MML SERIES INVESTMENT FUND
485BPOS, 1997-04-28
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<PAGE>
 
                                                            
                                                        Rule 485(b
                                                        Registration No. 2-39334
                                                        File No. 811-2224     

                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D. C. 20549

                                   FORM N-1A
                                   ---------

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933                     X
                                                                          -----
         
     Pre-Effective Amendment No. 
                                 -----                                    -----
     Post-Effective Amendment No.  36                                       X
                                  -----                                   -----
          

                                 and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940
         
     Amendment No. 21     
                   --

                          MML SERIES INVESTMENT FUND
                          --------------------------
                (Exact Name of Registrant Specified in Charter)

              1295 State Street, Springfield, Massachusetts 01111
              ---------------------------------------------------
              (Address of Principal Executive Offices)  (ZipCode)
                Registrant's Telephone Number:  (413) 788-8411
                                                --------------

                    Name and Address of Agent for Service:
                    --------------------------------------
                             Stephen L. Kuhn, Esq.
                          Vice President and Secretary
                           MML Series Investment Fund
                               1295 State Street
                             Springfield, MA 01111
    
Approximate Date of Proposed Public Offering: May 1, 1997     

It is proposed that this filing will become effective (check appropriate line)
                 
             immediately upon filing pursuant to paragraph (b)
     -----
       X     on May 1, 1997 pursuant to paragraph (b)
     -----
             60 days after filing pursuant to paragraph (a)(1)
     -----
             on [date] pursuant to paragraph (a)(1) of rule 485.
     -----
             on 75 days after filing pursuant to paragraph (a)(2)
     -----
             on [date] pursuant to paragraph (a)(2) of rule 485.     
     -----
    
If appropriate, check the following box:
            this post-effective amendment designates a new effective date for 
     -----  a previous filed post-effective amendment.     

                        STATEMENT PURSUANT TO RULE 24f-2
    
Registrant has registered an indefinite number or amount of its shares under the
Securities Act of 1933 pursuant to Rule 24f-2 under the Investment Company Act
of 1940. Registrant's Rule 24f-2 Notice for period ended December 31, 1996 was
filed on February 27, 1997.     
    
The Index to Exhibits is located at Page 1 of  Part C (Item 24(b)).     
<PAGE>
 
To: The Securities and Exchange Commission
    
Registrant submits this Post-Effective Amendment No. 36 to its Registration
Statement No. 2-39334 under the Securities Act of 1933 and this Amendment No. 21
to its Registration Statement No. 811-2224 under the Investment Company Act of
1940. This Post-Effective Amendment relates solely to MML Equity Fund, MML Money
Market Fund, MML Managed Bond Fund and MML Blend Fund. No information relating
to any other series of Registrant is amended or superseded hereby.     


This Amendment consists of:


1.   Facing Sheet

2.   Cross-Reference Sheet

3.   Revised Prospectus (Part A)
    
4.   Revised Statement of Additional Information (Part B)     

5.   Other Information (Part C)

6.   Signature Page

7.   Exhibits
 
     Exhibit 11(a):  Consent of Independent Accountants
          
     Exhibit 11(b):  Power of Attorney

     Exhibit 17:  Financial Data Schedule     
<PAGE>
 
                          MML SERIES INVESTMENT FUND
                             Cross-Reference Sheet
<TABLE>     
<CAPTION> 

Item No. Of Form N-1A                Prospectus Caption
- ----------------------               ------------------
Part A
- ------
<S>                                  <C> 
1 ...............................    Prospectus Cover Page

2 ...............................    Not Applicable

3(a) ............................    Financial Highlights

3(b) ............................    Not Applicable

3(c) ............................    Investment Performance
 
3(d) ............................    Not Applicable

4(a), (b) and (c) ...............    General Information; The Funds; Investment
                                     Practices of the Funds and Related Risks,
                                     Investment Restrictions

5(a) ............................    Management Discussion; Management of MML
                                     Trust

5(b), (e), (f) and (g) ..........    Investment Managers; Financial Highlights

5(c) ............................    The Funds

5(d) ............................    Not Applicable

5A ..............................    Not Applicable

6(a) and (b) ....................    Capital Shares; General Information

6(c) and (d) ....................    Not Applicable

6(e) ............................    Capital Shares

6(f) ............................    Dividends and Capital Gains Distributions

6(g) ............................    Tax Status; Dividends and Capital Gains
                                     Distributions

6(h) ............................    Not Applicable

7 ...............................    General Information; Sale and Redemption of
                                     Shares

7(a) ............................    Not Applicable

7(b) ............................    Net Asset Value; Sale and Redemption of Shares

7(c)-(e) ........................    Not Applicable

8(a) ............................    Sale and Redemption of Shares

8(b)-(d) ........................    Not Applicable

9 ...............................    Not Applicable

</TABLE>      
                                       i
<PAGE>
 
<TABLE>     
<CAPTION> 

Item No. of Form N-1A                Statement of Additional Information
- -----------------------              ------------------------------------
Part B                               Information Location or Caption
- ------                               -------------------------------
 <S>                                 <C> 
 10(a) and (b) ..................    Cover Page

 11 .............................    Table of Contents

 12 .............................    General Information

 13(a) ..........................    Investment Practices of the Funds and
                                     Related Risks

 13(b) ..........................    Investment Restrictions

 13(c) ..........................    Investment Practices of the Funds and
                                     Related Risks

 13(d) ..........................    Not Applicable

 14(a)-(c) ......................    Management of MML Trust
 
 15(a) ..........................    Not Applicable

 15(b) ..........................    Control Persons and Principal Holders of
                                     Securities

 15(c) ..........................    Management of MML Trust

 16(a) and (b) ..................    Investment Management and Other Services

 16(c)-(g) ......................    Not Applicable

 16(h) ..........................    Investment Management and Other Services;
                                     Experts; Back Cover Page

 16(i) ..........................    Not Applicable

 17(a)-(c) ......................    Brokerage Allocation

 17(d) and (e) ..................    Not Applicable

 18(a) ..........................    Capital Shares

 18(b) ..........................    Not Applicable

 19(a) and (b) ..................    Purchase, Redemption and Pricing of
                                     Securities Being Offered; Financial
                                     Statements of MML Trust

 19(c) ..........................    Not Applicable

</TABLE>      

                                      ii
<PAGE>
 
<TABLE> 
<CAPTION> 

Item No. of Form N-1A                Statement of Additional Information
- ---------------------                -----------------------------------
Part B                               Information Location or Caption
- ------                               -------------------------------
 <S>                                 <C> 
 20 .............................    Certain Tax and Accounting Information

 21 .............................    Not Applicable

 22 .............................    Investment Performance

 23 .............................    Report of Independent Accountants;
                                     Financial Statements of MML Trust

</TABLE> 
    
Part C
- ------

Information to be included in Part C is set forth under the appropriate item so
numbered in Part C of this Registration Statement.     


                                      iii
<PAGE>
 
                                  PROSPECTUS

    
                              Dated May 1, 1997      

                           MML SERIES INVESTMENT FUND
                                1295 State Street
                           Springfield, Massachusetts
                                 (413) 788-8411
    
MML Series Investment Fund ("MML Trust") is a no-load, open-end, management
investment company having five separate series of shares, each of which has
different investment objectives and is designed to meet different investment
needs. This Prospectus provides information regarding the four diversified
series of MML Trust described below (the "Funds").      

THE FUNDS

MML Equity Fund - The investment objectives are primarily to achieve a superior
total rate of return over an extended period of time from both capital
appreciation and current income and secondarily, depending upon business and
economic conditions, to preserve capital. The Fund invests primarily in
equity-type securities.

MML Money Market Fund - The investment objectives are to achieve high current
income, the preservation of capital, and liquidity. The Fund invests in
short-term debt instruments, including commercial paper, certificates of
deposit, bankers' acceptances, and obligations of the United States, its
agencies and instrumentalities. An investment in the Fund is neither insured nor
guaranteed by the U.S. Government, and there can be no assurance that the Fund
will be able to maintain a stable net asset value of $1.00 per share.

MML Managed Bond Fund - The investment objective is to achieve as high a total
rate of return on an annual basis as is considered consistent with the
preservation of capital. The Fund invests primarily in investment grade,
publicly-traded, fixed income securities.

MML Blend Fund - The investment objective is to achieve as high a level of total
rate of return over an extended period of time as is considered consistent with
prudent investment risk and the preservation of capital. The Fund invests in a
portfolio of common stocks and other equity-type securities, bonds and other
debt securities with maturities generally exceeding one year, and money market
instruments and other debt securities with maturities not exceeding one year.
    
For further information about each Fund's investment objectives and policies,
see "THE FUNDS" on page 9. There is no assurance that the investment objectives
of the Funds will be realized.     
    
This Prospectus sets forth concisely the information about MML Trust and the
Funds that a prospective investor ought to know before investing. Certain
additional information about MML Trust and the Funds is contained in a Statement
of Additional Information dated May 1, 1997, which has been filed with the
Securities and Exchange Commission and is incorporated herein by reference. This
additional information is available upon request and without charge. To obtain
such information, please contact the Secretary, MML Series Investment Fund, 1295
State Street, Springfield, Massachusetts 01111.     

This Prospectus should be retained for future reference for information about
MML Trust and the Funds.

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

THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.

                           -------------------------
<PAGE>
 
<TABLE>     
<CAPTION> 

Table Of Contents                                                    Page
<S>                                                                   <C> 
Financial Highlights..............................................      2
Management Discussion.............................................      5
General Information...............................................      9
The Funds.........................................................      9
Investment Practices of the Funds and Related Risks...............     11
Investment Restrictions...........................................     12
Investment Managers...............................................     13
Capital Shares....................................................     14
Net Asset Value...................................................     14
Sale and Redemption of Shares.....................................     15
Tax Status........................................................     15
Dividends and Capital Gains Distributions.........................     15
Investment Performance............................................     16
Management of MML Trust...........................................     16
</TABLE>      

I. Financial Highlights
    
The information in the following tables has been derived from financial
statements audited by Coopers & Lybrand L.L.P., independent accountants, whose
report on the financial statements of the Funds is included in MML Trust's
Annual Report for the year ended December 31, 1996 (the "Annual Report") and in
the Statement of Additional Information. Further information about the
performance of the Funds is contained in the Annual Report which may be obtained
from MML Trust's Secretary without charge.     

                                 MML EQUITY FUND
    
Selected per share data for each series share outstanding throughout each year
ended December 31:     

<TABLE>     
<CAPTION> 
                                            1996      1995       1994        1993      1992      
<S>                                    <C>        <C>        <C>        <C>        <C> 
Net asset value:
 Beginning of year...................  $   25.924 $   20.520 $   20.510 $  19.862  $  18.735
                                       ---------- ---------- ---------- ---------  ---------
Income from investment operations:
Net investment income................        .703       .634       .594      .524       .543
Net realized and unrealized
 gain (loss) on investments..........       4.547      5.754       .248     1.365      1.420
                                       ---------- ---------- ---------- ---------  ---------
Total from investment operations.....       5.250      6.388       .842     1.889      1.963
                                       ---------- ---------- ---------- ---------  ---------
Less distributions:
Dividends from net investment income.       (.703)     (.634)     (.594)    (.524)     (.543)
Distribution from net realized gains.       (.685)     (.350)     (.238)    (.717)     (.288)
Distribution in excess of net realized
 gains...............................         --         --         --         --      (.005)
                                       ---------- ---------- ---------- ---------  ---------
Total distributions..................      (1.388)     (.984)     (.832)    (1.241)    (.836)
                                       ---------- ---------- ---------- ---------  ---------
Net asset value:
 End of year.........................  $   29.786 $   25.924 $   20.520 $  20.510  $  19.862
                                       ========== ========== ========== =========  =========

Total return.........................      20.25%     31.13%      4.10%     9.52%     10.48%

Net assets (in millions):
 End of year.........................  $1,701.99  $1,248.90  $  820.78  $ 663.09   $ 490.62
Ratio of expenses to average net
 assets..............................        .38%       .41%       .43%      .44%       .46%
Ratio of net investment income to
 average net assets..................       2.65%      2.89%      3.04%     3.23%      3.09%
Portfolio turnover rate..............      11.42%     11.72%      9.99%    11.28%      9.07%

<CAPTION> 

                                               1991       1990       1989        1988       1987
<S>                                       <C>        <C>        <C>         <C>        <C> 
Net asset value:
 Beginning of year...................     $   15.659 $   16.764 $   14.929  $  13.828  $   15.591
                                          ---------- ---------- ----------  ---------  ----------
Income from investment operations:
Net investment income................           .563       .636       .694       .646        .525
Net realized and unrealized
 gain (loss) on investments..........          3.440      (.722)     2.746      1.660       (.066)
                                          ---------- ---------- ----------  ---------  ----------
Total from investment operations.....          4.003      (.086)     3.440      2.306        .459
                                          ---------- ---------- ----------  ---------  ----------
Less distributions:
Dividends from net investment income.          (.562)     (.665)     (.711)     (.639)      (.988)
Distribution from net realized gains.          (.365)     (.354)     (.894)     (.566)     (1.234)
Distribution in excess of net realized
 gains...............................             --         --        --         --           --
                                          ---------- ---------- ----------  ---------  ----------
Total distributions..................          (.927)    (1.019)    (1.605)    (1.205)     (2.222)
                                          ---------- ---------- ----------  ---------  ----------

Net asset value:
 End of year.........................     $   18.735 $   15.659 $   16.764  $  14.929  $   13.828
                                          ========== ========== ==========  =========  ==========

Total return.........................         25.56%      (.51%)    23.04%      16.68%    2.10%

Net assets (in millions):
 End of year.........................     $  355.04  $  235.45  $  226.41   $ 172.80   $  150.41
Ratio of expenses to average net
 assets..............................           .48%       .49%       .50%       .50%        .51%
Ratio of net investment income to
 average net assets..................          3.43%      4.09%      4.30%      4.05%       3.44%
Portfolio turnover rate..............          9.37%     13.50%     15.71%     15.97%      15.73%
</TABLE>      

                                       2
<PAGE>
 
                              MML MONEY MARKET FUND

Selected per share data for each series share outstanding throughout each year
ended December 31:

<TABLE>     
<CAPTION> 
                                            1996        1995       1994      1993      1992    
<S>                                   <C>          <C>        <C>     <C>        <C> 
Net asset value:
 Beginning of year................     $    1.000 $    1.000 $    1.000 $   1.000  $   1.000
                                       ---------- ---------- ---------- ---------  ---------
Income from investment operations:
Net investment income.............           .049       .054       .038      .027       .034
                                       ---------- ---------- ---------- ---------  ---------
Total from investment operations..           .049       .054       .038      .027       .034
                                       ---------- ---------- ---------- ---------  ---------
Less distributions:
Dividends from net investment income        (.049)     (.054)     (.038)    (.027)     (.034)
                                       ---------- ---------- ---------- ---------  ---------
Total distributions...............          (.049)     (.054)     (.038)    (.027)     (.034)
                                       ---------- ---------- ---------- ---------  ---------
Net asset value:
 End of year......................     $    1.000 $    1.000 $    1.000 $   1.000  $   1.000
                                       ========== ========== ========== =========  =========

