of the Subject Shares pursuant to,
the Family Agreements, the Monsanto Agreement or any note, bond, mortgage,
indenture, contract, agreement, lease, instrument, license, permit, franchise,
judgment, order, decree, statute, law, rule or regulation applicable to such
Voting Trustee or by which such Voting Trustee or the Subject Shares are bound
or affected the effect of which, in any case, would be to prevent or delay in
any material respect the ability of such Voting Trustee to comply with the terms
hereof.

         SECTION 4.3 The Subject Shares. The Voting Trustees are the record
holders of the Subject Shares set forth on Schedule I hereto, free and clear of
any claims, liens, encumbrances and security interests whatsoever, other than
the encumbrance represented by the Monsanto Agreement, the Family Agreements and
as contemplated by this Agreement. The Voting Trustees have the sole right to
take the actions required to be taken by the Voting Trustees under Articles I
and II of this Agreement.



                                       7
<PAGE>

                                   ARTICLE V

            REPRESENTATIONS AND WARRANTIES OF THE REGISTERED HOLDERS

         Each Registered Holder hereby represents and warrants to Parent as
follows:

          SECTION 5.1 Authority Relative to This Agreement. Such Registered
Holder has all requisite power and authority to execute and deliver this
Agreement, to perform its obligations hereunder and to consummate the
transactions contemplated hereby. This Agreement, the Monsanto Agreement and
each of the Family Agreements has been duly and validly executed and delivered
by such Registered Holder and constitutes a valid and binding obligation of such
Registered Holder, enforceable against such Registered Holder in accordance with
its terms, subject to the effect of any applicable bankruptcy, reorganization,
insolvency, moratorium or other similar laws affecting or relating to the
enforcement of creditors rights generally and to general principles of equity.

         SECTION 5.2 No Conflict. Except for such filings, permits,
authorizations, consents and approvals as may be required under, and other
applicable requirements of, the HSR Act and foreign and supranational laws
relating to antitrust and anticompetition clearances, the execution and delivery
of this Agreement by such Registered Holder does not, and the performance of
this Agreement by such Registered Holder will not, result in any breach of or
constitute a default (or an event that with notice or lapse of time or both
would become a default) under, or give to others any rights of termination,
amendment, acceleration or cancellation of, or result in the creation of a lien
or encumbrance on any of the Subject Shares pursuant to, the Family Agreements,
the Monsanto Agreement or any note, bond, mortgage, indenture, contract,
agreement, lease, instrument, license, permit, franchise, judgment, order,
decree, statute, law, rule or regulation applicable to such Registered Holder or
by which such Registered Holder or the Subject Shares or the Trust Certificates
with respect thereto are bound or affected the effect of which, in any case,
would be to prevent or delay in any material respect the ability of such
Registered Holder to comply with the terms hereof.

         SECTION 5.3 The Subject Shares. Such Registered Holder is the
beneficial owner of, and the record holder of Trust Certificates with respect
to, the number of Subject Shares set forth opposite such Registered Holder's
name on Schedule II hereto (and, except as provided in Section 3.1(d), is
neither the record nor beneficial owner of any other shares of Voting Common
Stock or Trust Certificates), free and clear of any claims, liens, encumbrances
and security interests whatsoever, other than the encumbrance represented by the
Monsanto Agreement, the Family Agreements and as contemplated by this Agreement.



                                       8
<PAGE>

                                   ARTICLE VI

                    REPRESENTATIONS AND WARRANTIES OF PARENT

         Parent hereby represents and warrants to the Voting Trustees and the
Registered Holders as follows:

         SECTION 6.1 Authority Relative to This Agreement. Parent has all
requisite corporate power and authority to execute and deliver this Agreement,
to perform its obligations hereunder and to consummate the transactions
contemplated hereby. This Agreement has been duly and validly executed and
delivered by Parent and constitutes a valid and binding obligation of Parent,
enforceable against Parent in accordance with its terms, subject to the effect
of any applicable bankruptcy, reorganization, insolvency, moratorium or other
similar laws affecting or relating to the enforcement of creditors rights
generally and to general principles of equity.

         SECTION 6.2 No Conflict. Except for such filings, permits,
authorizations, consents and approvals as may be required under, and other
applicable requirements of, the HSR Act and foreign and supranational laws
relating to antitrust and anticompetition clearances and compliance with the
requirements of any federal or state securities laws applicable to the Offer,
the execution and delivery of this Agreement by Parent does not, and the
performance of this Agreement by Parent will not, (a) conflict with or violate
the certificate of incorporation, bylaws or other similar organizational
documents of Parent or (b) result in any breach of or constitute a default (or
an event that with notice or lapse of time or both would become a default)
under, or give to others any rights of termination, amendment, acceleration or
cancellation of, or result in the creation of a lien or encumbrance on any
property or asset of Parent pursuant to, any note, bond, mortgage, indenture,
contract, agreement, lease, instrument, license, permit, franchise, judgment,
order or decree, or, to the best knowledge of Parent, any statute, law, rule or
regulation applicable to Parent or by which Parent or any property or asset of
Parent is bound or affected the effect of which, in any case, would be to
prevent or delay in any material respect the ability of Parent to comply with
the terms hereof.

         SECTION 6.3 Securities Law Compliance. Neither Parent nor Sub will
effect any offer or sale of Subject Shares which offer or sale would cause any
Registered Holder or Voting Trustee to violate the registration requirements of
the Securities Act of 1933, as amended, or the registration or qualification
requirements of the securities laws of any other jurisdiction.



                                       9
<PAGE>

                                   ARTICLE VII

                                   TERMINATION

         SECTION 7.1 Termination of Agreement. This Agreement shall terminate
immediately upon the Effective Time (as defined in the Merger Agreement). This
Agreement may be terminated:

               (a) by mutual written consent of Parent and a majority of the
          Voting Trustees, on behalf the Voting Trustees and the Registered
          Holders;

               (b) by Parent if:

                    (i) the Merger Agreement shall have been terminated in
               accordance with Section 9.1 thereof; or

                    (ii) at the time of termination of this Agreement by Parent
               (A) any of the representations and warranties of the Voting
               Trustees or the Registered Holders set forth in this Agreement
               shall not be true and correct in all material respects or (B) any
               of the Voting Trustees or the Registered Holders shall have
               failed to perform in any material respect any material covenant
               to be performed by any Voting Trustee or Registered Holder under
               this Agreement, and in the case of (A) or (B) such untruth or
               incorrectness or such failure cannot be or has not been cured
               within thirty (30) days after the giving of written notice to the
               Voting Trustees and the Registered Holders by Parent.

               (c) by a majority of the Voting Trustees, on behalf of the Voting
          Trustees and the Registered Holders, if none of the Voting Trustees or
          Registered Holders are in violation of their respective obligations
          under this Agreement and if:

                    (i) Parent or Sub shall not have completed payment for all
               Company Common Shares tendered pursuant to the Offer and not
               withdrawn by the Outside Date;

                    (ii) at the time of termination of this Agreement by the
               Voting Trustees (A) any of the representations and warranties of
               Parent set forth in this Agreement shall not be true and correct
               in all material respects or (B) Parent shall have failed to
               perform in any material respect any material covenant to be
               performed by Parent under this Agreement, and in the case of (A)
               or (B) such untruth or incorrectness or such failure cannot be or
               has not been cured within thirty (30) days after the giving of
               written notice to Parent by any Voting Trustee;

                    (iii) any Governmental Entity (as defined in the Merger
               Agreement) shall have issued an order, decree or ruling or taken
               any other action


                                       10
<PAGE>

               permanently restraining, enjoining or otherwise prohibiting the
               Offer or the consummation of the transactions contemplated hereby
               or by the Merger Agreement and such order, decree, ruling or
               other action shall have become final and nonappealable; provided
               that the Voting Trustees shall not have the right to terminate
               this Agreement pursuant to this clause (iii) if the Company has
               not taken such action as is necessary to comply with Section 7.16
               of the Merger Agreement; or

                    (iv) the Merger Agreement shall have been terminated in
               accordance with Section 9.1 thereof.