Total return......................          5.01%      5.58%      3.84%     2.75%      3.48%
Net assets (in millions):
 End of year......................     $  145.23  $  108.92  $   91.79  $  73.66   $  84.56
Ratio of expenses to average net
 assets...........................           .52%       .54%       .55%      .54%       .53%
Ratio of net investment income to
 average net assets...............          4.92%      5.43%      3.81%     2.71%      3.42%

<CAPTION> 

                                            1991       1990       1989       1988        1987
<S>                                 <C>         <C>            <C>        <C>      <C> 
Net asset value:
 Beginning of year.................    $    1.000 $    1.000 $    1.000  $   1.000  $    1.000
                                       ---------- ---------- ----------  ---------  ----------
Income from investment operations:
Net investment income..............          .059       .078       .088       .072        .063
                                       ---------- ---------- ----------  ---------  ----------
Total from investment operations...          .059       .078       .088       .072        .063
                                       ---------- ---------- ----------  ---------  ----------
Less distributions:
Dividends from net investment income        (.059)     (.078)     (.088)     (.072)      (.063)
                                       ---------- ---------- ----------  ---------  ----------
Total distributions................         (.059)     (.078)     (.088)     (.072)      (.063)
                                       ---------- ---------- ----------  ---------  ----------
Net asset value:
 End of year.......................    $    1.000 $    1.000 $    1.000  $   1.000  $    1.000
                                       ========== ========== ==========  =========  ==========

Total return.......................         6.01%      8.12%      9.16%      7.39%       6.49%
Net assets (in millions):
 End of year.......................    $   94.41  $  114.59  $   70.16   $  66.35   $   52.35
Ratio of expenses to average net
 assets............................          .52%       .54%       .54%       .55%        .57%
Ratio of net investment income to
 average net assets................         5.91%      7.80%      8.79%      7.20%       6.35%
</TABLE>      


                              MML MANAGED BOND FUND

Selected per share data for each series share outstanding throughout each year
ended December 31:

<TABLE>     
<CAPTION> 

                                          1996      1995       1994        1993      1992      
<S>                                    <C>       <C>        <C>        <C>        <C> 
Net asset value:
 Beginning of year................     $   12.448 $   11.141 $   12.405 $  12.041  $  12.219
                                       ---------- ---------- ---------- ---------  ---------
Income from investment operations:
Net investment income.............           .776       .782       .792      .785       .870
Net realized and unrealized
 gain (loss) on investments
 and forward commitments..........          (.401)     1.307      (1.264)    .618       .001
                                       ---------- ---------- ---------- ---------  ---------
Total from investment operations..           .375      2.089      (.472)    1.403       .871
                                       ---------- ---------- ---------- ---------  ---------
Less distributions:
Dividends from net investment income        (.775)     (.782)     (.792)    (.784)     (.869)
Distribution from net realized gains           --         --         --     (.255)     (.158)
Distribution in excess of net realized
 gains............................             --         --         --         --     (.022)
                                       ---------- ---------- ---------- ---------  ---------
Total distributions...............          (.775)     (.782)     (.792)   (1.039)    (1.049)
                                       ---------- ---------- ---------- ---------  ---------
Net asset value:
 End of year......................     $   12.048 $   12.448 $   11.141 $  12.405  $  12.041
                                       ========== ========== ========== =========  =========

Total return......................         3.25%      19.14%     (3.76%)    11.81%      7.31%
Net assets (in millions):
 End of year......................     $ 181.57   $  158.70  $  121.21  $ 129.11   $  88.15
Ratio of expenses to average
 net assets.......................          .51%        .52%       .52%      .54%       .56%
Ratio of net investment income to
 average net assets...............         6.54%       6.63%      6.69%     6.37%      7.28%
Portfolio turnover rate...........        46.12%      70.00%     32.77%    58.81%     39.51%

<CAPTION> 

                                          1991       1990       1989        1988       1987
<S>                                <C>           <C>       <C>         <C>        <C> 
Net asset value:
 Beginning of year................     $   11.318 $   11.354 $   10.919  $  11.052  $   12.541
                                       ---------- ---------- ----------  ---------  ----------
Income from investment operations:
Net investment income.............           .903       .943       .918       .906        .969
Net realized and unrealized
 gain (loss) on investments
 and forward commitments..........           .916      (.036)      .454      (.133)      (.673)
                                       ---------- ---------- ----------  ---------  ----------
Total from investment operations..          1.819       .907      1.372       .773        .296
                                       ---------- ---------- ----------  ---------  ----------
Less distributions:
Dividends from net investment income        (.902)      (.943)    (.918)     (.906)     (1.229)
Distribution from net realized gains        (.016)         --     (.019)        --       (.556)
Distribution in excess of net realized
 gains............................             --          --        --         --          --
                                       ---------- ---------- ----------  ---------  ----------
Total distributions...............          (.918)     (.943)     (.937)     (.906)     (1.785)
                                       ---------- ---------- ----------  ---------  ----------
Net asset value:
 End of year......................     $   12.219 $   11.318 $   11.354  $  10.919  $   11.052
                                       ========== ========== ==========  =========  ==========

Total return......................          16.66%      8.38%     12.83%      7.13%       2.60%
Net assets (in millions):
 End of year......................      $   66.98  $   43.07  $   40.03   $  31.35   $   26.16
Ratio of expenses to average
 net assets.......................            .57%       .57%       .59%       .61%        .60%
Ratio of net investment income to
 average net assets...............           7.96%      8.40%      8.35%      8.25%       8.24%
Portfolio turnover rate...........          61.85%     69.93%     64.77%     74.92%      55.60%
</TABLE>      

                                       3
<PAGE>
 
<TABLE>     
<CAPTION> 


                                MML BLEND FUND
Selected per share data for each series share outstanding throughout each year
ended December 31:


                                            1996       1995        1994       1993       1992    
<S>                                       <C>        <C>        <C>         <C>        <C> 
Net asset value:
 Beginning of year......................  $   20.519 $  17.672  $   18.305  $  17.846  $  17.307 
                                          ---------- ---------  ----------  ---------  ---------

Income from investment operations:
Net investment income...................        .824      .811        .707       .655       .707 
Net realized and unrealized
 gain (loss) on investments
 and forward commitments................       1.990     3.246       (.271)     1.057       .880  
                                          ---------- ---------  ----------  ---------  ---------

Total from investment operations........       2.814     4.057        .436      1.712      1.587 
                                          ---------- ---------  ----------  ---------  ---------

Less distributions:
Dividends from net investment income....       (.824)    (.811)      (.707)     (.655)     (.707)
Distribution from net realized gains....       (.536)    (.399)      (.359)     (.598)     (.326)
Distribution in excess of net realized
 gains..................................          --        --       (.003)        --      (.015)
                                          ---------- ---------  ----------  ---------  ---------

Total distributions.....................      (1.360)   (1.210)     (1.069)    (1.253)    (1.048)
                                          ---------- ---------  ----------  ---------  ---------
Net asset value:
 End of year............................  $   21.973 $  20.519  $   17.672  $  18.305  $  17.846 
                                          ========== =========  ==========  =========  =========
Total return............................       13.95%    23.28%       2.48%      9.70%      9.36% 

Net assets (in millions):
 End of year............................  $ 2,093.99 $1,823.14  $ 1,444.26  $1,296.54  $1,013.28 
Ratio of expenses to average
 net assets.............................         .38%      .38%        .39%       .40%       .41% 
Ratio of net investment income to
 average net assets.....................        3.87%     4.19%       3.93%      3.60%      4.07% 
Portfolio turnover rate.................       19.10%    30.78%      26.59%     20.20%     25.43% 

<CAPTION> 
                                          1991       1990       1989        1988       1987
<S>                                    <C>        <C>        <C>         <C>        <C> 
Net asset value:
 Beginning of year.................... $   14.839 $   15.428 $   13.876  $  13.095  $   13.774
                                       ---------- ---------- ----------  ---------  ----------
Income from investment operations:
Net investment income.................       .736       .792       .823       .734        .624
Net realized and unrealized
 gain (loss) on investments
 and forward commitments..............      2.771      (.445)     1.921      1.000       (.148)
                                       ---------- ---------- ----------  ---------  ----------
Total from investment operations......      3.507       .347      2.744      1.734        .476
                                       ---------- ---------- ----------  ---------  ----------
Less distributions:
Dividends from net investment income..      (.736)     (.811)     (.835)     (.728)      (.747)
Distribution from net realized gains..      (.303)     (.125)     (.357)     (.225)      (.408)
Distribution in excess of net realized
 gains................................         --         --         --         --          --
                                       ---------- ---------- ----------  ---------  ----------
Total distributions...................     (1.039)     (.936)    (1.192)     (.953)     (1.155)
                                       ---------- ---------- ----------  ---------  ----------
Net asset value:
 End of year.......................... $   17.307 $   14.839 $   15.428  $  13.876  $   13.095
                                       ========== ========== ==========  =========  ==========

Total return..........................      24.00%      2.37%     19.96%     13.40%       3.12%
Net assets (in millions):
 End of year.......................... $   797.04 $   574.15 $   524.29  $  401.22  $   346.12
Ratio of expenses to average
 net assets...........................        .42%       .44%       .45%       .46%        .48%
Ratio of net investment income to
 average net assets...................       4.54%      5.37%      5.57%      5.29%       4.77%
Portfolio turnover rate...............      26.92%     24.55%     22.39%     25.70%      36.56%
</TABLE>      

    
Total return information shown in the Financial Highlights tables does not
reflect expenses that apply at the separate account level or to related
insurance products. Inclusion of these charges would reduce the total return
figures for all periods shown.     

                                       4
<PAGE>
 
II. Management Discussion

A. ECONOMIC AND INVESTMENT ENVIRONMENT
    
Although figures released throughout the year were often contradictory, 1996
closed as the sixth consecutive year of the current U.S. economic expansion.
Growth during the year was driven by consumption and household sales, and by
capital investment by businesses; it was slowed only by relatively weak foreign
trade.     
    
Even with continued growth, however, inflation has remained subdued. In
addition, because prices were stronger during 1996 than they had been in 1995,
the Federal Reserve Board stopped lowering interest rates after January. The
achievement of an "orchestrated economy" - growth without inflationary pressures
- - meant the Federal Reserve Board did not have to intervene again during the
year. As a consequence, interest rates rose only slightly.     
    
More efficient and competitive every year, corporate America enjoyed another
period of profitability. The stock market, reflecting this profitability plus
the favorable economic environment and tremendous demand for stocks from
investors, climbed to new record highs throughout the year. While larger stocks
gained the most over the course of the year, nearly all sectors of the market
outperformed their long-term averages.     
    
Underlying the stock market's tremendous positives, it is important to recognize
that an ongoing trend toward more selective markets continued over the year. So,
while market sectors were generally up, there was often disparity between how
well the best and weakest stocks within an industry performed, and expert stock
picking was the identifying trademark of the year's real winners.     
    
The bond market, on the other hand, had a difficult year. In contrast to 1995,
when declining interest rates spurred a broad bond rally, 1996's increase in
rates hurt bond prices. Especially in Treasuries, which tend to be most
sensitive to changes in rates, price performance eroded returns. After its
strong run in 1995, the bond market was also subject to changing investor
emotions throughout the past year.     
    
Volatility was the rule in the bond market during 1996, with the release of
changing economic data alternately sending investors chasing and then running
from the market. In this climate, the best performers were shorter-term
securities, which generally have less price sensitivity than their longer
counterparts.     
    
The stock and bond markets required selectivity during 1996. In selective
markets, value investors like us benefit from the extensive research that is an
inherent part of our strategy. We view temporary price fluctuations as a chance
to buy the stocks and bonds we feel represent strong opportunities over time. By
the same token, our value requirements mean that we tend not to buy or hold
stocks and bonds that have already appreciated significantly during a given
cycle. This discipline helps keep us from paying too much for a security, or
holding it too long.     
    
Throughout 1996, our value approach was a benefit. While more growth-oriented
stock strategies often outperform during strong bull markets, at the market's
current price levels we feel a more conservative approach is appropriate. In
bonds our careful strategies helped us successfully navigate the changing
markets and avoid their pitfalls.    
    
B. MML EQUITY FUND

How has the Fund performed over the past year?     
    
The Fund performed well in 1996. The one-year total return was 20.25% as
compared to the S&P 500 Index which was up 22.96%. The Fund participated in the
continuing advance of stock prices, and in those few months when the market
paused, the Fund retained its value better than the stock market overall. With
the market now entering the seventh year since the most recent bull market
began, we believe that this strategy of maintaining relatively low portfolio
risk will be beneficial to the Fund in future periods.     
    
What was your strategy over the past year's strong, but volatile market?     
    
Our strategy remained consistent over the past year. We maintained a
well-diversified portfolio by following our investment decision process of stock
selection one-by-one. We find stocks through fundamental analysis, a `bottom up
approach' to researching a company. We believe this approach is less risky and
wiser than making investments based on economic forecasts.     

                                       5
<PAGE>
 
    
Were there any investments that didn't perform as you'd expected?     
    
The telephone industry was a disappointment last year. The major factor was the
telecommunications deregulation bill which was signed into law in the spring of
1996. This bill provides for the eventual opening up of the industry to
competition, and as companies prepare for this, increased marketing expenditures
will restrain earnings growth. Early in 1996, the Fund had a relatively small
commitment to this industry, but we steadily increased its weighting during the
year as we found companies with competitive advantages which were undervalued
relative to the market. In the long run, the surviving companies will prosper
due to strong growth of telecommunications traffic.     
    
What types of stocks performed best for you over the year?     
    
The Fund's results benefited from strong performance by several of its largest
holdings, such as Bristol Myers, General Electric, and Pfizer. The financial
holdings were also outstanding performers, particularly the banks. Contributing
to bank stock gains were an accommodative Federal Reserve policy, continued good
loan loss experience, and the relentless trend toward industry 
consolidation.     

<TABLE> 
<CAPTION>     
                             [Graph Appears Here]
                 
               EQUITY       STANDARD & POORS
PERIOD         INDEX        500
ENDING         FUND         INDEX FUND
<S>            <C>          <C> 
1/1/87         10,000.00    10,000.00
1987           10,210.00    10,527.00
1988           11,913.03    12,274.48
1989           14,657.79    16,160.58
1990           14,583.03    15,659.60
1991           18,310.46    20,431.09
1992           20,229.39    21,987.94
1993           22,155.23    24,202.12   
1994           23,063.60    24,519.17   
1995           30,243.30    33,733.47   
1996           36,367.56    41,482.05      
</TABLE> 
     
<TABLE>  
<CAPTION> 

AVERAGE  ANNUAL  TOTAL RETURN                                        
<S>     <C>     <C>                                                  
 1 Year  5 Year  10 Year                                                
   20.25%  14.71%   13.78%      

</TABLE> 
    
Past performance is not predictive of future performance.     

    
C. MML MONEY MARKET FUND

How has the Fund performed over the past year?     
    
The Fund performed well. This has been another period of consistently good
performance both on an absolute basis and versus other money market type
investments. The yields from the very short maturity fixed income securities we
invest in remained competitive over the year, and that has helped us. For the
purpose of comparison, 91-day Treasuries returned 5.03% for the year while the
Fund was up 5.01%. In all, during a year in which conflicting economic
statistics caused volatility in the longer end of the bond market, "cash"
investments like this one have been a good place for investors.     

<TABLE> 
<CAPTION> 


                      AVERAGE ANNUAL TOTAL RETURN
<S>                    <C>      <C>      <C> 
Money Market           1 Year   5 Year   10 Year
                         5.01%    4.13%      5.76%
                   
<CAPTION> 
                      AVERAGE ANNUAL TOTAL RETURN
<S>                    <C>      <C>      <C> 
Lipper Taxable MM Av   1 Year   5 Year   10 Year  
                         4.80%    3.96%     5.52%
</TABLE> 
           Past performance is not predictive of future performance.

                                       6

           
<PAGE>
 
   
D. MML MANAGED BOND FUND

How did the Fund perform over the past year?

1996 was a trying year for the bond market, in part because interest rates rose
somewhat over the course of the year, and also because releases of conflicting
economic data filled the market with a high degree of volatility. Even so, the
Fund's performance was positive with a one-year total return of 3.25% compared
to the Lehman Brothers Government/Corporate Bond Index which was up 2.90%.

How did the bond market change over the past year?

Although there was a good degree of volatility throughout the year, conditions
changed most during the first half of 1996. During 1995, interest rates fell,
leading to excellent performance. In contrast, as rates increased over the past
year, prices, especially in longer bonds and Treasuries, were damaged. So even
though we were fully diversified across bond market sectors and maturities, this
downturn had a temporary dampening effect on our portfolio's performance.

What investments worked best under these conditions?

Although the impact of the rate increase was felt immediately, the resulting
steepening of the yield curve created value in the market over the longer term.
But not all areas of the market suffered during the year. Non-investment grade
bonds performed particularly well. While we avoid this sector of the market
because of the relative risks associated with it, we were pleased with our
holdings of investment grade corporate bonds and mortgage-backed securities.
Investment grade corporate bonds, which made up 54.8% of the portfolio as of
December 31, 1996, remained strong notwithstanding the broader market's
difficulties. Corporate profits held steady and, as a result, demand in the bond
market supported prices.

In addition to our successes with corporate bonds, mortgage-backed securities
performed well. We tend to buy well-structured, seasoned issues, and, as their
behavior tends to mimic corporate bonds, they worked well for us again this
year. Since concerns about the prepayment of all types of mortgages are greatest
when rates are falling, these securities paid competitive income and avoided
significant price declines during the past year. Mortgage-backed securities
constituted 21.4% of the Fund's portfolio at year end.     

                             [GRAPH APPEARS HERE]

<TABLE> 
<CAPTION> 
             
                 MML      LEHMAN BROTHERS
 PERIOD        MANAGED      GOVERNMENT/
 ENDING       BOND FUND   CORPORATE INDEX      
<S>           <C>           <C> 
 1/1/87       10,000.00     10,000.00   
 1987         10,260.00     10,229.00   
 1988         10,991.54     11,004.36   
 1989         12,401.75     12,570.28
 1990         13,439.78     13,611.10
 1991         15,678.85     15,806.57
 1992         16,824.97     17,004.71
 1993         18,812.00     18,880.32
 1994         18,104.67     18,217.62
 1995         21,569.90     21,722.70
 1996         22,270.92     22,435.20
<CAPTION> 

AVERAGE ANNUAL TOTAL RETURN
<S>       <C>      <C> 
1 Year    5 Year   10 Year 
 3.25%     7.27%     8.34%  
</TABLE> 
Past performance is not predictive of future performance.

                                       7
<PAGE>
 
   
E. MML BLEND FUND

How did the Fund perform over the past year?

We are very pleased with the Fund's performance. Our one-year total return was
13.95% as compared to the Lipper Balanced Index which was up 13.01%. With 58% of
the portfolio invested in stocks, we participated in the strong performance of
the equity market over the period. But with 19% of the portfolio in bonds and
the remaining 23% in cash and short-term fixed income investments, we were able
to do so with far less risk than pure stock investments.

What types of stocks worked best over the period?

The stocks of the large, well-established companies we tend to own performed
best over the year, and that was a benefit. Within the portfolio, some of our
top performers were financial services, capital spending and technology stocks.
Many of our bank stocks did well due to strong profits and ongoing
consolidations. Capital spending stocks were also strong. We owned a full
position in GE, which was one of our best performers, up approximately 40% for
the year. And though we tend to be underweighted in technology stocks since few
have the reasonable valuations and dividend records we require, we added to our
position in IBM over the course of the year, and that benefited us.

On the whole, our stock strategy remained consistent over the past year. We
maintained a well-diversified portfolio of what we considered the best stocks
across numerous industries rather than making investments based on current
economic forecasts. We worked to buy good value wherever we found it in the
market, and we sold stocks that we felt had become risky, reaching what we
targeted as peaks for their performance cycles.

What was your bond strategy during the year?

The bond portfolio turned in positive performance for the year, but it fell far
short of the returns generated by stocks. The investment grade fixed income
market had a somewhat difficult year due primarily to two factors. First,
interest rates rose slightly, and that negatively impacted price performance.
Second, a high level of volatility resulting from continuously changing economic
expectations colored the market and investor emotion throughout the year. Our
strategy inside this uneasy environment was to remain diversified among
Treasuries, mortgage-backed securities, asset-backed securities, and corporate
bonds, searching for opportunities to add value over time. This, plus
maintaining a duration of approximately five years, kept our performance closely
in line with our benchmark, the Lehman Brothers Government/Corporate Bond Index.
    

                             [GRAPH APPEARS HERE]

<TABLE>     
<CAPTION> 

                                 Lipper
                 MML            Balanced
PERIOD          Blend              Fund
ENDING          Fund              Index
<S>             <C>             <C> 
1/1/87        10,000.00        10,000.00
1987          10,311.55        10,413.00
1988          11,693.45        11,577.17
1989          14,027.91        13,857.88
1990          14,360.53        13,949.34
1991          17,807.70        17,552.45
1992          19,474.48        18,825.01
1993          21,362.78        21,027.53
1994          21,891.66        20,503.95
1995          26,988.04        25,545.87
1996          30,752.87        28,869.38

<CAPTION> 

AVERAGE ANNUAL TOTAL RETURN
 1 Year        5 Year            10 Year
 13.95%        11.55%             11.89%
</TABLE>      
    
         Past performance's not predictive of future performance.      

                                       8
<PAGE>
 
III. General Information

   
MML Trust is a no-load, open-end, management investment company, having five
separate series of shares. This Prospectus provides information regarding the
following four diversified series (the "Funds") of MML Trust: MML Equity Fund
("MML Equity"); MML Money Market Fund ("MML Money Market"); MML Managed Bond
Fund ("MML Managed Bond"); and MML Blend Fund ("MML Blend"). Each Fund has its
own investment objectives and policies and is designed to meet different
investment needs.

MML Trust was organized as a business trust under the laws of The Commonwealth
of Massachusetts pursuant to an Agreement and Declaration of Trust dated
December 19, 1984, as amended from time to time (the "Declaration of Trust").
MML Trust was established by Massachusetts Mutual Life Insurance Company
("MassMutual") for the purpose of providing a vehicle for the investment of
assets of various separate investment accounts established by MassMutual and its
life insurance company subsidiaries, including MML Bay State Life Insurance
Company. Shares of the Funds are offered solely to separate investment accounts
established by MassMutual and its life insurance company subsidiaries. 

MassMutual is responsible for providing all investment advisory, management, and
administrative services needed by the Funds pursuant to investment management
agreements. MassMutual has entered into investment sub-advisory agreements
pursuant to which David L. Babson and Company, Inc. ("Babson") manages the
equity investments of MML Equity and the Equity Sector (the "Equity Sector") of
MML Blend. Both MassMutual and Babson are registered with the Securities and
Exchange Commission (the "SEC") as investment advisers (MassMutual and Babson
are referred to hereafter as the "Advisers"). For further information, see
"Investment Managers" on page 13.     

IV. The Funds
   
The investment objectives of each Fund discussed below are fundamental policies
and may not be changed without the vote of a majority of that Fund's outstanding
voting shares (as used in this Prospectus, a majority of the outstanding voting
shares of any Fund means the lesser of (1) 67% of that Fund's outstanding shares
present at a meeting of the shareholders if more than 50% of the outstanding
shares are present in person or by proxy, or (2) more than 50% of that Fund's
outstanding shares). There is no assurance that the investment objectives of the
Funds will be realized. The success of these objectives depends to a great
extent upon management's ability to assess changes in business and economic
conditions. For further information about investment policies and techniques,
see "Investment Practices of the Funds and Related Risks" on page 11.     

A. MML EQUITY FUND

The primary investment objective of MML Equity is to achieve a superior total
rate of return over an extended period of time from both capital appreciation
and current income.
   
A secondary investment objective is the preservation of capital when business
and economic conditions indicate that investing for defensive purposes is
appropriate. Occasional investments may be made with the objective of short-term
appreciation when in the judgment of Babson general economic conditions dictate
that they may benefit MML Equity and are consistent with sound investment
procedure.

Normally, the assets of MML Equity will be invested primarily in common stocks
and other equity-type securities such as preferred stocks, securities
convertible into common stocks and warrants. Investments are made in securities
of companies which, in the opinion of Babson, are of high quality, offer
above-average dividend growth potential and are attractively valued in the
marketplace. Investment quality and dividend growth potential are evaluated
using fundamental analysis emphasizing each issuer's historical financial
performance, balance sheet strength, management capability and competitive
position. Various valuation parameters are examined to determine the
attractiveness of individual securities. On average, the Fund's portfolio
securities will have price/earnings ratios and price/book value ratios below
those of the Standard & Poor's 500 Composite Stock Price Index. Consideration is
also given to securities of companies whose current prices do not adequately
reflect, in the opinion of Babson, the ongoing business value of the enterprise.
These investments may be maintained in both rising and declining markets. Babson
intends to engage in the active management of MML Equity's portfolio. The
portfolio of the Fund is managed by James W. MacAllen, Executive Vice President
and Chief Investment Officer of Babson. Mr. MacAllen has been associated with
Babson since 1996. During 1996, Mr. MacAllen was also the Senior Vice President
of Concert Capital Management, Inc. ("Concert"), and, as such, managed the
portfolio of the Fund. (Concert merged with and into Babson effective as of
December 31, 1996.) Prior to January 1, 1996, Mr. MacAllen was with Hagler,
Mastrovita & Hewitt and prior to that was the President and Chief Investment
Officer of Wilmington Capital Management.     

B. MML MONEY MARKET FUND

The investment objectives of MML Money Market are to achieve high current
income, the preservation of capital, and liquidity. These objectives are of
equal importance.

MML Money Market will invest only in short-term (i.e., 397 days or less
remaining to maturity) debt instruments, including but not limited to commercial
paper; certificates of deposit; bankers' acceptances; short-term corporate
obligations; obligations issued, sponsored, assumed or guaranteed as to
principal and interest by the government of the United States, its agencies or
instrumentalities ("U.S. Government securities"); and certain repurchase
agreements with respect to any of the securities listed above (which underlying
securities must be of the highest quality at the time the repurchase agreement
is entered into but which securities may have maturities of more than one year).
MML Money Market's dollar-weighted average portfolio maturity will be maintained
at 90 days or less.

MML Money Market's non-fundamental investment policy is that, at the time it
acquires a security, it will invest 100% of its net assets in Tier 1 Securities,
but it retains the right to invest no more than 5% of its net assets in Tier 2
Securities. 

                                       9
<PAGE>
 
   
A Tier 1 Security is one that is rated in the highest rating category by at
least one nationally recognized statistical rating organization ("NRSRO") such
as Standard & Poor's Ratings Group ("S&P") or Moody's Investors Service, Inc.
("Moody's"). MML Money Market will invest no more than 5% of its total assets in
Tier 2 Securities. A Tier 2 Security is one that is rated in the second highest
rating category by at least one NRSRO. Securities which are unrated may also
qualify as Tier 1 and Tier 2 Securities if so determined by the Board of
Trustees of MML Trust (the "Board of Trustees"). For a description of S&P and
Moody's ratings, see the Statement of Additional Information.     

Certificates of deposit and bankers' acceptances will be limited to obligations
of banks having deposits of at least $1,000,000,000 as of their most recently
published financial statements. The obligations of U.S. banks in which MML Money
Market may invest include Eurodollar obligations of their foreign branches. In
the case of foreign banks, the $1,000,000,000 deposit requirement will be
computed using exchange rates in effect at the time of their most recently
published financial statements.

Obligations of foreign issuers, including foreign branches of U.S. banks, will
not be acquired if MML Money Market's investment in such obligations would
exceed in the aggregate 25% of its net assets. Foreign obligations may be
affected by foreign governmental action, including imposition of currency
controls, interest limitations, withholding taxes, seizure of assets or the
declaration of a moratorium or restriction on payments of principal or interest.
Foreign branches of U.S. banks and foreign banks may provide less public
information than, and may not be subject to the same accounting, auditing and
financial record-keeping standards, as domestic banks.

MML Money Market will make portfolio investments primarily in anticipation of or
in response to changing economic and money market conditions and trends. Trading
activity is expected to be relatively low. However, it is anticipated that from
time to time, MML Money Market will take advantage of temporary disparities in
the yield relationships among the different segments of the money market or
among particular instruments within the same segment of the market to make
purchases and sales when MassMutual deems that such transactions will improve
the yield or the quality of the portfolio.
   
The high quality debt instruments in which MML Money Market invests may not
offer as high a yield as may be achieved from lower quality instruments having
less safety. While MML Money Market invests exclusively in First and Second Tier
Securities, an investment in MML Money Market is not without risk. If MML Money
Market disposes of an obligation prior to maturity, it may realize a loss or
gain. An increase in interest rates will generally reduce the value of portfolio
investments. In addition, investments are subject to the ability of the issuer
to make payment at maturity. MML Money Market will reassess whether a particular
security presents minimal credit risks in certain circumstances. For example, if
a security ceases to be a Second Tier Security, MML Money Market would dispose
of any such security as soon as practical.     

C.   MML MANAGED BOND FUND

The investment objective of MML Managed Bond is to achieve as high a total rate
of return on an annual basis as is considered consistent with the preservation
of capital.
   