         SECTION 7.2 No Effect of Termination of Merger Agreement. Except as
provided in Section 7.1(b)(i) or Section 7.1(c)(iv), the termination of the
Merger Agreement shall have no effect on the obligations of the parties hereto.

         SECTION 7.3 Effect of Termination. In the event of termination of this
Agreement pursuant to Section 7.1, this Agreement shall become void and of no
effect with no liability on the part of any party hereto; provided, however, no
such termination shall relieve any party hereto from any liability for any
breach of this Agreement occurring prior to such termination.

                                  ARTICLE VIII

                                  MISCELLANEOUS

         SECTION 8.1 No Solicitation. During the term of this Agreement, the
Voting Trustees and Registered Holders shall not, nor shall they permit any of
their affiliates or any director, officer, employee, investment banker, attorney
or other advisor or representative of any of the foregoing to, (a) directly or
indirectly, solicit, initiate or knowingly encourage (including by way of
furnishing non-public information) the submission of (i) any inquiry, proposal
or offer from any person relating to any direct or indirect acquisition or
purchase of any of the assets of the Company or its Subsidiaries (as such term
is defined in the Merger Agreement) (other than the purchase of inventory or
other assets in the ordinary course of the Company's business) or any of the
Company Common Shares then outstanding, any tender offer or exchange offer for
any of the Company Common Shares then outstanding, or any merger, consolidation,
business combination, recapitalization, liquidation, dissolution or similar
transaction involving the Company or any of its Subsidiaries, other than the
transactions contemplated by the Merger Agreement, or (ii) any other transaction
the consummation of which would reasonably be expected to impede, interfere
with, prevent or materially delay the purchase of Company Common Shares pursuant
to the Offer and/or the Merger or which would reasonably be expected to dilute
materially the benefits to Parent of the transactions contemplated by this
Agreement and the Merger Agreement ("Takeover Proposal") or (b) directly or
indirectly participate in any discussions or negotiations regarding, or furnish
to any person any information with respect to, or knowingly take any other
action to facilitate any inquiries or the making of any proposal that 
constitutes, or could


                                       11
<PAGE>

reasonably be expected to lead to, any Takeover Proposal. Notwithstanding the
foregoing, proposals solely relating to the sale of all or a portion of the
Company's business relating solely to the research and development of swine
breeding stock and the marketing of such hybrid breeding swine and related
management services to hog producers in domestic or international markets shall
not be considered Takeover Proposals, so long as the terms and conditions of
such proposals do not have any of the effects described in clause (ii) of the
preceding sentence.

         SECTION 8.2 Voting Trustee and Registered Holder Capacity. By executing
this Agreement no person who is or becomes during the term hereof a director or
officer of the Company makes any agreement or understanding in his or her
capacity as such officer or director. Each Voting Trustee and Registered Holder
signs solely in his or her capacity as the record holder and beneficial owner,
respectively, of the number of Subject Shares set forth opposite his or her name
on Schedules I and II hereto, respectively, and nothing herein shall limit or
affect any actions taken by a Voting Trustee or Registered Holder in his or her
capacity as an officer or director of the Company. Nothing in this Section 8.2
shall be construed to permit any party hereto to take any action which would
violate any provision of the Merger Agreement.

         SECTION 8.3 Enforcement of Agreement. The parties hereto agree that
irreparable damage would occur in the event that any of the provisions of this
Agreement were not performed in accordance with their specific terms or were
otherwise breached and that monetary damages will not provide an adequate
remedy. It is accordingly agreed that the parties shall be entitled to an
injunction or injunctions to prevent breaches of this Agreement and to specific
performance of the terms and provisions hereof in addition to any other remedy
to which they are entitled at law or in equity. In addition, each of the parties
hereto (i) consents to submit itself to the personal jurisdiction of any Federal
or state court located in the State of Delaware in the event any dispute arises
out of this Agreement or any of the transactions contemplated by this Agreement;
(ii) agrees that it will not attempt to deny or defeat such personal
jurisdiction by motion or other request for leave from any such court and (iii)
agrees that it will not bring any action relating to this Agreement or any of
the transactions contemplated by this Agreement in any court other than a
Federal or state court sitting in the State of Delaware, and appoints The
Corporation Trust Company, The Corporation Trust Center, 1209 Orange Street,
Wilmington, Delaware as its agent for service of process in connection with this
Agreement.

         SECTION 8.4 Successors and Assigns. This Agreement shall inure to the
benefit of and shall be binding upon the parties hereto and their respective
heirs, legal representatives, successors and assigns. Each Voting Trustee and
each Registered Holder specifically agrees that the obligations of such Voting
Trustee and/or Registered Holder hereunder shall not be terminated by operation
of law, whether by the death or incapacity of the Voting Trustee and/or
Registered Holder or otherwise.


                                       12
<PAGE>

         SECTION 8.5 Entire Agreement. This Agreement constitutes the entire
agreement between Parent, the Voting Trustees and the Registered Holders with
respect to the subject matter hereof.

         SECTION 8.6 Amendment. This Agreement may not be amended except by an
instrument in writing signed by Parent and a majority of the Voting Trustees.

         SECTION 8.7 Extension; Waiver. A majority of the Voting Trustees, on
behalf of the Voting Trustees and Registered Holders, or Parent may, by a
writing signed by such Voting Trustees or Parent, (i) extend the time to perform
any obligation or other act of the other, (ii) waive any inaccuracy in any
representation or warranty of the other or (iii) waive compliance by the other
with any agreement or condition in this Agreement. The failure of any party
hereto to assert any right under this Agreement shall not constitute a waiver of
such right.

         SECTION 8.8 Further Assurances. Each of the Voting Trustees and
Registered Holders shall upon the request of Parent execute and deliver any
additional documents and take such further actions as may reasonably be deemed
by Parent to be necessary or desirable to carry out the provisions hereof.

         SECTION 8.9 Expenses. All fees and expenses incurred by any one party
hereto shall be borne by the party incurring such fees and expenses.

         SECTION 8.10 Severability. If any term or other provision of this
Agreement is invalid, illegal or incapable of being enforced by any rule of law,
or public policy, all other conditions and provisions of this Agreement shall
nevertheless remain in full force and effect. Upon such determination that any
term or other provision is invalid, illegal or incapable of being enforced, the
parties hereto shall negotiate in good faith to modify this Agreement so as to
effect the original intent of the parties as closely as possible to the fullest
extent permitted by applicable law in a mutually acceptable manner in order that
the terms of this Agreement remain as originally contemplated to the fullest
extent possible.

         SECTION 8.11 Notices. All notices and other communications given or
made pursuant hereto shall be in writing and shall be deemed to have been duly
given or made and shall be effective upon receipt, if delivered personally or
sent by overnight courier (providing proof of delivery) to the parties at the
following addresses (or at such other address for a party as shall be specified
by like notice) or electronically transmitted (provided that a confirmation copy
is sent by another approved means) to the facsimile number specified below:



                                       13
<PAGE>

         If to any Voting Trustee or Registered Holder:

         c/o Douglas C. Roberts
         DeKalb Genetics Corporation
         3100 Sycamore Road

         DeKalb, IL 60115

         Attention:        [name of Voting Trustee or Registered Holder]
         Telephone:        (815) 758-9195
         Facsimile:        (815) 758-9403

         with a copy to:

         Pillsbury Madison & Sutro LLP
         235 Montgomery Street
         San Francisco, CA 94104
         Attention:        Blair W. White, Esq.
         Telephone:        (415) 983-7480
         Facsimile:        (415) 983-1200

         If to Parent, at:

         Monsanto Company
         700 Chesterfield Parkway N BB3N
         St. Louis, MO 63198
         Attention:        Robert T. Fraley, Ph.D.
         Telephone:        (314) 737-6204
         Facsimile:        (314) 737-7037

         with copies to:

         Monsanto Company
         800 N. Lindbergh Blvd.
         E2ND
         St. Louis, MO 63167

         Attention:        Barbara Blackford, Esq.
         Telephone:        (314) 694-2860
         Facsimile:        (314) 694-2594



                                       14
<PAGE>

         and

         Wachtell, Lipton, Rosen & Katz
         51 West 52nd Street
         New York, NY 10019-6150

         Attention:        Richard D. Katcher, Esq.
                           David M. Silk, Esq.