Normally, the assets of MML Managed Bond will be invested primarily in
investment grade, publicly-traded, fixed income securities of such maturities as
MassMutual deems appropriate from time to time in light of market conditions and
prospects. Except when invested for defensive purposes, at least 80% of total
invested assets at market value at the time of a purchase will consist of U.S.
Government securities and investment grade quality debt securities which have
been rated in the top four rating categories by S&P (AAA, AA, A or BBB) or
Moody's (Aaa, Aa, A or Baa) or, if unrated, which are judged by MassMutual to be
of equivalent quality to securities so rated. For purposes of this Prospectus, a
rating of BBB by S&P includes a security that has been rated BBB- by S&P, and a
security rated Baa by Moody's includes a security that has been rated Baa3 by
Moody's. While debt securities rated BBB or Baa are investment grade securities,
they have speculative characteristics and are subject to greater credit risk,
and may be subject to greater market risk, than higher-rated investment grade
securities.     

In implementing the policies set forth in the preceding paragraph, MML Managed
Bond may invest in (1) obligations (payable in U.S. dollars) issued or
guaranteed as to principal and interest by the Government of Canada, a Province
of Canada, or any instrumentality or political subdivision thereof, provided
that no such investment will be made if it would result in more than 25% of MML
Managed Bond's net assets being invested in such securities, and (2) securities
of foreign issuers, provided however, MML Managed Bond may invest not more than
10% of its net assets in such securities, except as provided in (1) above.

If MML Managed Bond disposes of an obligation prior to maturity, it may realize
a loss or a gain. An increase in interest rates will generally reduce the value
of portfolio investments, and a decline in interest rates will generally
increase the value of portfolio investments. In addition, investments are
subject to the ability of the issuer to make payment at maturity.

Normally, the Fund's duration will range from four to seven years. Portfolio
changes will be accomplished primarily through the reinvestment of cash flows
and selective trading.
   
The portfolio of the Fund is managed by Mary E. Wilson, Senior Managing Director
of MassMutual, with which she has been associated since 1982. As such, she
oversees all public fixed income trading for MassMutual and its insurance
company subsidiaries.     

D.   MML BLEND FUND

The investment objective of MML Blend is to achieve as high a level of total
rate of return over an extended period of time as is considered consistent with
prudent investment risk and the preservation of capital.

The Advisers will adjust the mix of investments among its three market sectors
to capitalize on perceived variations in return potential produced by the
interaction of changing finan-

                                       10
<PAGE>
 
   
cial market and economic conditions. The Advisers expect that such adjustments
will normally be made in a gradual manner over a period of time. No investment
will be made that would result in more than 90% of MML Blend's net assets being
invested in the Equity Sector or in more than 50% of MML Blend's net assets
being invested in the Bond Sector. Up to 100% of MML Blend's net assets may be
invested in the Money Market Sector. No minimum percentage has been established
for any of the sectors.     

In addition to MML Blend's investment objective, each of its market sectors has
a specific investment objective. Within the Equity Sector, MML Blend will
attempt to achieve a superior total rate of return over an extended period of
time from both capital appreciation and current income. Within the Bond Sector,
MML Blend will attempt to achieve as high a total rate of return on an annual
basis as is considered consistent with the preservation of capital. Within the
Money Market Sector, MML Blend will attempt to achieve high current income, the
preservation of capital, and liquidity. The portfolio of the Fund is managed by
committee.
   
In seeking a high rate of return from dividends, interest income and capital
appreciation as well as in seeking to preserve capital, the Advisers intend to
engage in the active management of MML Blend's portfolio. (See "Investment
Practices of the Funds and Related Risks - Portfolio Management" on page 12). 
    

The portfolio of MML Blend will be invested in the following three market
sectors:

1.   Equity Sector
   
The Equity Sector generally invests in equity-type securities in a substantially
similar manner as described in the discussion of MML Equity on page 9.     

2.   Bond Sector
   
The Bond Sector generally invests in the types of bonds and other debt
securities described in the discussion of MML Managed Bond on page 10 with
maturities usually exceeding one year. The Bond Sector may also invest in debt
securities not described above, including lower quality securities and non-rated
securities acquired directly from issuers in direct placement transactions,
provided no such transaction shall cause such debt securities to exceed 10% of
MML Blend's total assets. Lower quality debt instruments generally provide
higher yields but are generally subject to greater market fluctuations and risk
of loss of income and principal than higher quality debt securities.     

3.   Money Market Sector

The Money Market Sector invests in money market instruments and other debt
securities with maturities generally not exceeding one year. For example, it may
invest in:
   
      (a)  U.S. Treasury Bills and other U.S. Government securities;

      (b)  obligations (payable in U.S. dollars) issued or guaranteed as to
           principal and interest by the Government of Canada, (such obligations
           may not exceed 25% of MML Blend's total assets);

      (c)  commercial paper, including variable amount master notes, having a
           rating at the time of purchase within the two highest grades as
           determined by Moody's (P-1 or P-2) or S&P (A-1 or A-2);

      (d)  publicly-traded bonds, debentures and notes having a rating within
           the four highest grades as determined by Moody's (Aaa, Aa, A or Baa)
           or S&P (AAA, AA, A or BBB); or

      (e)  securities of foreign issuers.

While debt securities rated BBB or Baa are investment grade securities, they
have speculative characteristics and are subject to greater credit risk, and may
be subject to greater market risk, than higher-rated investment grade
securities. During 1996, no debt securities were acquired by MML Blend which
were not rated at least BBB by S&P or Baa by Moody's.     
   
V.   Investment Practices Of The Funds And Related Risks

In managing their portfolios of investments, the Funds, pursuant to policies
adopted by the Board of Trustees or where considered appropriate by the
Advisers, may engage in various investment-related practices. The Funds'
significant investment practices, which are pursuant to non-fundamental policies
and therefore may be changed by the Board of Trustees without consent of
shareholders, regarding these investment transactions and practices are
discussed below. For further information see the Statement of Additional
Information.     

A.   DERIVATIVES TRANSACTIONS
   
Although each Fund is authorized to engage in transactions involving
derivatives, as more fully described in the Statement of Additional Information,
the Funds' use of derivatives, other than forward contracts, is minimal. The
Funds may use derivatives to attempt to: (a) protect against possible declines
in the market value of a Fund's portfolio resulting from downward trends in the
debt securities markets generally due to increasing interest rates; (b)
facilitate selling debt securities for investment reasons; (c) protect a Fund's
unrealized gains or limit unrealized losses in the value of its securities; (d)
establish a position in the debt securities markets as a temporary substitute
for purchasing or selling particular debt securities; (e) manage the effective
maturity or duration of fixed-income securities in a Fund's portfolio; or (f)
manage its exposure to changing security prices (collectively, "Derivatives
Transactions"). Most, if not all, of these Derivatives Transactions will involve
the portfolios of MML Managed Bond and the Bond Sector of MML Blend as MML Trust
has no present intent to enter into Derivatives Transactions with regard to MML
Money Market, MML Equity, or the Equity or Money Market Sectors of MML Blend.
The Funds will not use derivatives for speculative purposes.     

Each Fund may purchase or sell securities on a "when issued" or delayed delivery
or on a forward commitment basis ("forward contracts"). When such transactions
are negotiated, the price is fixed at the time of commitment, but delivery and
payment for the securities can take place 

                                       11
<PAGE>
 
a month or more after the commitment date. The securities so purchased or sold
are subject to market fluctuations, and no interest accrues to the purchaser
during this period. At the time of delivery, the securities may be worth more or
less than the purchase or sale price.
    
There can be no assurance that the use of forward contracts or other derivatives
by any of the Funds will assist it in achieving its investment objectives. Risks
inherent in the use of derivatives include: (1) the risk that interest rates and
securities prices will not move in the direction anticipated; (2) imperfect
correlation between the prices of forward contracts and the prices of the
securities being hedged; (3) the fact that skills needed to use these strategies
are different from those needed to select portfolio securities; and (4) forward
contracts involve a risk of a loss if the value of the security to be purchased
declines prior to the settlement date, which is in addition to the risk of
decline of the Funds' other assets.     

A Fund will not enter into a forward contract if as a result more than 25% of
the Fund's total assets would be in one or more segregated accounts covering
forward contracts.

B. PORTFOLIO MANAGEMENT
    
The Advisers intend to use trading as a means of managing the portfolios of the
Funds in seeking to achieve their investment objectives. The Advisers, on behalf
of the Funds, will engage in trading when they believe that the trade, net of
transaction costs, will improve interest income or capital appreciation
potential, or will lessen capital loss potential.     
    
Whether the goals discussed above will be achieved through trading depends on
the Advisers' ability to evaluate particular securities and anticipate relevant
market factors, including interest rate trends and variations from such trends.
Such trading places a premium on the Advisers' ability to obtain relevant
information, evaluate it properly and take advantage of their evaluations by
completing transactions on a favorable basis. If the Advisers' evaluations and
expectations prove to be incorrect, a Fund's income or capital appreciation may
be reduced and its capital losses may be increased. Portfolio trading involves
transaction costs, but, as explained above, will be engaged in when the Advisers
believe that the result of the trading, net of transaction costs, will benefit
the Funds.      

C. RESTRICTED AND ILLIQUID SECURITIES
    
None of the Funds currently expects to invest in restricted or illiquid
securities. However, each Fund may invest not more than 15% (10% in the case of
MML Money Market) of its net assets in illiquid securities. These policies do
not limit the purchase of securities eligible for resale to qualified
institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as
amended, provided that such securities are determined to be liquid by the Board
of Trustees, or by the Advisers pursuant to Board-approved guidelines. If there
is a lack of trading interest in particular Rule 144A securities, a Fund's
holdings of those securities may be illiquid, resulting in the possibility of
undesirable delays in selling these securities at prices representing fair
value.      

D. SECURITIES LENDING

MML Managed Bond and MML Blend may make loans of portfolio securities of not
more than 10% of their respective total assets taken at current value, thereby
realizing additional income. Although lending portfolio securities may involve
the risk of delay in recovery of the securities loaned or possible loss of
rights in the collateral should the borrower fail financially, loans will be
made only to borrowers deemed by MassMutual to be of good standing.

E. FEDERAL TAXES
    
The extent to which the Funds may enter into Derivatives Transactions and engage
in portfolio trading may be limited by the Internal Revenue Code's requirements
for qualification for regulated investment companies. It is each Fund's
intention to qualify as such. See "Certain Tax and Accounting Information" in
the Statement of Additional Information.     

F. CASH POSITIONS

Each Fund, other than MML Money Market, may hold cash or cash equivalents to
provide for liquidity (e.g. expenses and anticipated redemption payments) and so
that an orderly investment program may be carried out in accordance with the
Fund's investment policies. To provide liquidity or for temporary defensive
purposes, each Fund may invest any portion of its assets in investment grade
debt securities and MML Equity may also invest in non-convertible preferred
stocks. 

VI. Investment Restrictions


The following is a description of certain investment restrictions, and
exceptions to such restrictions, that apply to each Fund which may not be
changed without a vote of a majority of the outstanding shares of such Fund.
(For a description of additional investment restrictions, reference should be
made to the Statement of Additional Information.)

Each Fund will not:

(1) Pledge or mortgage assets taken at market to an extent greater than 15% of
the total assets of the Fund taken at cost;
    
(2) Borrow money, except from banks as a temporary measure for extraordinary or
emergency purposes (but not for the purpose of making investments), and except
to the extent that each Fund engages in financial futures transactions (as
described on pages 11-12) and in reverse repurchase agreements (as described in
the Statement of Additional Information), provided (a) that the aggregate amount
of all such borrowings at the time of borrowing does not exceed 10% of the total
assets of the Fund taken at cost, and (b) that immediately after the borrowing,
and at all times thereafter, there will be an asset coverage of at least 300%
for all of the Fund's borrowings (including all obligations under financial
futures contracts on debt obligations); and     

(3) Concentrate its investments in any one industry, as determined by the Board
of Trustees, and in this connection it will not acquire securities of companies
in any one industry if, immediately after giving effect to any such acquisition,
more 

                                       12
<PAGE>
 
than 25% of the value of the total assets of the Fund would be invested in such
industry, with the following exceptions:
    
    (a) In the case of MML Money Market there is no limitation in respect of
    certificates of deposit and bankers' acceptances (see "The Funds - MML
    Money Market Fund" on pages 9-10).     
    
    (b) MML Money Market, MML Managed Bond and the Bond Sector of MML Blend each
    may invest up to 40% of the value of their respective total assets in each
    of the electric utility and telephone industries. However, it currently is
    MassMutual's intent not to invest more than 25% of any one of these Fund's
    total assets in either the electric utility or telephone industries.     

VII. Investment Managers
    
MassMutual serves as investment manager of each Fund pursuant to a separate
investment management agreement executed by MassMutual and each Fund (the
"Management Agreements"). MassMutual also acts as the transfer agent and the
dividend paying agent. MassMutual is a mutual life insurance company organized
in 1851 under the laws of The Commonwealth of Massachusetts. MassMutual is
licensed to transact a life insurance business in all states of the United
States, the District of Columbia, Puerto Rico and certain Provinces of Canada.
MassMutual is also a registered investment adviser. At December 31, 1996
MassMutual, together with its subsidiaries, had total assets of approximately
$55.7 billion and in excess of $130.8 billion in assets under management.     
    
Under the Management Agreements, which are substantially identical, MassMutual
is authorized to engage in portfolio transactions on behalf of the Funds,
subject to such general or specific instructions as may be given by the Board of
Trustees. The Management Agreements provide that MassMutual will perform all
administrative functions relating to the Funds and will bear all expenses of the
Funds except: (1) taxes and corporate fees payable to government agencies; (2)
brokerage commissions (which may be higher than other brokers charge if paid to
a broker which provides brokerage and research services to the Advisers or for
use in providing investment advice and management to the Funds and other
accounts over which the Advisers exercise investment discretion) and other
capital items payable in connection with the purchase or sale of Fund
investments; (3) interest on account of any borrowings by the Funds; (4) fees
and expenses of Trustees of MML Trust who are not interested persons, as defined
in the Investment Company Act of 1940, as amended (the "1940 Act"), of the
Advisers or MML Trust; and (5) fees of the Funds' independent certified public
accountants.     
    
For providing the services and bearing the expenses described above, MassMutual
is paid a quarterly fee at the annual rate of .50% of the first $100,000,000 of
the average daily net asset value of each Fund, .45% of the next $200,000,000,
 .40% of the next $200,000,000 and .35% of any excess over $500,000,000.
MassMutual has unilaterally agreed to bear expenses of each Fund (other than the
management fee, interest, taxes, brokerage commissions and extraordinary
expenses) in excess of .11% of average daily net asset value through April 30,
1998. In 1996 MML Equity, MML Money Market, MML Managed Bond, and MML Blend paid
fees to MassMutual amounting to .38%, .49%, .48% and .37%, respectively, of
their average daily net assets during the year.     
    
Each Management Agreement between MassMutual and each Fund automatically
terminate: (1) unless its continuance is specifically approved at least annually
by the affirmative vote of a majority of the Board of Trustees, which
affirmative vote shall include a majority of the members of the Board who are
not interested persons (as defined in the 1940 Act) of MassMutual or of MML
Trust; or (2) upon its assignment. Under the terms of each Management Agreement,
each Fund recognizes MassMutual's control of the initials "MML" and each Fund
agrees that its right to use these initials is non-exclusive and can be
terminated by MassMutual at any time. Under each Management Agreement,
MassMutual's liability regarding its investment management obligations and
duties is limited to situations involving its willful misfeasance, bad faith,
gross negligence or reckless disregard of such obligations and duties.     
    
MassMutual has entered into sub-advisory agreements (the "Sub-Advisory
Agreements") whereby Babson manages the investment of the assets of MML Equity
and the Equity Sector of MML Blend. Babson is a registered investment adviser
that has been providing investment counseling to institutions and individuals
for over 50 years. As of December 31, 1996, Babson had over $7.6 billion of
assets under management. Babson is a wholly-owned subsidiary of DLB Acquisition
Corporation, a controlled subsidiary of MassMutual.     
    
Pursuant to the Sub-Advisory Agreements, MassMutual pays Babson (1) a quarterly
fee equal to an annual rate of .13% of the average daily net asset value of MML
Equity as of the close of each business day for the investment advisory services
Babson provides with respect to MML Equity and (2) a quarterly fee equal to an
annual rate of .13% of the average daily net asset value of the Equity Sector of
MML Blend as of the close of each business day for the investment advisory
services Babson provides with respect to the Equity Sector of MML Blend. The
Sub-Advisory Agreements automatically terminate upon the termination of the
respective Management Agreements between MassMutual and MML Equity and MML
Blend.     
    
Securities held by the Funds are also frequently held by the Advisers in their
investment accounts and by other investment companies for which the Advisers act
as investment advisers. If the same security is purchased or sold for any Fund
and such investment account or companies at the same time, such purchases or
sales normally will be combined, to the extent practicable, and will be
allocated as nearly as practicable on a pro rata basis in proportion to the
amounts to be purchased or sold for each. In determining the amounts to be
purchased or sold, the main factors to be considered will be the investment
objectives of the respective portfolios, the relative size of portfolio holdings
of the same or comparable security, availability of cash for investment by the
various portfolios and the size of their respective investment commitments. It
is believed that the ability of the Funds to participate in larger volume
transactions will, in most cases, produce better execution for the Funds. In
some cases, however, this procedure could have a detrimental effect on      

                                       13
<PAGE>
 
    
the price and amount of a security available to a Fund or the price at which a
security may be sold. It is the opinion of MML Trust's management that such
execution advantage and the desirability of retaining the Advisers as investment
managers of the Funds outweigh the disadvantages, if any, which might result
from this procedure.     

VIII. Capital Shares
    
MML Trust is a "series" company which is authorized to issue an unlimited number
of shares in separate series of the same class. To date, shares of five series
have been authorized, four of which constitute the interests in the four Funds
described in this Prospectus. Under MML Trust's Declaration of Trust, however,
the Board of Trustees is authorized to create new shares in addition to the
Funds without the necessity of a vote of shareholders of MML Trust. Each share
of a particular series represents an equal proportionate interest in that series
with each other share of the same series, none having priority or preference
over another. Each series shall be preferred over all other series in respect of
the assets allocated to that series. Each share of a particular series is
entitled to a pro rata share of any distributions declared by that series and,
in the event of liquidation, a pro rata share of the net assets of that series
remaining after satisfaction of outstanding liabilities. When issued, shares are
fully paid and nonassessable and have no preemptive, conversion or subscription
rights.     
    
MML Trust is not required to hold annual meetings of shareholders. Special
meetings may be called for purposes such as electing Trustees, voting on
management agreements, and with respect to such additional matters relating to
MML Trust as may be required by MML Trust's Declaration of Trust and the 1940
Act. Shareholders holding 10% of the shares of MML Trust may call a meeting to
be held to consider removal of Trustees. On any matter submitted to
shareholders, shares of each series entitle their holder to one vote per share
(with proportionate voting for fractional shares), irrespective of the relative
net asset values of the series' shares. On any matters submitted to a vote of
shareholders, all shares of MML Trust then entitled to vote shall be voted by
individual series, except that (i) when required by the 1940 Act, shares shall
be voted in the aggregate and not by individual series, and (ii) when Trustees
have determined that any matter affects only the interests of one or more
series, then only shareholders of such series shall be entitled to vote thereon.
Shareholder inquiries should be made by contacting the Secretary, MML Series
Investment Fund, 1295 State Street, Springfield, Massachusetts 01111.     
    
The assets of certain variable annuity and variable life insurance separate
accounts for which MassMutual or an affiliate is the depositor are invested in
shares of the Funds. Because these separate accounts are invested in the same
underlying Funds it is possible that material conflicts could arise between
owners of the variable life insurance contracts and owners of the variable
annuity contracts. Possible conflicts could arise if (i) state insurance
regulators should disapprove or require changes in investment policies,
investment advisers or principal underwriters or if the depositor should be
permitted to act contrary to actions approved by holders of the variable life or
variable annuity contracts under rules of the SEC, (ii) adverse tax treatment of
the variable life or variable annuity contracts would result from utilizing the
same underlying Funds, (iii) different investment strategies would be more
suitable for the variable annuity contracts than the variable life contracts, or
(iv) state insurance laws or regulations or other applicable laws would prohibit
the funding of both variable life and variable annuity separate accounts by the
same Funds.     

The Board of Trustees follow monitoring procedures which have been developed to
determine whether material conflicts have arisen and what action, if any, should
be taken in the event of such conflicts. If a material irreconcilable conflict
should arise between owners of the variable life insurance contracts and owners
of the variable annuity contracts, one or the other group of owners may have to
terminate its participation in the Funds. More information regarding possible
conflicts between variable annuity and variable life insurance contracts is
contained in the prospectuses for those contracts.
    
Under Massachusetts law, shareholders could, under certain circumstances, be
held personally liable for the obligations of MML Trust. However, MML Trust's
Declaration of Trust disclaims liability of the shareholders, Trustees, or
officers of MML Trust for acts or obligations of MML Trust, which are binding
only on the assets and property of MML Trust, and requires that notice of such
disclaimer be given in each agreement, obligation, or instrument entered into or
executed by MML Trust or Trustees of MML Trust. MML Trust's Declaration of Trust
provides for indemnification out of MML Trust property for all loss and expense
of any shareholder held personally liable for the obligations of MML Trust.
Thus, the risk of a shareholder incurring financial loss on account of
shareholder liability is considered remote since it is limited to circumstances
in which the disclaimer is inoperative and MML Trust itself would be unable to
meet its obligations.      

IX. Net Asset Value

The net asset value of each Fund's shares is determined once daily as of the
normal close of trading on the New York Stock Exchange (presently 4:00 p.m.) on
each day on which the Exchange is open for trading.

A. MML MONEY MARKET FUND

It is the intention of MML Money Market to maintain a per share net asset value
of $1.00, although this cannot be assured. Since the net income of MML Money
Market is declared as a dividend each time it is determined, the net asset value
per share of MML Money Market remains at $1.00 per share immediately after each
determination and dividend declaration. Any increase in the value of a
shareholder's investment in MML Money Market representing the reinvestment of
dividend income is reflected by an increase in the number of shares of MML Money
Market in the shareholder's account, which increase is recorded promptly after
the end of each calendar month. MML Money Market's portfolio instruments are
valued on the basis of amortized cost. 

B. OTHER FUNDS
    
Generally, the other three Funds value portfolio securities on the basis of
market value. For example, equity securities, including those traded on national
securities exchanges or the NASDAQ national market system, are valued by one or
more      

                                       14
<PAGE>
 
pricing services, as authorized by the Board of Trustees. Normally, the values
are based upon the last reported sale price of the security. Long-term bonds are
valued on the basis of valuations furnished by a pricing service, authorized by
the Board of Trustees, which determines valuations taking into account
appropriate factors such as institutional-size trading in similar groups of
securities, yield, quality, coupon rate, maturity, type of issue, trading
characteristics and other market data. Debt obligations with less than one year
but more than sixty days to maturity are valued on the basis of their market
value, and debt obligations having a maturity of sixty days or less are
generally valued at amortized cost when the Board of Trustees believes that
amortized cost approximates market value. If acquired, preferred stocks will be
valued on the basis of their market value if market quotations are readily
available. Futures contracts are valued based on market prices unless such
prices do not reflect the fair value of the contract, in which case they will be
valued by or under the direction of the Board of Trustees. In all other cases,
assets (including restricted securities) will be valued at fair value as
determined in good faith by the Board of Trustees, although the actual
calculations may be made by persons acting pursuant to the direction of the
Board of Trustees.

X. Sale And Redemption Of Shares

The shares of each Fund are sold at their net asset value (which in the case of
MML Money Market is expected to remain at $1.00) as next computed after receipt
of the purchase order, without the deduction of any selling commission or "sales
load."

Each Fund redeems its shares at their net asset value (which in the case of MML
Money Market is expected to remain at $1.00) as next computed after receipt of
the request for redemption. The redemption price for shares of MML Equity, MML
Managed Bond and MML Blend may be more or less than the shareholder's cost. No
fee is charged on redemption.

Redemption payments will be made within seven days after receipt of the written
request therefore by MML Trust, except that the right of redemption may be
suspended or payments postponed when permitted by applicable law and
regulations. 

XI. Tax Status
    
It is the policy of each Fund to comply, and in 1996 each Fund did comply, with
the provisions of the Internal Revenue Code applicable to regulated investment
companies. As a result, none of the Funds will be subject to federal income tax
on any net income or any capital gains to the extent they are distributed or are
deemed to have been distributed to shareholders.     

Regulations issued under Internal Revenue Code Section 817(h) require each of
the Funds to be adequately diversified in order for a variable annuity and
variable life contract funded by MML Trust to receive favorable tax treatment as
an annuity or life insurance contract. Among other requirements, the regulations
limit each Fund's investment in a single issuer to 55% of its assets; while this
requirement applies to U.S. Government securities, each government agency or
instrumentality is treated for this purpose as a separate issuer. The Funds
intend to comply with these diversification requirements. For further
information, see the Statement of Additional Information.

Tax consequences to investors in the separate investment accounts which are
invested in the Funds are described in the prospectuses for such
accounts.

XII. Dividends And Capital Gains Distributions

The Funds intend to declare capital gain and ordinary income dividends and to
distribute such dividends in a manner designed to avoid a 4% excise tax on
undistributed regulated investment company income, imposed by the Tax Reform Act
of 1986. The declaration and distribution policies specific to each Fund are
outlined below.

A. MML EQUITY FUND

Distributions, if any, are declared and paid annually. Distributions may be
taken either in cash or in additional shares of MML Equity at net asset value on
the day after the record date for the distribution, at the option of the
shareholder.

B. MML MONEY MARKET FUND

The net income of MML Money Market, as defined below, is determined as of the
normal close of trading on the New York Stock Exchange on each day on which the
Exchange is open, and all the net income so determined is declared as a dividend
to shareholders of record as of that time. Dividends are distributed promptly
after the end of each calendar month in additional shares of MML Money Market at
the then current net asset value, or in cash, at the option of the shareholder.

For this purpose the net income of MML Money Market (from the time of the
immediately preceding determination thereof) consists of all interest income
accrued on its portfolio, plus realized gains or minus realized losses, and less
all expenses and liabilities chargeable against income. Interest income includes
discount earned (including both original issue and market discount) on paper
purchased at a discount, less amortization of premium, accrued ratably to the
date of maturity. Expenses, including the compensation payable to MassMutual,
are accrued each day.

Should MML Money Market incur or anticipate any unusual expense, or loss or
depreciation which would adversely affect its net asset value per share or
income for a particular period, the Board of Trustees would at that time
consider whether to adhere to the present dividend policy described above or to
revise it in the light of the then prevailing circumstances. For example, if MML
Money Market's net asset value per share were reduced, or were anticipated to be
reduced, below $1.00, the Board of Trustees might suspend further dividend
payments until the net asset value returned to $1.00. Thus, such expenses or
losses or depreciation might result in an investor receiving no dividends for
the period during which he held his shares and in his receiving upon redemption
a price per share lower than that which he paid. 

                                       15
<PAGE>
 
C. MML MANAGED BOND AND MML BLEND FUNDS

Dividends out of net investment income are declared and paid quarterly. Capital
gains declarations and distributions of net capital gains, if any, for the year
are made annually. Distributions may be taken either in cash or in additional
shares of the applicable Fund at net asset value on the day after the record
date for the distribution, at the option of the shareholder. 

XIII. Investment Performance

Each of the Funds may from time to time advertise certain investment performance
figures. These figures are based on historical earnings and are not intended to
indicate future performance.

MML Money Market may quote its yield and its effective yield. The yield of MML
Money Market refers to the income generated by the Fund over a seven-day period
(which period will be stated in the advertisement). This income is then assumed
to be earned each week over a 52-week period. The effective yield is calculated
similarly, but the income earned by an investment in the Fund is assumed to be
reinvested.

MML Managed Bond, MML Blend and MML Equity may also quote yield. The yield for
each of those Funds refers to the net investment income earned by the Fund over
a 30-day period (which period will be stated in the advertisement). This income
is then assumed to be earned for a full year and to be reinvested each month for
six months. The resulting semi-annual yield is doubled.

Each of the Funds may advertise its total return and its holding period return
for various periods of time. Total return is calculated by determining, over a
period of time, which will be stated in the advertisement, the average annual
compounded rate of return that an investment in the Fund earned over that
period, assuming reinvestment of all distributions. Holding period return refers
to the percentage change in the value of an investment in a Fund over a period
of time (which period will be stated in the advertisement), assuming
reinvestment of all distributions. Total return and holding period return differ
from yield in that the return figures include capital changes in an investment
while yield measures the rate of net income generated by a Fund. Total return
differs from holding period return principally in that total return is an
average annual figure while holding period return is an aggregate figure for the
entire period.

These investment performance figures may be of limited use for comparative
purposes because they do not reflect charges imposed by the separate investment
accounts invested in the Funds which, if included, would decrease the
performance figures. For more information about the investment performance of
the Funds, see the Statement of Additional Information. 

XIV. Management Of MML Trust
    
The affairs of MML Trust are generally supervised by its Board of Trustees and
officers. As stated previously, MassMutual acts as investment manager of each of
the Funds and Babson is the sub-adviser to MML Equity and the Equity Sector of
MML Blend. In those capacities, MassMutual and Babson are part of the management
of MML Trust. For more information concerning the management of MML Trust,
reference should be made to the Statement of Additional Information.      
    
The name MML Series Investment Fund is the designation of the Trustees under a
Declaration of Trust dated December 19, 1984, as amended from time to time. The
obligations of MML Trust are not personally binding upon, nor shall resort be
had to the property of, any of the Trustees, shareholders, officers, employees
or agents of MML Trust, but MML Trust's property only shall be bound.     