         Telephone:        (212) 403-1000
         Facsimile:        (212) 403-2000

         SECTION 8.12 Governing Law. This Agreement shall be governed by, and
construed in accordance with, the laws of the State of Delaware regardless of
the laws that might otherwise govern under applicable principles of conflicts of
law.

         SECTION 8.13 Definition. The term "Monsanto Agreement" means that
certain Stockholders Agreement, dated as of January 31, 1996, among Monsanto
Company and the Registered Holders.

         IN WITNESS WHEREOF, each of the parties hereto have caused this
Agreement to be duly executed on the date hereof.

                                     MONSANTO COMPANY

                                     

                                     By:/s/ Derek K. Rapp               
                                        ------------------------------------

                                     Name:  Derek K. Rapp                  

                                     Title: Director, Mergers & Acquisitions



                                     DOUGLAS C. ROBERTS



                                     
                                     ----------------------------------------
                                     Douglas C. Roberts, individually and as
                                     Voting Trustee under the Voting Trust
                                     Agreement and as Trustee of (i) the
                                     Douglas C. Roberts Trust dated 1/28/72,
                                     (ii) the David Kim Roberts 1989 Trust,
                                     (iii) the Steven Suh Roberts 1989 Trust,
                                     and (iv) the Jeffrey King Roberts 1989
                                     Trust




                                       15
<PAGE>
  and

         Wachtell, Lipton, Rosen & Katz
         51 West 52nd Street
         New York, NY 10019-6150

         Attention:        Richard D. Katcher, Esq.
                           David M. Silk, Esq.

         Telephone:        (212) 403-1000
         Facsimile:        (212) 403-2000

         SECTION 8.12 Governing Law. This Agreement shall be governed by, and
construed in accordance with, the laws of the State of Delaware regardless of
the laws that might otherwise govern under applicable principles of conflicts of
law.

         SECTION 8.13 Definition. The term "Monsanto Agreement" means that
certain Stockholders Agreement, dated as of January 31, 1996, among Monsanto
Company and the Registered Holders.

         IN WITNESS WHEREOF, each of the parties hereto have caused this
Agreement to be duly executed on the date hereof.

                                     MONSANTO COMPANY

                                     

                                     By:
                                            ------------------------------------

                                     Name:  ------------------------------------

                                     Title: ------------------------------------



                                     DOUGLAS C. ROBERTS



                                     /s/ Douglas C. Roberts                  
                                     ----------------------------------------
                                     Douglas C. Roberts, individually and as
                                     Voting Trustee under the Voting Trust
                                     Agreement and as Trustee of (i) the
                                     Douglas C. Roberts Trust dated 1/28/72,
                                     (ii) the David Kim Roberts 1989 Trust,
                                     (iii) the Steven Suh Roberts 1989 Trust,
                                     and (iv) the Jeffrey King Roberts 1989
                                     Trust




                                       15
<PAGE>

                                     VIRGINIA R. HOLT


                                     /s/ Virginia R. Holt                  
                                     --------------------------------------
                                     Virginia R. Holt, individually and as
                                     Voting Trustee under the Voting Trust
                                     Agreement and as Trustee of (i) the
                                     Virginia R. Holt Trust dated 8/22/73,
                                     (ii) the Amanda Mary Holt 1989 Trust,
                                     (iii) the Laura Elizabeth Holt 1989
                                     Trust, (iv) the Jenna Christine Holt
                                     1997 Trust dated 7/23/97 and (v) the
                                     John Douglas Holt 1997 Trust dated
                                     7/23/97


                                     JOHN T. ROBERTS


                                     /s/ John T. Roberts                   
                                     --------------------------------------
                                     John T. Roberts, individually and as
                                     Voting Trustee under the Voting Trust
                                     Agreement and as Trustee of (i) the
                                     John T. Roberts Trust dated 4/9/76,
                                     (ii) the Allison Elizabeth Roberts
                                     1989 Trust, and (iii) the Katherine
                                     Elsie Roberts 1990 Trust #1


                                     ROBIN R. ROBERTS


                                     
                                     --------------------------------------
                                     Robin R. Roberts, individually and as
                                     Trustee of (i) the Allison Elizabeth
                                     Roberts Trust dated 8/6/86, (ii) the
                                     Katherine Elsie Roberts Trust dated
                                     3/13/90, (iii) the Charles David
                                     Roberts Trust dated 2/28/94, and (iv)
                                     the John T. Roberts 1998 Annuity Trust
                                     dated 2/9/98


                                       16

<PAGE>

                                     VIRGINIA R. HOLT


                                     
                                     --------------------------------------
                                     Virginia R. Holt, individually and as
                                     Voting Trustee under the Voting Trust
                                     Agreement and as Trustee of (i) the
                                     Virginia R. Holt Trust dated 8/22/73,
                                     (ii) the Amanda Mary Holt 1989 Trust,
                                     (iii) the Laura Elizabeth Holt 1989
                                     Trust, (iv) the Jenna Christine Holt
                                     1997 Trust dated 7/23/97 and (v) the
                                     John Douglas Holt 1997 Trust dated
                                     7/23/97


                                     JOHN T. ROBERTS


                                     
                                     --------------------------------------
                                     John T. Roberts, individually and as
                                     Voting Trustee under the Voting Trust
                                     Agreement and as Trustee of (i) the
                                     John T. Roberts Trust dated 4/9/76,
                                     (ii) the Allison Elizabeth Roberts
                                     1989 Trust, and (iii) the Katherine
                                     Elsie Roberts 1990 Trust #1


                                     ROBIN R. ROBERTS


                                     /s/ Robin R. Roberts                  
                                     --------------------------------------
                                     Robin R. Roberts, individually and as
                                     Trustee of (i) the Allison Elizabeth
                                     Roberts Trust dated 8/6/86, (ii) the
                                     Katherine Elsie Roberts Trust dated
                                     3/13/90, (iii) the Charles David
                                     Roberts Trust dated 2/28/94, and (iv)
                                     the John T. Roberts 1998 Annuity Trust
                                     dated 2/9/98


                                       16
<PAGE>

                                     TERRANCE K. HOLT


                                     /s/ Terrance K. Holt                       
                                     -------------------------------------------
                                     Terrance K. Holt, individually and as 
                                     Trustee of (i) the Amanda Mary Holt Trust
                                     dated 12/6/85 and (ii) the Virginia Roberts
                                     Holt 1998 Annuity Trust

                                     CHARLES C. ROBERTS AND MARY R. ROBERTS


                                     
                                     -------------------------------------------


                                     
                                     -------------------------------------------
                                     Charles C. Roberts and Mary R. Roberts, 
                                     individually and as Voting  Trustees  under
                                     the Voting  Trust  Agreement  and as
                                     Trustees  of (i) the Charles C. and Mary
                                     R. Roberts Living Trust dated  10/15/91,  
                                     (ii) the Trust F/B/O  Douglas  C. Roberts 
                                     under Eleanor T. Roberts  Charitable Trust
                                     Agreement dated 12/21/67, (iii) the Trust 
                                     F/B/O Virginia R. Holt under Eleanor  T.  
                                     Roberts   Charitable   Trust   Agreement  
                                     dated 12/21/67,  and (iv) the Trust  F/B/O 
                                     John T.  Roberts  under Eleanor T. Roberts 
                                     Charitable Trust Agreement dated 12/21/67
                                     

                                     LYNNE KING ROBERTS

                                     
                                     
                                     ------------------------------------------
                                     Lynne King Roberts, individually and as 
                                     Trustee of the David Kim Roberts Trust 
                                     dated 10/14/87



                                       17
<PAGE>

                                     TERRANCE K. HOLT


                                      
                                     -------------------------------------------
                                     Terrance K. Holt, individually and as 
                                     Trustee of (i) the Amanda Mary Holt Trust
                                     dated 12/6/85 and (ii) the Virginia Roberts
                                     Holt 1998 Annuity Trust

                                     CHARLES C. ROBERTS AND MARY R. ROBERTS


                                     /s/ Charles C. Roberts                     
                                     -------------------------------------------


                                     /s/ Mary R. Roberts                        
                                     -------------------------------------------
                                     Charles C. Roberts and Mary R. Roberts, 
                                     individually and as Voting  Trustees  under
                                     the Voting  Trust  Agreement  and as
                                     Trustees  of (i) the Charles C. and Mary
                                     R. Roberts Living Trust dated  10/15/91,  
                                     (ii) the Trust F/B/O  Douglas  C. Roberts 
                                     under Eleanor T. Roberts  Charitable Trust
                                     Agreement dated 12/21/67, (iii) the Trust 
                                     F/B/O Virginia R. Holt under Eleanor  T.  
                                     Roberts   Charitable   Trust   Agreement  
                                     dated 12/21/67,  and (iv) the Trust  F/B/O 
                                     John T.  Roberts  under Eleanor T. Roberts 
                                     Charitable Trust Agreement dated 12/21/67
                                     

                                     LYNNE KING ROBERTS

                                     
                                     
                                     ------------------------------------------
                                     Lynne King Roberts, individually and as 
                                     Trustee of the David Kim Roberts Trust 
                                     dated 10/14/87



                                       17
<PAGE>

                                     TERRANCE K. HOLT


                                     
                                     -------------------------------------------
                                     Terrance K. Holt, individually and as 
                                     Trustee of (i) the Amanda Mary Holt Trust
                                     dated 12/6/85 and (ii) the Virginia Roberts
                                     Holt 1998 Annuity Trust

                                     CHARLES C. ROBERTS AND MARY R. ROBERTS


                                      
                                     -------------------------------------------


                                      
                                     -------------------------------------------
                                     Charles C. Roberts and Mary R. Roberts, 
                                     individually and as Voting  Trustees  under
                                     the Voting  Trust  Agreement  and as
                                     Trustees  of (i) the Charles C. and Mary
                                     R. Roberts Living Trust dated  10/15/91,  
                                     (ii) the Trust F/B/O  Douglas  C. Roberts 
                                     under Eleanor T. Roberts  Charitable Trust
                                     Agreement dated 12/21/67, (iii) the Trust 
                                     F/B/O Virginia R. Holt under Eleanor  T.  
                                     Roberts   Charitable   Trust   Agreement  
                                     dated 12/21/67,  and (iv) the Trust  F/B/O 
                                     John T.  Roberts  under Eleanor T. Roberts 
                                     Charitable Trust Agreement dated 12/21/67
                                     

                                     LYNNE KING ROBERTS

                                     
                                     /s/ Lynne King Roberts                    
                                     ------------------------------------------
                                     Lynne King Roberts, individually and as 
                                     Trustee of the David Kim Roberts Trust 
                                     dated 10/14/87



                                       17
<PAGE>

                                    EXHIBIT A

                      ROBERTS FAMILY VOTING TRUST AGREEMENT

                        VOTING AND TENDERING INSTRUCTIONS

TO:  Charles C. Roberts, Mary R. Roberts, Douglas C. Roberts, Virginia R. Holt 
     and John T. Roberts, as Voting Trustees (and any successor or additional 
     voting trustees) under the Roberts Family Voting Trust Agreement dated as 
     of January 31, 1996 (the "Voting Trust Agreement")

         Pursuant to Sections 5 and 7 of the Voting Trust Agreement, you are
hereby instructed as follows with respect to all shares of Class A Common Stock
of DEKALB Genetics Corporation (the "Company") held by you on behalf of the
undersigned on the date hereof under the Voting Trust Agreement (the "Subject
Shares"): (a) at any duly noticed meeting of the stockholders of the Company
called to vote upon the Merger Agreement, dated as of the date hereof, by and
among the Company, Monsanto Company and Corn Acquisition Corporation (the
"Merger Agreement") and the transactions contemplated thereby or at any
adjournment thereof or in any other circumstances under which a vote, consent or
approval (including by written consent) with respect to the Merger Agreement and
the transactions contemplated thereby is sought, to vote all of the Subject
Shares in favor of the approval and adoption of the Merger Agreement and the
transactions contemplated thereby; (b) to be present (in person or by proxy) at
any duly noticed meeting of stockholders of the Company or any adjournment
thereof or in any other circumstances under which the vote, consent or other
approval of the stockholders of the Company is sought with respect to any
Business Combination (as defined in the Stockholders Agreement (as defined
below)) other than the Merger (as defined in the Merger Agreement) and to vote
(or cause to be voted) all of the Subject Shares against any such Business
Combination; and (c) to tender as soon as practicable (and in any event not
later than two business days prior to the first scheduled expiration date of the
Offer (as defined in the Merger Agreement)) all of the Subject Shares pursuant
to the Offer and not to withdraw such tender of the Subject Shares.

         These Instructions are the instructions of the undersigned referred to
in Sections 1.1 and 2.2 of the Stockholders Agreement, dated as of the date
hereof (the "Stockholders


                                       18
<PAGE>

Agreement"), among Monsanto Company, the undersigned, the other holders of trust
certificates under the Voting Trust Agreement and the Voting Trustees under the
Voting Trust Agreement.

         These instructions are irrevocable and are binding upon the successors
and assigns of the undersigned.

         Dated:  May 8, 1998.



                                              --------------------------------
                                                 [name of Registered Holder]
                                                      [signing capacity]



                                       19
<PAGE>

                                    EXHIBIT B

                                IRREVOCABLE PROXY

                                     to Vote

                              CLASS A COMMON STOCK

                                       of

                           DEKALB GENETICS CORPORATION

         The undersigned are the Voting Trustees under the Roberts Family Voting
Trust Agreement, dated as of January 31, 1996 (the "Voting Trust Agreement"),
and as such are the record owners of shares of Class A Common Stock of DEKALB
Genetics Corporation, a Delaware corporation (the "Company"). The undersigned,
in their capacities as such Voting Trustees, hereby irrevocably (to the fullest
extent permitted by the General Corporation Law of the State of Delaware),
appoint R. William Ide, III, Hendrick A. Verfaillie and the members of the Board
of Directors of Monsanto Company, a Delaware corporation ("Parent"), and each of
them, as the sole and exclusive attorneys and proxies of the undersigned, with
full power of substitution and resubstitution, to vote and exercise all voting
and related rights (to the full extent that the undersigned is entitled to do
so) with respect to all of the Subject Shares (as such term is defined in the
Stockholders Agreement (as defined below)) in accordance with the terms of this
Proxy. Upon the execution of this Proxy by the undersigned, any and all prior
proxies given by the undersigned with respect to any Subject Shares are hereby
revoked and the undersigned agree not to grant any subsequent proxies with
respect to the Subject Shares until after the Expiration Date (as defined
below).

         This Proxy is irrevocable and coupled with an interest, is granted
pursuant to that certain Stockholders Agreement, dated as of the date hereof,
among Parent, the undersigned and the Registered Holders named therein (the
"Stockholders Agreement"), and is granted in consideration of the Company, Corn
Acquisition Corporation, a Delaware corporation ("Sub"), and Parent entering
into that certain Agreement and Plan of Merger, dated as of the date hereof (the
"Merger Agreement"). The Merger Agreement provides, among other things, for the
merger (the "Merger") of Sub with and into the Company, with the Company
becoming a wholly-owned subsidiary of Parent, all in accordance with the terms
of the Merger Agreement. As used herein, the term "Expiration Date" shall mean
the earlier to occur of (i) the termination of the Stockholders Agreement in
accordance with its terms, or (ii) such date and time as the Merger shall have
become effective in accordance with the terms and provisions of the Merger
Agreement.