                                       16
<PAGE>
 
                           MML Series Investment Fund


                                1295 State Street
                        Springfield, Massachusetts 01111

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

                               INVESTMENT MANAGER

                   Massachusetts Mutual Life Insurance Company
                                1295 State Street
                        Springfield, Massachusetts 01111

                             INVESTMENT SUB-ADVISOR
    
                        David L. Babson and Company, Inc.
                               One Memorial Drive
                         Cambridge, Massachusetts 02142     

                             INDEPENDENT ACCOUNTANTS

                            Coopers & Lybrand L.L.P.
                               2300 BayBank Tower
                        Springfield, Massachusetts 01101

                                    CUSTODIAN

                                  Citibank N.A.
                                 111 Wall Street
                            New York, New York 10005

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

    
            For Use With:
           . Massachusetts Mutual Variable Annuity Funds 1 and 2 
           . MML Bay State Variable Life Separate Accounts I, II, III, IV and V
           . MML Bay State Variable Annuity Separate Account 1
           . Massachusetts Mutual Variable Life Separate Accounts I and II
           . Massachusetts Mutual Variable Annuity Separate Accounts 1, 2 and 3
           . Massachusetts Mutual Separate Account C     

    
This Prospectus does not constitute an offering in any jurisdiction in which
such offering may not lawfully be made. No person is authorized to make any
representations in connection with this offering other than those contained in
this Prospectus.     
<PAGE>
 












                     [THIS PAGE INTENTIONALLY LEFT BLANK]
<PAGE>
 
                                                        Rule 485(b)
                                                        Registration No. 2-39334
                                                        File No. 811-2224



                          MML SERIES INVESTMENT FUND


                      STATEMENT OF ADDITIONAL INFORMATION
                      -----------------------------------

    
THIS STATEMENT OF ADDITIONAL INFORMATION IS NOT A PROSPECTUS. IT SHOULD BE READ
IN CONJUNCTION WITH THE PROSPECTUS OF MML SERIES INVESTMENT FUND DATED MAY 1,
1997 (THE "PROSPECTUS"). THE PROSPECTUS MAY BE OBTAINED FROM THE SECRETARY, MML
SERIES INVESTMENT FUND, 1295 STATE STREET, SPRINGFIELD, MASSACHUSETTS  01111.
     
    
THIS STATEMENT OF ADDITIONAL INFORMATION RELATES TO THE FOLLOWING FUNDS:

                          .  MML EQUITY FUND
                          .  MML MONEY MARKET FUND
                          .  MML MANAGED BOND FUND
                          .  MML BLEND FUND


                           DATED MAY 1, 1997     
<PAGE>
 
                               TABLE OF CONTENTS
<TABLE>    
<CAPTION>
                                                                         PAGE
                                                                         ----
<S>                                                                      <C>
GENERAL INFORMATION...................................................      1
INVESTMENT PRACTICES OF THE FUNDS AND RELATED RISKS...................      1
INVESTMENT RESTRICTIONS...............................................     10
MANAGEMENT OF THE MML TRUST...........................................     12
CONTROL PERSONS AND PRINCIPAL HOLDERS OF SECURITIES...................     19
INVESTMENT MANAGEMENT AND OTHER SERVICES..............................     19
BROKERAGE ALLOCATION..................................................     21
CAPITAL SHARES........................................................     23
PURCHASE, REDEMPTION AND PRICING OF                          
  SECURITIES BEING OFFERED............................................     23
TAX STATUS............................................................     25
CERTAIN TAX AND ACCOUNTING INFORMATION................................     25
INVESTMENT PERFORMANCE................................................     26
EXPERTS...............................................................     27
REPORT OF INDEPENDENT ACCOUNTANTS.....................................    F-1
FINANCIAL STATEMENTS OF THE TRUST                            
                                                             
  (1)  Statement of Assets and Liabilities                   
       As of December 31, 1996........................................    F-2
          MML Equity Fund; MML Money Market Fund; MML Managed  
          Bond Fund; and MML Blend Fund                        
                                                             
  (2)  Statement of Operations                               
       For the year ended December 31, 1996...........................    F-3
          MML Equity Fund; MML Money Market Fund; MML Managed  
          Bond Fund; and MML Blend Fund                        
                                                             
  (3)  Statement of Changes in Net Assets                     
       For the years ended December 31, 1996 and 1995.................    F-4
          MML Equity Fund; MML Money Market Fund; MML Managed 
          Bond Fund; and MML Blend Fund            
                                                             
  (4)  Financial Highlights...........................................    F-5
                                                             
  (5)  Schedules of Investments as of December 31, 1996...............    F-8
          MML Equity Fund; MML Money Market Fund; MML Managed 
          Bond Fund; and MML Blend Fund                       
                                                             
  (6)  Notes to Financial Statements..................................   F-20
                                                             
APPENDIX--Securities Ratings....................................... A-1 - A-4

</TABLE>     
<PAGE>
 
                            I. GENERAL INFORMATION
    
MML Series Investment Fund ("MML Trust") is a no-load, open-end, management
investment company having five separate series of shares. MML Trust was
established by Massachusetts Mutual Life Insurance Company ("MassMutual") for
the purpose of providing a vehicle for the investment of assets of various
separate investment accounts established by MassMutual and life insurance
company subsidiaries of MassMutual. This Statement of Additional Information
provides information regarding the following four diversified series (the
"Funds") of MML Trust: MML Equity Fund ("MML Equity"); MML Money Market Fund
("MML Money Market"); MML Managed Bond Fund ("MML Managed Bond"); and MML Blend
Fund ("MML Blend").      
    
Shares of MML Trust are not offered to the general public but solely to separate
investment accounts established by MassMutual and its life insurance company
subsidiaries, including MML Bay State Life Insurance Company ("MML Bay State").
MML Trust was formed as a voluntary association of the type known as a "business
trust" organized under the laws of The Commonwealth of Massachusetts pursuant to
an Agreement and Declaration of Trust dated December 19, 1984, as amended from
time to time (the "Declaration of Trust").      
    
MassMutual is responsible for providing all investment advisory, management, and
administrative services needed by the Funds pursuant to investment management
agreements. MassMutual has entered into investment sub-advisory agreements
pursuant to which David L. Babson & Company, Inc. ("Babson") manages the
investment of the assets of MML Equity and the assets of the Equity Sector
("Equity Sector") of MML Blend. MassMutual and Babson are each registered with
the Securities and Exchange Commission (the "SEC") as investment advisers
(MassMutual and Babson are referred to hereinafter collectively as the
"Advisers").      

            II. INVESTMENT PRACTICES OF THE FUNDS AND RELATED RISKS
    
The following information supplements and should be read in conjunction with the
discussion of the Funds' investment objectives, techniques and policies
described in the Prospectus. The fundamental investment objectives and
investment restrictions of each Fund (as described in the Prospectus and below)
may not be changed without a vote of a majority of such Fund's outstanding
shares. A "majority of the outstanding shares" of any Fund means the lesser of
(1) 67% of such Fund's outstanding shares present at a meeting of the
shareholders if more than 50% of the outstanding shares are present in person or
by proxy or (2) more than 50% of such Fund's outstanding shares. All other
investment policies and techniques of each Fund may be changed by the Board of
Trustees of MML Trust without a vote of shareholders. For example, such other
policies and techniques include investment in new types of debt instruments
which may be devised in the future, or which are presently in disuse but may
become more prominent in the future, and minor changes in investment policies
which may be made in response to changes in regulatory requirements which are
reflected in the present policies of such Fund. There is no assurance that the
investment objectives of the Funds will be realized. The success of these
objectives depends to a great extent upon the Advisers' ability to assess
changes in business and economic conditions.      

In managing their portfolios of investments, the Funds may purchase various
securities, investment related instruments and make use of various investment
techniques, including those described below.

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A. MML Managed Bond
    
It is a non-fundamental policy of MML Managed Bond to invest all of its assets
in investment grade securities as discussed in the Prospectus. While MML Managed
Bond has no current expectation to invest in non-investment grade securities,
MML Managed Bond may invest up to twenty percent (20%) of its assets in non-
investment grade debt instruments and preferred stocks. Lower quality debt
instruments involve greater volatility of price and yield, and greater risk of
loss of principal and interest, and generally reflect a greater possibility of
an adverse change in financial condition which would affect the ability of the
issuer to make payments of principal and interest. The market price for lower
quality securities generally responds to short-term corporate and market
developments to a greater extent than higher-rated securities because such
developments are perceived to have a more direct relationship to the ability of
an issuer of lower quality securities to meet its ongoing debt obligations. 
     
B. MML Blend -- Money Market Sector
    
The Money Market Sector of MML Blend may invest in commercial paper or notes
issued by companies with an unsecured debt issue outstanding having a rating at
the time of purchase within the three highest grades as determined by Moody's
Investors Services, Inc. (Aaa, Aa or A) or Standard & Poor's Ratings Group (AAA,
AA or A) and U.S. dollar denominated foreign commercial paper. This sector may
also invest in repurchase agreements and securities of foreign issuers, provided
that such securities of foreign issuers not be more than 10% of the Sector's
total assets. See "Investment Practices of the Fund and Related Risks -- Other
Investment Practices -- Foreign Securities" for a discussion of the risks
associated with investing in foreign securities.      

C. Derivatives
    
Although each Fund is authorized to engage in Derivatives Transactions as
indicated in the Prospectus, the Funds have no current expectation of entering
into such transactions in a material way other than the use of forward
contracts. Nonetheless, the following is a discussion of the Funds' authority to
enter into Derivative Transactions and a description of such transactions and
instruments. Examples of Derivative Transactions include entering into financial
futures transactions, writing covered call options on securities and futures or
covered puts on securities and futures and entering into forward contracts, swap
agreements, and other similar instruments (collectively referred to as
"Derivatives").      
    
The Funds may use Derivatives to try to: (a) protect against possible declines
in the market value of a Fund's portfolio resulting from downward trends in the
debt securities markets generally due to increasing interest rates; (b) protect
a Fund's unrealized gains or limit unrealized losses in the value of its
securities; (c) facilitate selling debt securities for investment reasons; 
(d) establish a position in the debt securities markets as a temporary
substitute for purchasing particular debt securities; (e) manage its exposure to
changing security prices; or (f) manage the effective maturity or duration of
fixed income securities in a Fund's portfolio (collectively "Derivatives
Transactions").      

     1. Forward Contracts -- Each Fund may purchase or sell securities on a
     "when issued," delayed delivery or on a forward commitment basis ("forward
     contracts"). When such transactions are negotiated, the price is fixed at
     the time of commitment, but delivery and payment for the securities can
     take place a month or more after the commitment date. The securities so
     purchased or sold are subject to market fluctuations, and no interest
     accrues to the purchaser during this period. At the time of delivery, the
     securities may be worth more or less than the purchase or sale price. The
     Funds use forward contracts to manage interest rate exposure, as a
     temporary substitute for purchasing or selling particular debt securities,
     or to take delivery of the underlying security rather than closing out the
     forward contract.

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     2. Currency Swaps -- The Funds may invest in debt securities of foreign
     issuers that are not denominated in U.S. dollars. In such cases, the Funds
     will enter into currency transaction either to hedge the foreign currency
     risks or to effectively convert the debt security to U.S. dollars.

     3. Interest Rate Swap Agreements -- Swap Agreements -- An interest rate
     swap agreement involves the exchange by the Fund with another party of
     their respective commitments to pay or receive interest, such as an
     exchange of floating rate payments for fixed rate payments with respect to
     a notional amount of principal. Interest rate and yield curve swaps may be
     used by MassMutual on behalf of a Fund as a hedging technique to preserve a
     return or spread on a particular investment or portion of its portfolio or
     to protect against any increase in the price of securities a Fund
     anticipates purchasing in the future. The Funds intend to use these
     transactions as hedges and not as speculative investments. A Fund usually
     will enter into such agreements on a net basis whereby the two payments of
     interest are netted with only one party paying the net amount, if any, to
     the other.
    
     4. Futures -- The Funds may enter into exchange-traded futures contracts
     for the purchase or sale of debt obligations in order to hedge against
     anticipated changes in interest rates. The purpose of hedging in debt
     obligations is to establish the effective rate of return on portfolio
     securities with more certainty than would otherwise be possible. A futures
     contract on debt obligations is a binding contractual commitment which, if
     held to maturity, will result in an obligation to make or accept delivery,
     during a particular month, of obligations having a standardized face value
     and rate of return. By entering into a futures contract for the purchase of
     a debt obligation, a Fund will legally obligate itself to accept delivery
     of the underlying security and pay the agreed price; by entering into a
     futures contract for the sale of a debt obligation it will legally obligate
     itself to make delivery of the security against payment of the agreed
     price. Positions taken in the futures markets are not normally held to
     maturity, but are instead liquidated through offsetting transactions which
     may result in a profit or a loss as explained below.      

     While futures contracts based on debt securities provide for the delivery
     and acceptance of securities, such deliveries and acceptances usually are
     not made. Generally, the futures contract is terminated by entering into an
     offsetting transaction. The closing out of a futures contract sale is
     effected by a Fund's entering into a futures contract purchase for the same
     aggregate amount of the specific type of financial instrument and the same
     delivery date. If the price in the sale exceeds the price in the offsetting
     purchase, the Fund immediately is paid the difference and thus realizes
     gain. If the offsetting purchase price exceeds the sale price, a Fund pays
     the difference and realizes the loss. Similarly, the closing out of a
     futures contract purchase is effected by a Fund's entering into a futures
     contract sale for the same aggregate amount of the specific type of
     financial instrument and the same delivery date. If the offsetting sale
     price exceeds the purchase price, the Fund realizes a gain, and if the
     purchase price exceeds the offsetting sale price, the Fund realizes a loss.
     Instead of entering into an offsetting position, however, a Fund might make
     or take delivery of the underlying securities whenever it appears
     economically advantageous for it to do so.
    
     Unlike the purchase or sale of a security, no price is paid or received by
     a Fund upon the purchase or sale of a futures contract. The Fund will incur
     brokerage fees in connection with its futures transactions, however, and
     will be required to deposit and maintain funds with a registered futures
     commission merchant or its custodian bank in a segregated account as margin
     to guarantee performance of its future obligations. A Fund initially will
     be required to deposit with its custodian bank or a registered futures
     commission merchant an amount of "initial      

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     margin" consisting of cash or U.S. Treasury bills currently equal to
     approximately 1 1/2% of the contract amount. The nature of initial
     margin in futures transactions is different from that of margin in security
     transactions in that futures contract initial margin does not involve the
     borrowing of funds by a Fund to finance the transactions. Rather, the
     initial margin is in the nature of a performance bond or good faith deposit
     on the contract which is returned to the Fund upon termination of the
     futures contract, assuming all contractual obligations have been satisfied.
     Subsequent payments to and from the broker will be made on a daily basis as
     the price of the underlying debt security fluctuates, making the long and
     short positions in the futures contract more or less valuable, a process
     known as "mark to the market".      