         The attorneys and proxies named above, and each of them, are hereby
authorized and empowered by the undersigned stockholders, at any time prior to
the Expiration Date, to act as the attorney and proxy of the undersigned to vote
the Subject Shares (including, without

                                       20
<PAGE>

limitation, the power to execute and deliver written consents) at every annual,
special or adjourned meeting of the stockholders of the Company and in every
written consent in lieu of such meeting and in any other circumstances under
which a vote, consent or approval (including by written consent) of the
stockholders of the Company is sought: (a) in favor of the adoption of the
Merger Agreement and the transactions contemplated by the Merger Agreement; (b)
against any action, proposal or agreement that could reasonably be expected to
result in a breach in any material respect of any covenant, representation or
warranty or any other obligation of the Company under the Merger Agreement, or
which could reasonably be expected to result in any of the conditions set forth
in Article VIII or Exhibit A of the Merger Agreement not being fulfilled; (c)
against any Business Combination (as defined in the Stockholders Agreement) or
any Takeover Proposal (as defined in the Merger Agreement), in either case other
than the Merger, the Merger Agreement and the transactions contemplated thereby;
and (d) against (i) any other extraordinary corporate transaction other than the
Merger, the Merger Agreement and the transactions contemplated thereby, such as
a merger, consolidation, business combination, reorganization, recapitalization
or liquidation involving the Company or any of its subsidiaries, or a sale or
transfer of a material amount of the assets of the Company or any of its
subsidiaries or (ii) any other proposal or transaction not covered by the
foregoing which would in any manner impede, frustrate, prevent, delay or nullify
the Merger, the Merger Agreement or the transactions contemplated thereby. The
attorneys and proxies named above may not exercise this Proxy on any other
matter except as provided in clauses (a), (b), (c) and (d) above.

         Any obligation of the undersigned hereunder shall be binding upon the
successors and assigns of the undersigned.

                                 Dated:  May 8, 1998




                                 ----------------------------------------------
                                 Douglas C. Roberts, as Voting Trustee under the
                                             Voting Trust Agreement



                                ----------------------------------------------
                                 John T. Roberts, as Voting Trustee under the
                                             Voting Trust Agreement



                                ----------------------------------------------
                                 Virginia R. Holt, as Voting Trustee under the
                                             Voting Trust Agreement



                                       21
<PAGE>

                                ----------------------------------------------
                                 Mary R. Roberts, as Voting Trustee under the
                                             Voting Trust Agreement



                                ----------------------------------------------
                                 Charles C. Roberts, as Voting Trustee under the
                                             Voting Trust Agreement


                                       22
<PAGE>

                                   SCHEDULE I

                   Record Holder                 Shares of Class A Common Stock

Douglas C. Roberts, Virginia R. Holt,                       2,671,650
John T. Roberts, Charles C. Roberts & 
Mary R. Roberts as Voting Trustees of the 
Roberts Family Voting TR Agmt 1/31/96.


                                       23
<PAGE>

                                   SCHEDULE II

             Registered Holder                   Shares of Class A Common Stock

Douglas C. Roberts, as Trustee of the                       700,614
Douglas C. Roberts Trust dated 1/28/72

Douglas C. Roberts, as Trustee of the                        42,000
David Kim Roberts 1989 Trust

Douglas C. Roberts, as Trustee of the                        42,000
Steven Suh Roberts 1989 Trust

Douglas C. Roberts, as Trustee of the                        42,000
Jeffrey King Roberts 1989 Trust

Virginia R. Holt, as Trustee of the                         417,032
Virginia R. Holt Trust dated 8/22/73

Virginia R. Holt, as Trustee of the                          42,000
Amanda Mary Holt 1989 Trust

Virginia R. Holt, as Trustee of the                          42,000
Amanda Mary Holt 1989 Trust

John T. Roberts, as Trustee of the                          534,484
John T. Roberts Trust dated 4/9/76

John T. Roberts, as Trustee of the                           42,000
Allison Elizabeth Roberts 1989 Trust

John T. Roberts, as Trustee of the                           42,000
Katherine Elsie Roberts 1990 Trust #1

Robin R. Roberts, as Trustee of the                          22,434
Allison Elizabeth Roberts Trust dated 8/6/86

Robin R. Roberts, as Trustee of the                           2,880
Katherine Elsie Roberts Trust dated 3/13/90

Robin R. Roberts, as Trustee of the                           2,880
Charles David Roberts Trust dated 2/28/94

                                       24
<PAGE>

Terrance K. Holt, as Trustee of the                          21,588
Amanda Mary Holt Trust dated 12/6/85

Charles C. Roberts and Mary R. Roberts, as Trustees          48,082
of the Charles C. and Mary R. Roberts Living Trust
dated 10/15/91

Charles C. Roberts and Mary R. Roberts,                      34,002
as Trustees of the Trust F/B/O Douglas C. 
Roberts under Eleanor T. Roberts 
Charitable Trust Agreement dated 12/21/67

Charles C. Roberts and Mary R. Roberts,                      22,704
as Trustees of the Trust F/B/O Virginia R. 
Holt under Eleanor T. Roberts Charitable 
Trust Agreement dated 12/21/67

Charles C. Roberts and Mary R. Roberts,                      23,646
as Trustees of the Trust F/B/O John T. 
Roberts under Eleanor T. Roberts 
Charitable Trust Agreement dated 
12/21/67

Lynne King Roberts, as Trustee of the                         9,708
David Kim Roberts Trust dated 10/14/87

Virginia R. Holt, as Trustee of the Jenna                     6,298
Christine Holt 1997 Trust dated 7/23/97

Virginia R. Holt, as Trustee of the John                      6,298
Douglas Holt 1997 Trust dated 7/23/97

Terrance K. Holt, as Trustee of the                         325,000
Virginia Roberts Holt 1998 Annuity Trust

Robin Richey Roberts, as Trustee of the                     200,000
John T. Roberts 1998 Annuity Trust dated 
2/9/98

                                       25
<PAGE>

                                  SCHEDULE III

                                                                Shares of
                                                          Class A Common Stock
                               Name                        Underlying Options

                        Douglas C. Roberts                        36,000

                        Virginia R. Holt                          16,247

                        John T. Roberts                           48,133

                                       26
<PAGE>

                      ROBERTS FAMILY VOTING TRUST AGREEMENT


                        VOTING AND TENDERING INSTRUCTIONS


TO: Charles C. Roberts, Mary R. Roberts, Douglas C. Roberts, Virginia R. Holt 
    and John T. Roberts, as Voting Trustees (and any successor or additional 
    voting trustees) under the Roberts Family Voting Trust Agreement dated as of
    January 31, 1996 (the "Voting Trust Agreement")

         Pursuant to Sections 5 and 7 of the Voting Trust Agreement, you are
hereby instructed as follows with respect to all shares of Class A Common Stock
of DEKALB Genetics Corporation (the "Company") held by you on behalf of the
undersigned on the date hereof under the Voting Trust Agreement (the "Subject
Shares"): (a) at any duly noticed meeting of the stockholders of the Company
called to vote upon the Merger Agreement, dated as of the date hereof, by and
among the Company, Monsanto Company and Corn Acquisition Corporation (the
"Merger Agreement") and the transactions contemplated thereby or at any
adjournment thereof or in any other circumstances under which a vote, consent or
approval (including by written consent) with respect to the Merger Agreement and
the transactions contemplated thereby is sought, to vote all of the Subject
Shares in favor of the approval and adoption of the Merger Agreement and the
transactions contemplated thereby; (b) to be present (in person or by proxy) at
any duly noticed meeting of stockholders of the Company or any adjournment
thereof or in any other circumstances under which the vote, consent or other
approval of the stockholders of the Company is sought with respect to any
Business Combination (as defined in the Stockholders Agreement (as defined
below)) other than the Merger (as defined in the Merger Agreement) and to vote
(or cause to be voted) all of the Subject Shares against any such Business
Combination; and (c) to tender as soon as practicable (and in any event not
later than two business days prior to the first scheduled expiration date of the
Offer (as defined in the Merger Agreement)) all of the Subject Shares pursuant
to the Offer and not to withdraw such tender of the Subject Shares.

         These Instructions are the instructions of the undersigned referred to
in Sections 1.1 and 2.2 of the Stockholders Agreement, dated as of the date
hereof (the "Stockholders


<PAGE>

Agreement"), among Monsanto Company, the undersigned, the other holders of trust
certificates under the Voting Trust Agreement and the Voting Trustees under the
Voting Trust Agreement.

         These instructions are irrevocable and are binding upon the successors
and assigns of the undersigned.

         Dated:  May 8, 1998.

                              DOUGLAS C. ROBERTS


                              /s/ Douglas C. Roberts
                              --------------------------------------------------
                              Douglas C. Roberts, individually and as Voting
                              Trustee under the Voting Trust Agreement and as
                              Trustee of (i) the Douglas C. Roberts Trust dated
                              1/28/72, (ii) the David Kim Roberts 1989 Trust,
                              (iii) the Steven Suh Roberts 1989 Trust, and (iv)
                              the Jeffrey King Roberts 1989 Trust

                                       2
<PAGE>


                      ROBERTS FAMILY VOTING TRUST AGREEMENT

                        VOTING AND TENDERING INSTRUCTIONS


TO: Charles C. Roberts, Mary R. Roberts, Douglas C. Roberts, Virginia R. Holt 
    and John T. Roberts, as Voting Trustees (and any successor or additional 
    voting trustees) under the Roberts Family Voting Trust Agreement dated as of
    January 31, 1996 (the "Voting Trust Agreement")

         Pursuant to Sections 5 and 7 of the Voting Trust Agreement, you are
hereby instructed as follows with respect to all shares of Class A Common Stock
of DEKALB Genetics Corporation (the "Company") held by you on behalf of the
undersigned on the date hereof under the Voting Trust Agreement (the "Subject
Shares"): (a) at any duly noticed meeting of the stockholders of the Company
called to vote upon the Merger Agreement, dated as of the date hereof, by and
among the Company, Monsanto Company and Corn Acquisition Corporation (the
"Merger Agreement") and the transactions contemplated thereby or at any
adjournment thereof or in any other circumstances under which a vote, consent or
approval (including by written consent) with respect to the Merger Agreement and
the transactions contemplated thereby is sought, to vote all of the Subject
Shares in favor of the approval and adoption of the Merger Agreement and the
transactions contemplated thereby; (b) to be present (in person or by proxy) at
any duly noticed meeting of stockholders of the Company or any adjournment
thereof or in any other circumstances under which the vote, consent or other
approval of the stockholders of the Company is sought with respect to any
Business Combination (as defined in the Stockholders Agreement (as defined
below)) other than the Merger (as defined in the Merger Agreement) and to vote
(or cause to be voted) all of the Subject Shares against any such Business
Combination; and (c) to tender as soon as practicable (and in any event not
later than two business days prior to the first scheduled expiration date of the
Offer (as defined in the Merger Agreement)) all of the Subject Shares pursuant
to the Offer and not to withdraw such tender of the Subject Shares.

         These Instructions are the instructions of the undersigned referred to
in Sections 1.1 and 2.2 of the Stockholders Agreement, dated as of the date
hereof (the "Stockholders




<PAGE>



Agreement"), among Monsanto Company, the undersigned, the other holders of trust
certificates under theVoting Trust Agreement and the Voting Trustees under the
Voting Trust Agreement.

         These instructions are irrevocable and are binding upon the successors
and assigns of the undersigned.

         Dated:  May 8, 1998.


                            LYNNE KING ROBERTS



                            /s/ Lynne King Roberts                         
                            -----------------------------------------------
                            Lynne King Roberts, individually and as Trustee 
                            of the David Kim Roberts Trust dated 10/14/87



                                       2
<PAGE>

                      ROBERTS FAMILY VOTING TRUST AGREEMENT

                        VOTING AND TENDERING INSTRUCTIONS


TO:  Charles C. Roberts, Mary R. Roberts, Douglas C. Roberts, Virginia R. Holt 
     and John T. Roberts, as Voting Trustees (and any successor or additional 
     voting trustees) under the Roberts Family Voting Trust Agreement dated as 
     of January 31, 1996 (the "Voting Trust Agreement")

         Pursuant to Sections 5 and 7 of the Voting Trust Agreement, you are
hereby instructed as follows with respect to all shares of Class A Common Stock
of DEKALB Genetics Corporation (the "Company") held by you on behalf of the
undersigned on the date hereof under the Voting Trust Agreement (the "Subject
Shares"): (a) at any duly noticed meeting of the stockholders of the Company
called to vote upon the Merger Agreement, dated as of the date hereof, by and
among the Company, Monsanto Company and Corn Acquisition Corporation (the
"Merger Agreement") and the transactions contemplated thereby or at any
adjournment thereof or in any other circumstances under which a vote, consent or
approval (including by written consent) with respect to the Merger Agreement and
the transactions contemplated thereby is sought, to vote all of the Subject
Shares in favor of the approval and adoption of the Merger Agreement and the
transactions contemplated thereby; (b) to be present (in person or by proxy) at
any duly noticed meeting of stockholders of the Company or any adjournment
thereof or in any other circumstances under which the vote, consent or other
approval of the stockholders of the Company is sought with respect to any
Business Combination (as defined in the Stockholders Agreement (as defined
below)) other than the Merger (as defined in the Merger Agreement) and to vote
(or cause to be voted) all of the Subject Shares against any such Business
Combination; and (c) to tender as soon as practicable (and in any event not
later than two business days prior to the first scheduled expiration date of the
Offer (as defined in the Merger Agreement)) all of the Subject Shares pursuant
to the Offer and not to withdraw such tender of the Subject Shares.

         These Instructions are the instructions of the undersigned referred to
in Sections 1.1 and 2.2 of the Stockholders Agreement, dated as of the date
hereof (the "Stockholders


<PAGE>

Agreement"), among Monsanto Company, the undersigned, the other holders of trust
certificates under the Voting Trust Agreement and the Voting Trustees under the
Voting Trust Agreement.

         These instructions are irrevocable and are binding upon the successors
and assigns of the undersigned.

         Dated:  May 8, 1998.

                            JOHN T. ROBERTS



                            /s/ John T. Roberts                                 
                            ----------------------------------------------------
                            John T. Roberts, individually and as Voting 
                            Trustee under the Voting Trust Agreement and as
                            Trustee of (i) the John T. Roberts Trust dated 
                            4/9/76, (ii) the Allison Elizabeth Roberts 1989 
                            Trust, and (iii) the Katherine Elsie Roberts 1990
                            Trust #1

                                       2
<PAGE>

                      ROBERTS FAMILY VOTING TRUST AGREEMENT

                        VOTING AND TENDERING INSTRUCTIONS


TO:  Charles C. Roberts, Mary R. Roberts, Douglas C. Roberts, Virginia R. Holt 
     and John T. Roberts, as Voting Trustees (and any successor or additional 
     voting trustees) under the Roberts Family Voting Trust Agreement dated as  
     of January 31, 1996 (the "Voting Trust Agreement")

         Pursuant to Sections 5 and 7 of the Voting Trust Agreement, you are
hereby instructed as follows with respect to all shares of Class A Common Stock
of DEKALB Genetics Corporation (the "Company") held by you on behalf of the
undersigned on the date hereof under the Voting Trust Agreement (the "Subject
Shares"): (a) at any duly noticed meeting of the stockholders of the Company
called to vote upon the Merger Agreement, dated as of the date hereof, by and
among the Company, Monsanto Company and Corn Acquisition Corporation (the
"Merger Agreement") and the transactions contemplated thereby or at any
adjournment thereof or in any other circumstances under which a vote, consent or
approval (including by written consent) with respect to the Merger Agreement and
the transactions contemplated thereby is sought, to vote all of the Subject
Shares in favor of the approval and adoption of the Merger Agreement and the
transactions contemplated thereby; (b) to be present (in person or by proxy) at
any duly noticed meeting of stockholders of the Company or any adjournment
thereof or in any other circumstances under which the vote, consent or other
approval of the stockholders of the Company is sought with respect to any
Business Combination (as defined in the Stockholders Agreement (as defined
below)) other than the Merger (as defined in the Merger Agreement) and to vote
(or cause to be voted) all of the Subject Shares against any such Business
Combination; and (c) to tender as soon as practicable (and in any event not
later than two business days prior to the first scheduled expiration date of the
Offer (as defined in the Merger Agreement)) all of the Subject Shares pursuant
to the Offer and not to withdraw such tender of the Subject Shares.