     To compensate for the imperfect correlation of movements in the price of
     debt securities being hedged and movements in the price of futures
     contracts, a Fund may buy or sell futures contracts in a greater dollar
     amount than the dollar amount of the securities being hedged if the
     historical volatility of the prices of such securities has been greater
     than the historical volatility of the futures contracts. Conversely, a Fund
     may buy or sell fewer futures contracts if the historical volatility of the
     price of the securities being hedged is less than the historical volatility
     of the futures contracts.

     5. Call and Put Options

     Call Options -- give the right to a person to buy a security at a stated
     price, or strike price, within a stated period. A call option can be
     exercised during the exercise period if the spot price rises above the
     strike price; if not, the option expires. A call option backed by the
     securities underlying the option is a covered call option. The owner of the
     security will normally sell covered call options to collect premium income
     or to reduce price fluctuations of the security. A covered call option
     limits the capital appreciation of the underlying security. As a writer of
     a call option, a Fund receives a premium, that may be an additional source
     of income for the Fund, for undertaking the obligation to sell the
     underlying security at a fixed price during the option period if the option
     is exercised. So long as the Fund remains obligated as a writer of a call,
     it forgoes the opportunity to profit from increases in the market price of
     the underlying security above the exercise price of the option, except
     insofar as the premium represents such profit.

     Each Fund may write covered call options which are traded on a national
     securities exchange with respect to securities in its portfolio, provided
     that at all times it will have in its portfolio the securities which it may
     be obligated to deliver if the option is exercised. Each Fund may write
     call options on securities in its portfolio in an attempt to realize a
     greater current return than would be realized on the securities alone or to
     provide greater flexibility in disposing of such securities. The Fund may
     also enter into "closing purchase transactions" in order to terminate its
     obligation as a writer of a call option prior to the expiration of the
     option. The writing of call options could result in increases in the Funds'
     portfolio turnover rate, especially during periods when market prices of
     the underlying securities appreciate.

     Put Options -- give the holder the right to sell the underlying securities
     to the Fund during the term of the option at a fixed exercise price up to a
     stated expiration date or, in the case of certain options, on such date.
     Put options are "covered" by a Fund, for example, when it has established a
     segregated account with its custodian bank consisting of cash, U.S.
     Government issued securities and other liquid high quality debt securities.
     Each Fund may also write straddles (combinations of calls and puts on the
     same underlying security). The writing of straddles generates additional
     premium income but may present greater risk.

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     6. Interest Rate Caps -- The purchase of an interest rate cap entitles the
     purchaser, to the extent a specific index exceeds a predetermined interest
     rate, to receive payments on a contractually-based notional amount from the
     party selling the interest rate cap. The purchase of an interest rate floor
     entitles the purchaser, to the extent that a specific index falls below a
     predetermined interest rate, to receive payments of interest on a
     contractually-based notional principal amount from the party selling the
     interest rate floor. In instances determined by the Board of Trustees, a
     Fund selling caps and floors would maintain in a segregated account cash or
     high-grade liquid assets having an aggregate net asset value at least equal
     to the full amount, accrued on a daily basis, of the Fund's obligations
     with respect to any caps or floors.      
    
     7. Other Derivatives -- The Funds may use other derivatives that are or
     become appropriate in the context of each Fund's investment objectives and
     in a manner and to an extent permitted by law and authorized by the Board
     of Trustees pursuant to guidelines proposed by MassMutual.      

 
Derivatives Limitations -- The policies limiting the use of Derivatives are non-
fundamental policies established by the Board of Trustees. The policies may be
changed by the Board without obtaining shareholder approval. MML Trust's current
non-fundamental policies are: (1) a Fund would not enter into a futures contract
if, immediately after entering into the futures contract, more than 5% of the
Fund's total assets would be committed to initial margin deposits on such
contracts; (2) a Fund will not purchase a put or call option on securities or
investment related instruments if, as a result, more than 5% of its total assets
would be attributable to premiums paid for such options; (3) a Fund would not
write a covered call or put option if as a result more than 20% of the Fund's
total assets would be in one or more segregated accounts covering call and put
options; and (4) a Fund would not enter into a forward contract if as a result
more than 25% of the Fund's total assets would be in one or more segregated
accounts covering forward contracts. Additionally, a Fund is required at all
times to maintain its assets at a level at least three times the amount of all
of its borrowings (the "300% asset coverage test"). Borrowings for this purpose
include obligations under any futures contract on a debt obligation.
    
Segregated Accounts -- If a Fund enters into forward contracts, it must cover
such contracts by, for example, establishing a segregated account with its
custodian bank consisting of cash, U.S. Government issued securities and other
liquid high quality debt securities. The assets of the account must have a value
equal to or greater than the aggregate amount of that Fund's commitment under
forward contracts (that is, greater than the aggregate of the purchase price of
the underlying security on the delivery date). If the value of the securities in
the segregated account declines, additional cash or high grade liquid assets
will be placed in the account so that the value of the account will equal the
amount of the Fund's commitments. At the time of entering into a forward
contract, the segregated account covering such forwards shall not exceed 25% of
the Fund's assets. As an alternative  to maintaining all or part of the
segregated account, a Fund could buy call or put options to "cover" the forward
contracts. Forward contracts involve a risk of a loss if the value of the
security to be purchased declines prior to the settlement date, which risk is in
addition to the risk of decline of the Fund's other assets. A Fund may realize
short-term gains or losses upon the sale of forward contracts.      

Risks in Using Derivatives -- There can be no assurance that the use of
Derivatives by any of the Funds will assist it in achieving its investment
objectives. Risks inherent in the use of futures, options, forward contracts,
and swaps include:

a. the risk that interest rates and securities prices will not move in the
direction anticipated;

b. imperfect correlation between the price of futures, options, forward
contracts and the prices of the securities being hedged;

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c. the fact that skills needed to use these strategies are different from those
needed to select portfolio securities;

d. the possible absence of a liquid secondary market for any particular
instrument at any time;

e. futures contracts and options can be highly volatile;

f. the writing of call options could result in increases in the Funds' portfolio
turnover rate, especially during periods when market prices of the underlying
securities appreciate;
 
g. the possible need to defer closing out certain hedged positions to avoid
adverse tax consequences;

h. the risk that a Fund will not be able to effect closing purchase transactions
as to call options it has written at any particular time or at any acceptable
price; and

i. forward contracts involve a risk of a loss if the value of the security to be
purchased declines prior to the settlement date, which is in addition to the
risk of decline of the Funds' other assets.

D. Other Investment Practices

     1. Repurchase Agreements -- MML Money Market, MML Managed Bond, and MML
     Blend may enter into repurchase agreements. While it is the current
     expectation that not more than 5% of each such Fund's total assets would be
     invested in repurchase agreements at any one time, each such Fund may
     invest not more than 10% of their respective total assets in such
     agreements. Under a repurchase agreement, a Fund acquires an obligation for
     a relatively short period (usually not more than one week) subject to the
     agreement of the seller (a member bank of the Federal Reserve System or a
     securities dealer) to repurchase the obligation at an agreed upon price and
     date. The repurchase price reflects an agreed-upon interest rate unrelated
     to the coupon rate on the purchased obligation. A repurchase agreement is
     considered to be loans by a Fund for purposes of its investment
     restrictions. Investments in repurchase agreements will be limited to
     transactions with financial institutions which are believed by MassMutual
     to present minimal credit risks. While the repurchase agreements will
     provide that the underlying security at all times shall have a value at
     least equal to the resale price stated in the agreement, if the seller
     defaults, the Fund could realize a loss on the sale of the underlying
     security. In addition, if the seller should be involved in bankruptcy or
     insolvency proceedings, the Fund may incur delay and costs in selling the
     underlying security or may suffer a loss of principal and interest if the
     Fund is treated as an unsecured creditor and required to return the
     underlying securities to the seller's estate.
    
     2. Reverse Repurchase Agreements -- MML Blend and MML Managed Bond may
     engage in reverse repurchase agreements, which are agreements in which MML
     Blend or MML Managed Bond, as the seller of the securities, agrees to
     repurchase them at an agreed upon time and price. Each such Fund will
     maintain a segregated account which will contain cash or high-grade debt
     obligations having a current market value at all times in an amount
     sufficient to repurchase securities pursuant to outstanding reverse
     repurchase agreements. Reverse repurchase agreements are borrowings subject
     to the 300% asset coverage test described in the Prospectus. See
     "Investment Restrictions" in the Prospectus.      
    
     3. Restricted and Illiquid Securities -- None of the Funds currently
     expects to invest in restricted or illiquid securities, although, as a non-
     fundamental policy, each Fund may invest no      

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     more than 15% (10% in the case of MML Money Market) of its net assets in
     illiquid securities. However, this policy does not limit the purchases of
     securities eligible for resale to qualified institutional buyers pursuant
     to Rule 144A under the Securities Act of 1933, as amended (the "Securities
     Act"), provided that such securities are determined to be liquid by the
     Board of Trustees or the Adviser if such determination is pursuant to 
     Board-approved guidelines.      
    
     Although the Board of Trustees is responsible for determining the liquidity
     of restricted securities, it is not required to specifically approve and
     review each restricted security recommended by the Advisers for the Funds'
     portfolios. With respect to Rule 144A securities, for example, the Board of
     Trustees is responsible for establishing guidelines for determining the
     liquidity and value of securities and monitoring the Adviser's
     implementation of the guidelines. Such guidelines have been adopted and
     take into account trading activity and the availability of reliable pricing
     information, among other factors. If there is a lack of trading interest in
     particular Rule 144A securities, the Fund's holdings of those securities
     may be illiquid, resulting in undesirable delays in selling these
     securities at prices representing their fair value. Securities not
     registered for sale to the general public but that can be resold to
     institutional investors may not be considered illiquid,  provided that a
     dealer or institutional trading market exists. The institutional trading
     market is relatively new and liquidity of the Funds' investments could be
     impaired if trading does not develop or declines.      

     Restricted securities frequently can be purchased at a discount from the
     price of unrestricted securities of the same class, and the valuation of
     such securities in the Funds' portfolios (which will be their fair value as
     determined in good faith by the Board of Trustees of MML Trust or pursuant
     to the direction of the Board of Trustees subject to its review) will
     generally reflect such discount in whole or in part until the restriction
     is eliminated. With the exceptions of Rule 144A securities and commercial
     paper, the Funds generally do not expect to purchase restricted securities
     unless the issuer has agreed to pay the expenses of registering such
     securities under the Securities Act. However, under some circumstances the
     Funds may dispose of such securities privately at a discount or pay the
     cost of registration. A considerable period may elapse between the time a
     Fund decides to sell restricted securities and the time a suitable
     purchaser is found or registration is effected. Any such lapse of time
     would reduce the Fund's flexibility and also delay its ability to dispose
     of such securities, thereby subjecting the Fund to the risk of a market
     decline in the interim or, in a thin market, a decline caused by the
     proposed sale itself. In disposing of restricted securities, the Funds may
     be underwriters as that term is defined in the Securities Act.
    
     4. Warrants -- MML Equity and MML Blend may each invest in warrants. A
     warrant typically gives the holder the right to purchase an underlying
     stock at a specified price for a designated period of time. Warrants may be
     a relatively volatile investment for the holder. The holder of a warrant
     takes the risk that the market price of the underlying stock may never
     equal or exceed the exercise price of the warrant. A warrant will expire
     without value if it is not exercised or sold during its exercise period. 
     
    
     5. Foreign Securities -- Generally, the Funds may invest not more than 10%
     of their respective net assets in the securities of foreign issuers,
     whether or not the securities are listed on a domestic or foreign exchange.
     It is the current expectation, however, that MML Equity will make no such
     investments. If such investments are made by MML Managed Bond or MML Blend,
     it is presently expected that no more than 5% of the Fund's respective net
     assets will be invested in such securities. Investments in Canadian
     securities have their own limitations as set forth in the Prospectus.      

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     In making foreign investments, each Fund will be subject to a number of
     factors and risks not generally associated with investments in domestic
     securities. For example, foreign securities usually are denominated in
     foreign currencies which means that their value will be affected favorably
     or unfavorably by changes in the strength of the U.S. dollar relative to
     other currencies as well as to other factors that affect security prices.
     Moreover, foreign issuers are not subject to uniform legal, accounting,
     auditing, and financial standards and requirements comparable to those
     applicable to U.S. issuers. Other risks include:  unfavorable political or
     economic developments, applicability of less stringent regulation of
     foreign securities markets, the availability of less information about the
     issuer of the security in question, possible seizure, expropriation or
     nationalization of foreign assets, the imposition of foreign withholding
     tax on dividend or interest payments, greater expenses because of the
     increased transaction costs on non-U.S. securities markets and the
     increased costs of maintaining the custody of foreign securities. Foreign
     securities markets also have different clearance and settlement procedures.
     
     6. U.S. Government Obligations -- Obligations issued by the U.S. Government
     which MML Money Market, MML Managed Bond and MML Blend may purchase include
     U.S. Treasury bills, notes and bonds having no more than one year remaining
     to maturity. At present, obligations of United States agencies or
     instrumentalities which MassMutual intends to purchase for the portfolio of
     MML Money Market include principally obligations of Government National
     Mortgage Association (which are backed by the full faith and credit of the
     United States) and obligations of the Federal National Mortgage Association
     and the Federal Home Loan Banks (which may be backed only by the credit of
     the issuer itself).

     7. Money Market Instruments: Large Denominations -- Certain money market
     instruments are available only in relatively large denominations, and
     others may carry higher yields if purchased in relatively large
     denominations. For example, yields on certificates of deposit for
     $1,000,000 or over could be higher than yields on certificates of deposit
     for less than $1,000,000. Also, it is believed by MassMutual that an
     institutional purchaser of money market instruments who has the ability to
     invest relatively large sums on a regular basis may have investment
     opportunities that are not available to those who invest smaller sums less
     frequently. Certain of the investment restrictions of the Funds, and in
     particular MML Money Market, limit the percentage of its assets which may
     be invested in certain industries or in securities of any issuer.
     Accordingly, while MML Money Market has relatively small net assets and net
     cash flow from sales and redemptions of shares, it may be unable to invest
     in money market instruments paying the highest yield available at a
     particular time.
    
     8. MML Money Market Investments -- All of MML Money Market's assets will
     qualify as Eligible Securities, which include both "First Tier" and "Second
     Tier" Securities, at the time of their purchase. Eligible Securities may
     also include certain long term securities with, at the time of purchase, a
     remaining maturity of 397 days or less, provided the issuer has received
     from a nationally recognized statistical rating organization, such as
     Standard & Poor's Ratings Group ("S&P") or Moody's Investors Services,
     Inc. ("Moody's"), a rating with respect to short term obligations in one of
     the top two rating categories, or provided the issuer is similarly rated
     with respect to a class of short-term securities that is comparable in
     priority and security. A security qualifies as a First Tier Security if two
     nationally recognized statistical rating organizations ("NRSROs") have both
     given it their highest ratings, even if other NRSROs have rated it lower,
     or if one NRSRO has given it the highest rating, but only if the security
     has been rated by only the one NRSRO. In addition to S&P and Moody's, other
     NRSROs include:  Duff & Phelps, Inc., Fitch Investors, Inc., IBCA Limited
     and IBCA, Inc. A Second Tier Security is one that is rated in the second
     highest rating category by one or more NRSROs. In certain circumstances,
     unrated securities may qualify as First or Second Tier Securities if MML
     Trust's Board of Trustees      

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<PAGE>
     
     determines that such securities are of comparable quality to First or
     Second Tier Securities and the purchase of such unrated securities is
     approved or ratified by the Board of Trustees. Purchases of securities that
     have only been rated by one NRSRO also must be approved or ratified by MML
     Trust's Board of Trustees.     
    
     MML Money Market generally is prohibited from investing more than 5% of its
     total assets in the securities of one issuer. The 5% limit also applies to
     investments in bank instruments that are securities, such as certificates
     of deposits, bankers acceptances and letters of credit. After giving effect
     to the securities collateralizing a repurchase agreement, a fund may not
     invest more than 5% of its total assets in any one issuer, including the
     issuer of securities collateralizing the repurchase agreement. Where the
     underlying securities are not U.S. Government securities, they must be
     First Tier securities at the time the agreement is entered into. If the
     repurchase agreement is fully collateralized, the fund need look solely to
     the underlying securities to determine whether it meets the diversification
     test. A safe harbor to the 5% diversification limitation permits a fund to
     invest more than 5% of its total assets in First Tier Securities of a
     single issuer for up to 3 business days after the purchase to allow a fund
     more flexibility, such as, to invest large cash inflows. This "safe harbor"
     can only be used by a fund for one investment at a time and is only
     available with respect to 25% of the fund's total assets.      

     If MassMutual becomes aware that any unrated security or Second Tier
     Security has received a rating by any NRSRO below its second highest rating
     category, MassMutual will either (1) dispose of the security within 5
     business days and so notify the Board of Trustees, or (2) immediately call
     a meeting of the Board to reassess whether such security presents a minimal
     credit risk. If a First Tier Security ceases to be a First Tier Security,
     MassMutual will reassess promptly whether such security continues to
     present minimal credit risk. No reassessment is necessary if MassMutual
     promptly determines that it would be in the best interest of the Fund to
     sell such security and promptly does so. MML Money Market must dispose of
     defaulted securities and securities that are no longer Eligible Securities
     unless the Board determines it would not be in the best interest of the
     fund. The Board may take into account market conditions that "could affect
     the orderly disposition of the security" (i.e. a fund would not necessarily
     have to dispose of the security in a "fire sale"). If MML Money Market
     holds one or more defaulted securities that, immediately before the
     default, accounted for one half of one percent or more of fund assets, it
     must promptly notify the SEC of this fact and indicate what action it
     intends to take.

     9. Lower Quality Debt Instruments and Preferred Stock -- MML Managed Bond
     and MML Blend may invest in debt instruments and preferred stock not rated
     in the top four rating categories by S&P or Moody's. MML Managed Bond may
     invest not more than 20% of its total invested assets in such investments
     and MML Blend may invest not more than 10% of its total assets in such
     investments. Lower quality debt instruments involve greater volatility of
     price and yield, and greater risk of loss of principal and interest, and
     generally reflect a greater possibility of an adverse change in financial
     condition which would affect the ability of the issuer to make payments of
     principal and interest. The market price for lower quality securities
     generally responds to short-term corporate and market developments to a
     greater extent than higher-rated securities because such developments are
     perceived to have a more direct relationship to the ability of an issuer of
     lower quality securities to meet its ongoing debt obligations. Because of
     the relatively high risks associated with investments in lower quality
     securities, an investor should carefully consider the manner in which MML
     Managed Bond and MML Blend seeks to achieve their respective investment
     objectives and such investor's ability to assume these risks before
     investing in MML Managed Bond or MML Blend.

                                       9
<PAGE>
 
     10. Investment Basket -- The Board of Trustees, notwithstanding any of the
     investment restrictions set forth in this Statement of Additional
     Information or those set forth in the Prospectus, except those imposed as a
     matter of law, may authorize one or more Funds to invest in any security or
     investment related instrument, or to engage in investment related
     transactions or practices, such as newly developed debt instruments or
     hedging programs, provided that the Board has determined that to do so is
     consistent with the Fund's investment objectives and policies, has adopted
     reasonable guidelines for use by the Fund's Advisers, and provided further
     that at the time of making such an investment or entering into such
     transaction, such investments or instruments account for no more than 10%
     of the Fund's total assets. MML Trust has no current plans to use this
     authority.

     11. Variable Rate Master Demand Notes -- While the Money Market Sector of
     MML Blend may purchase variable rate master demand notes, it has never done
     so and has no current intention of doing so in the foreseeable future.

     12. Trading Activity -- It is the policy of MML Equity not to invest for
     the purpose of exercising management or control. It is also the policy of
     MML Equity not to engage in arbitrage activities. In seeking a high rate of
     return from interest income and capital appreciation as well as in seeking
     to preserve capital values, MassMutual intends to engage in the active
     management of MML Managed Bond's portfolio. MML Money Market will make
     portfolio investments primarily in anticipation of or in response to
     changing economic and money market conditions and trends. Trading activity
     is expected to be relatively low. However, it is anticipated that from time
     to time MML Money Market will take advantage of temporary disparities in
     the yield relationships among the different segments of the money markets
     or among particular instruments within the same segment of the market to
     make purchases and sales when management deems that such transactions will
     improve the yield or the quality of the portfolio.
    
     The Advisers intend to use trading as a means of managing the portfolio of
     MML Blend in seeking to achieve its investment objective. Portfolio trading
     involves transaction costs, but will be engaged in when the Advisers
     believe that the result of the trading, net of transaction costs, will
     benefit the Fund.      

                          IV. INVESTMENT RESTRICTIONS
    
The following is a description of certain restrictions on investments of the
Funds (in addition to those described in the Prospectus) which may not be
changed without a vote of a majority of the outstanding shares of the applicable
Fund.      

Each Fund will not:

     1. Make an investment in the securities of any issuer if such investment
     when made would cause more than 5% of the value of the total assets of the
     Fund to be invested in such securities (other than U.S. Government
     securities), or, in the case of MML Equity Fund, would cause more than 10%
     of the outstanding securities of any class of such issuer to be held by MML
     Equity;
    
     2. Purchase securities on margin, except for such short-term credits as are
     necessary for the clearance of transactions, and except that each Fund may
     deposit and maintain funds with its custodian or brokers as margin in
     connection with its use of financial futures contracts (see "Investment
     Practices of the Funds and Related Risks - Derivatives");      

                                       10
<PAGE>
 
    
     3. Purchase commodities or commodity contracts, except to the extent that
     each Fund may enter into financial futures contracts (see the Prospectus
     and "Investment Practices of the Funds and Related Risks - Derivatives");
     
     4. Purchase the securities of companies which (including predecessors) are
     less than three years old, if such purchase would cause more than 5% of the
     value of the total assets of the Fund to be invested in such companies;

     5. Hold more than 10% of the voting securities of any one company;

     6. Purchase or hold the securities of any company, if to the knowledge of
     the Board of Trustees of MML Trust, persons who are officers or directors
     of MassMutual or officers or Trustees of MML Trust, and who individually
     own more than 1/2 of 1% of the securities of that company, together own
     more than 5% of such securities;

     7. Make short sales of securities;
    
     8. Write, purchase or sell puts, calls or combinations thereof, except:
     each Fund may write call options on the securities in its portfolio and
     enter into closing purchase transactions with respect thereto (see
     "Investment Practices of the Funds and Related Risks - Derivatives - Call
     and Put Options");      

     9. Make loans to any officer, Trustee or employee of the Trust or to any
     officer, director or employee of MassMutual, or to MassMutual;

     10. Purchase or sell real estate or interests in real estate, although it
     may purchase and sell marketable securities secured by, or of companies
     investing or dealing in, real estate;

     11. Invest in securities of other investment companies, except (A) as part
     of a merger, consolidation or other corporate acquisition, or (B) by
     purchases in the open market at no more than customary brokers'
     commissions, as a result of which not more than 5% of the value of the
     total assets of the Fund would be so invested and no more than 3% of the
     total outstanding voting stock of any one investment company would be held;

     12. Participate in the underwriting of securities, except to the extent
     that each Fund may be deemed an underwriter under federal securities laws
     by reason of acquisitions or distributions of portfolio securities (e.g.
     investments in restricted securities and instruments subject to such limits
     as imposed by the Board and/or law);

     13. Make loans, except (i) through the acquisition of bonds, debentures,
     notes or other evidences of indebtedness in which the Fund is authorized to
     invest, (ii) in the case of MML Money Market, MML Managed Bond and MML
     Blend, through repurchase agreements (repurchase agreements of each such
     Fund maturing in more than seven days not to exceed 10% of the value of the
     total assets of such Fund), and (iii) in the case of MML Managed Bond and
     MML Blend, through the lending of portfolio securities with respect to not
     more than 10% of the total assets of each such Fund taken at current value.
     (The present intention is that securities loans would be made to broker-
     dealers only pursuant to agreements requiring that the loans be
     continuously secured by collateral in cash or U.S. Government securities at
     least equal at all times to the market value of the securities lent. The
     borrower pays the Fund an amount equal to any interest or dividends on the
     securities lent. The Fund also receives a portion of the interest on the
     securities purchased with the cash collateral (high-grade interest-bearing
     short-term obligations), 

                                       11
<PAGE>
 
     or a fee from the borrower. Although voting rights, or rights to consent,
     with respect to the securities lent pass to the borrower, the Fund retains
     the right to call the loans at any time on reasonable notice, and it will
     do so in order to vote the securities on a material event affecting the
     investment. Such loans may also be called in order to sell the securities
     involved);

     14. Issue senior securities, except to evidence borrowings permitted by
     investment restriction (2) described in the Prospectus, or

     15. Pledge or mortgage assets at market to an extent greater than 15% of
     the total assets of the Fund taken at cost.

                          IV. MANAGEMENT OF MML TRUST
    
MML Trust has a Board of Trustees, a majority of which must not be "Interested
Persons" as defined in the Investment Company Act of 1940 as amended (the "1940
Act"). The Board of Trustees has established an Advisory Board that has advisory
functions only as to investments made by MML Trust. Trustees of MML Trust,
members of the Advisory Board, and principal officers of MML Trust are listed
below together with information on their age, address, positions with MML Trust,
principal occupations during the past five years and other principal business
affiliations.      

                                       12
<PAGE>
 
    
Gary E. Wendlandt/*/         Chairman and Trustee of MML Trust 
1295 State Street
Springfield, MA 01111
Age: 46      
    
     Chief Investment Officer (since 1993) and Executive Vice President,
     MassMutual; Chairman and Chief Executive Officer, MassMutual Institutional
     Funds; Chairman (since 1995), President (1983-1995) and Trustee, MassMutual
     Corporate Investors (closed-end investment company); Chairman (since 1995),
     President (1988-1995) and Trustee, MassMutual Participation Investors
     (closed-end investment company); Chairman (since 1996), Antares Leveraged
     Capital Corp. (finance company); Chairman, HYP Management, Inc. (managing
     member of MassMutual High Yield Partners LLC) and MMHC Investment, Inc.
     (investor in MassMutual High Yield Partners LLC); Advisory Board Member
     (since 1996), MassMutual High Yield Partners LLC (high yield bond fund);
     President and Director (since 1995), DLB Acquisition Corporation (holding
     company for investment advisers); President and Chief Executive Officer
     (1994-1996), Director (1992-1996), Concert Capital Management, Inc. (former
     indirect investment advisory subsidiary of MassMutual Holding Company);
     Director, Oppenheimer Acquisition Corporation (investment advisory holding
     company); Supervisory Director, MassMutual/Carlson CBO N.V. Inc.
     (collateralized bond fund); Director (since 1994), MassMutual Corporate
     Value Partners Limited (investor in debt and equity securities) and
     MassMutual Corporate Value Limited (parent of MassMutual Corporate Value
     Partners Limited); Chairman (since 1994) and Director (since 1993), MML
     Realty Management Corporation; Chairman (since 1994), Chief Executive
     Officer (1994-1996), Cornerstone Real Estate Advisers, Inc. (wholly-owned
     real estate investment adviser subsidiary of MassMutual Holding Trust);
     Director, Merrill Lynch Derivative Products, Inc.; Chairman (1994-1995) and
     Director (1993-1995), MML Real Estate Corporation.      
    
Ronald J. Abdow              Trustee of MML Trust
1400 Elm Street
West Springfield, MA 01089
Age: 65       

     President, Abdow Corporation (operator of restaurants); General Partner,
     Grove Investment Group (apartment building syndicator); Trustee, Abdow G&R
     Trust and Abdow G&R Co. (owners and operators of restaurant properties);
     Partner, Abdow Partnership, Abdow Auburn Associates, and Abdow Hazard
     Associates (owners and operators of restaurant properties);  Trustee (since
     1994), MassMutual Institutional Funds (open-end investment company).
    
Mary E. Boland               Trustee of MML Trust
67 Market Street
Springfield, MA 01102
Age: 57       
    
     Attorney at Law, Egan, Flanagan and Cohen, P.C. (law firm), Springfield,
     MA;  Director (since 1995), Trustee (until 1995), SIS Bank (formerly,
     Springfield Institution for Savings); Trustee (since 1994), MassMutual
     Institutional Funds (open-end investment company).      

- --------------------
/*/ Trustee who is an "interested person" of MML Trust within the definition set
forth in Section 2(a)(19) of the 1940 Act.

                                       13
<PAGE>
 
    
Richard G. Dooley/*/         Vice Chairman and Trustee of MML Trust
1295 State Street
Springfield, MA  01111
Age: 67      
    
     Consultant (since 1993), Executive Vice President and Chief Investment
     Officer (1978-1993), MassMutual; Director (since 1996), Investment
     Technology Group, Inc.; Director, The Advest Group, Inc. (financial
     services holding company), Hartford Steam Boiler Inspection and Insurance
     Co., New England Education Loan Marketing Corporation; Director, Kimco
     Realty Corp. (shopping center ownership and management); Director (since
     1993), Jefferies Group, Inc. (financial services holding company); Director
     and Vice President, Oppenheimer Acquisition Corporation (investment
     advisory holding company); Trustee (since 1996), MassMutual Institutional
     Funds (open-end investment company); Vice Chairman (since 1995), Chairman
     (1982-1995), MassMutual Corporate Investors, and Vice Chairman (since
     1995), Chairman (1988-1995), MassMutual Participation Investors (closed-end
     investment companies); Director (1992-1995), Chairman (1982-1992) Concert
     Capital Management, Inc. (former indirect investment advisory subsidiary of
     MassMutual); Director (1993-1995), Luxonen S.A. (Swedish investment fund);
     Supervisory Director (1991-1995), MassMutual/Carlson CBO N.V. Inc.