         These Instructions are the instructions of the undersigned referred to
in Sections 1.1 and 2.2 of the Stockholders Agreement, dated as of the date
hereof (the "Stockholders




<PAGE>



Agreement"), among Monsanto Company, the undersigned, the other holders of trust
certificates under the Voting Trust Agreement and the Voting Trustees under the
Voting Trust Agreement.

         These instructions are irrevocable and are binding upon the successors
and assigns of the undersigned.

         Dated:  May 8, 1998.

                            ROBIN R. ROBERTS



                            /s/  Robin R. Roberts                               
                            ----------------------------------------------------
                            Robin R. Roberts, individually and as Trustee of 
                            (i) the Allison Elizabeth Roberts Trust dated
                            8/6/86, (ii) the Katherine Elsie Roberts Trust 
                            dated 3/13/90, (iii) the Charles David Roberts 
                            Trust dated 2/28/94, and (iv) the John T. Roberts
                            1998 Annuity Trust dated 2/9/98.




                                       2
<PAGE>

                      ROBERTS FAMILY VOTING TRUST AGREEMENT

                        VOTING AND TENDERING INSTRUCTIONS


TO:  Charles C. Roberts, Mary R. Roberts, Douglas C. Roberts, Virginia R. Holt 
     and John T. Roberts, as Voting Trustees (and any successor or additional 
     voting trustees) under the Roberts Family Voting Trust Agreement dated as 
     of January 31, 1996 (the "Voting Trust Agreement")

         Pursuant to Sections 5 and 7 of the Voting Trust Agreement, you are
hereby instructed as follows with respect to all shares of Class A Common Stock
of DEKALB Genetics Corporation (the "Company") held by you on behalf of the
undersigned on the date hereof under the Voting Trust Agreement (the "Subject
Shares"): (a) at any duly noticed meeting of the stockholders of the Company
called to vote upon the Merger Agreement, dated as of the date hereof, by and
among the Company, Monsanto Company and Corn Acquisition Corporation (the
"Merger Agreement") and the transactions contemplated thereby or at any
adjournment thereof or in any other circumstances under which a vote, consent or
approval (including by written consent) with respect to the Merger Agreement and
the transactions contemplated thereby is sought, to vote all of the Subject
Shares in favor of the approval and adoption of the Merger Agreement and the
transactions contemplated thereby; (b) to be present (in person or by proxy) at
any duly noticed meeting of stockholders of the Company or any adjournment
thereof or in any other circumstances under which the vote, consent or other
approval of the stockholders of the Company is sought with respect to any
Business Combination (as defined in the Stockholders Agreement (as defined
below)) other than the Merger (as defined in the Merger Agreement) and to vote
(or cause to be voted) all of the Subject Shares against any such Business
Combination; and (c) to tender as soon as practicable (and in any event not
later than two business days prior to the first scheduled expiration date of the
Offer (as defined in the Merger Agreement)) all of the Subject Shares pursuant
to the Offer and not to withdraw such tender of the Subject Shares.

         These Instructions are the instructions of the undersigned referred to
in Sections 1.1 and 2.2 of the Stockholders Agreement, dated as of the date
hereof (the "Stockholders 


<PAGE>

Agreement"), among Monsanto Company, the undersigned, the other holders of trust
certificates under the Voting Trust Agreement and the Voting Trustees under the
Voting Trust Agreement.

         These instructions are irrevocable and are binding upon the successors
and assigns of the undersigned.

         Dated:  May 8, 1998.

                            VIRGINIA R. HOLT



                            /s/ Virginia R. Holt                                
                            ----------------------------------------------------
                            Virginia R. Holt, individually and as Voting 
                            Trustee under the Voting Trust Agreement and as
                            Trustee of (i) the Virginia R. Holt Trust dated 
                            8/22/73, (ii) the Amanda Mary Holt 1989 Trust,
                            (iii) the Laura Elizabeth Holt 1989 Trust, (iv) the
                            Jenna Christine Holt 1997 Trust dated 7/23/97 
                            and (v) the John Douglas Holt 1997 Trust dated
                            7/23/97

                                       2
<PAGE>


                      ROBERTS FAMILY VOTING TRUST AGREEMENT


                        VOTING AND TENDERING INSTRUCTIONS


TO:  Charles C. Roberts, Mary R. Roberts, Douglas C. Roberts, Virginia R. Holt 
     and John T. Roberts, as Voting Trustees (and any successor or additional 
     voting trustees) under the Roberts Family Voting Trust Agreement dated as 
     of January 31, 1996 (the "Voting Trust Agreement")

         Pursuant to Sections 5 and 7 of the Voting Trust Agreement, you are
hereby instructed as follows with respect to all shares of Class A Common Stock
of DEKALB Genetics Corporation (the "Company") held by you on behalf of the
undersigned on the date hereof under the Voting Trust Agreement (the "Subject
Shares"): (a) at any duly noticed meeting of the stockholders of the Company
called to vote upon the Merger Agreement, dated as of the date hereof, by and
among the Company, Monsanto Company and Corn Acquisition Corporation (the
"Merger Agreement") and the transactions contemplated thereby or at any
adjournment thereof or in any other circumstances under which a vote, consent or
approval (including by written consent) with respect to the Merger Agreement and
the transactions contemplated thereby is sought, to vote all of the Subject
Shares in favor of the approval and adoption of the Merger Agreement and the
transactions contemplated thereby; (b) to be present (in person or by proxy) at
any duly noticed meeting of stockholders of the Company or any adjournment
thereof or in any other circumstances under which the vote, consent or other
approval of the stockholders of the Company is sought with respect to any
Business Combination (as defined in the Stockholders Agreement (as defined
below)) other than the Merger (as defined in the Merger Agreement) and to vote
(or cause to be voted) all of the Subject Shares against any such Business
Combination; and (c) to tender as soon as practicable (and in any event not
later than two business days prior to the first scheduled expiration date of the
Offer (as defined in the Merger Agreement)) all of the Subject Shares pursuant
to the Offer and not to withdraw such tender of the Subject Shares.

         These Instructions are the instructions of the undersigned referred to
in Sections 1.1 and 2.2 of the Stockholders Agreement, dated as of the date
hereof (the "Stockholders 




<PAGE>


Agreement"), among Monsanto Company, the undersigned, the other holders of trust
certificates under the Voting Trust Agreement and the Voting Trustees under the
Voting Trust Agreement.

         These instructions are irrevocable and are binding upon the successors
and assigns of the undersigned.

         Dated:  May 8, 1998.

                            TERRANCE K. HOLT



                            /s/ Terrance K. Holt                                
                            ----------------------------------------------------
                            Terrance K. Holt, individually and as Trustee of
                            (i) the Amanda Mary Holt Trust dated 12/6/85 
                            and (ii) the Virginia Roberts Holt 1998 Annuity 
                            Trust



                                       2
<PAGE>


                      ROBERTS FAMILY VOTING TRUST AGREEMENT

                        VOTING AND TENDERING INSTRUCTIONS


TO: Charles C. Roberts, Mary R. Roberts, Douglas C. Roberts, Virginia R. Holt 
    and John T. Roberts, as Voting Trustees (and any successor or additional 
    voting trustees) under the Roberts Family Voting Trust Agreement dated as of
    January 31, 1996 (the "Voting Trust Agreement")

         Pursuant to Sections 5 and 7 of the Voting Trust Agreement, you are
hereby instructed as follows with respect to all shares of Class A Common Stock
of DEKALB Genetics Corporation (the "Company") held by you on behalf of the
undersigned on the date hereof under the Voting Trust Agreement (the "Subject
Shares"): (a) at any duly noticed meeting of the stockholders of the Company
called to vote upon the Merger Agreement, dated as of the date hereof, by and
among the Company, Monsanto Company and Corn Acquisition Corporation (the
"Merger Agreement") and the transactions contemplated thereby or at any
adjournment thereof or in any other circumstances under which a vote, consent or
approval (including by written consent) with respect to the Merger Agreement and
the transactions contemplated thereby is sought, to vote all of the Subject
Shares in favor of the approval and adoption of the Merger Agreement and the
transactions contemplated thereby; (b) to be present (in person or by proxy) at
any duly noticed meeting of stockholders of the Company or any adjournment
thereof or in any other circumstances under which the vote, consent or other
approval of the stockholders of the Company is sought with respect to any
Business Combination (as defined in the Stockholders Agreement (as defined
below)) other than the Merger (as defined in the Merger Agreement) and to vote
(or cause to be voted) all of the Subject Shares against any such Business
Combination; and (c) to tender as soon as practicable (and in any event not
later than two business days prior to the first scheduled expiration date of the
Offer (as defined in the Merger Agreement)) all of the Subject Shares pursuant
to the Offer and not to withdraw such tender of the Subject Shares.

         These Instructions are the instructions of the undersigned referred to
in Sections 1.1 and 2.2 of the Stockholders Agreement, dated as of the date
hereof (the "Stockholders 




<PAGE>



Agreement"), among Monsanto Company, the undersigned, the other holders of trust
certificates under the Voting Trust Agreement and the Voting Trustees under the
Voting Trust Agreement.

         These instructions are irrevocable and are binding upon the successors
and assigns of the undersigned.

         Dated:  May 8, 1998.

                               CHARLES C. ROBERTS AND MARY R. ROBERTS


  
                               /s/ Charles C. Roberts                           
                               -------------------------------------------------



                               /s/ Mary R. Roberts                              
                               -------------------------------------------------
                               Charles C. Roberts and Mary R. Roberts, 
                               individually and as Voting Trustees under the 
                               Voting Trust Agreement and as Trustees of (i) 
                               the Charles C. and Mary R. Roberts Living Trust 
                               dated 10/15/91, (ii) the Trust F/B/O Douglas C. 
                               Roberts under Eleanor T. Roberts Charitable 
                               Trust Agreement dated 12/21/67, (iii) the Trust 
                               F/B/O Virginia R. Holt under Eleanor T. Roberts 
                               Charitable Trust Agreement dated 12/21/67, and 
                               (iv) the Trust F/B/O John T. Roberts under 
                               Eleanor T. Roberts Charitable Trust Agreement 
                               dated 12/21/67





                                       2
<PAGE>


                                IRREVOCABLE PROXY

                                     to Vote

                              CLASS A COMMON STOCK

                                       of

                           DEKALB GENETICS CORPORATION


         The undersigned are the Voting Trustees under the Roberts Family Voting
Trust Agreement, dated as of January 31, 1996 (the "Voting Trust Agreement"),
and as such are the record owners of shares of Class A Common Stock of DEKALB
Genetics Corporation, a Delaware corporation (the "Company"). The undersigned,
in their capacities as such Voting Trustees, hereby irrevocably (to the fullest
extent permitted by the General Corporation Law of the State of Delaware),
appoint R. William Ide, III, Hendrick A. Verfaillie and the members of the Board
of Directors of Monsanto Company, a Delaware corporation ("Parent"), and each of
them, as the sole and exclusive attorneys and proxies of the undersigned, with
full power of substitution and resubstitution, to vote and exercise all voting
and related rights (to the full extent that the undersigned is entitled to do
so) with respect to all of the Subject Shares (as such term is defined in the
Stockholders Agreement (as defined below)) in accordance with the terms of this
Proxy. Upon the execution of this Proxy by the undersigned, any and all prior
proxies given by the undersigned with respect to any Subject Shares are hereby
revoked and the undersigned agree not to grant any subsequent proxies with
respect to the Subject Shares until after the Expiration Date (as defined
below).

         This Proxy is irrevocable and coupled with an interest, is granted
pursuant to that certain Stockholders Agreement, dated as of the date hereof,
among Parent, the undersigned and the Registered Holders named therein (the
"Stockholders Agreement"), and is granted in consideration of the Company, Corn
Acquisition Corporation, a Delaware corporation ("Sub"), and Parent entering
into that certain Agreement and Plan of Merger, dated as of the date hereof (the
"Merger Agreement"). The Merger Agreement provides, among other things, for the
merger (the "Merger") of Sub with and into the Company, with the Company
becoming a wholly-owned subsidiary of Parent, all in accordance with the terms
of the Merger Agreement. As used herein, the term "Expiration Date" shall mean
the earlier to occur of (i) the termination of the Stockholders Agreement in
accordance with its terms, or (ii) such date and time as the Merger shall have
become effective in accordance with the terms and provisions of the Merger
Agreement.

         The attorneys and proxies named above, and each of them, are hereby
authorized and empowered by the undersigned stockholders, at any time prior to
the Expiration Date, to act as the attorney and proxy of the undersigned to vote
the Subject Shares (including, without limitation, the power to execute and
deliver written consents) at every annual, special or adjourned meeting of the
stockholders of the Company and in every written consent in lieu of 



<PAGE>


such meeting and in any other circumstances under which a vote, consent or
approval (including by written consent) of the stockholders of the Company is
sought: (a) in favor of the adoption of the Merger Agreement and the
transactions contemplated by the Merger Agreement; (b) against any action,
proposal or agreement that could reasonably be expected to result in a breach in
any material respect of any covenant, representation or warranty or any other
obligation of the Company under the Merger Agreement, or which could reasonably
be expected to result in any of the conditions set forth in Article VIII or
Exhibit A of the Merger Agreement not being fulfilled; (c) against any Business
Combination (as defined in the Stockholders Agreement) or any Takeover Proposal
(as defined in the Merger Agreement), in either case other than the Merger, the
Merger Agreement and the transactions contemplated thereby; and (d) against (i)
any other extraordinary corporate transaction other than the Merger, the Merger
Agreement and the transactions contemplated thereby, such as a merger,
consolidation, business combination, reorganization, recapitalization or
liquidation involving the Company or any of its subsidiaries, or a sale or
transfer of a material amount of the assets of the Company or any of its
subsidiaries or (ii) any other proposal or transaction not covered by the
foregoing which would in any manner impede, frustrate, prevent, delay or nullify
the Merger, the Merger Agreement or the transactions contemplated thereby. The
attorneys and proxies named above may not exercise this Proxy on any other
matter except as provided in clauses (a), (b), (c) and (d) above.

         Any obligation of the undersigned hereunder shall be binding upon the
successors and assigns of the undersigned.

                               Dated:  May 8, 1998



                               /s/ Douglas C. Roberts                           
                               -------------------------------------------------
                               Douglas C. Roberts, as Voting Trustee under the
                                           Voting Trust Agreement



                               /s/ John T. Roberts                              
                               -------------------------------------------------
                               John T. Roberts, as Voting Trustee under the
                                           Voting Trust Agreement



                               /s/ Virgnia R. Holt                              
                               -------------------------------------------------
                               Virginia R. Holt, as Voting Trustee under the
                                           Voting Trust Agreement


                                       2
<PAGE>

                               /s/ Mary R. Roberts                              
                               -------------------------------------------------
                               Mary R. Roberts, as Voting Trustee under the
                                           Voting Trust Agreement

 


                               /s/ Charles C. Roberts                           
                               -------------------------------------------------
                               Charles C. Roberts, as Voting Trustee under the
                                           Voting Trust Agreement


                                       3



© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission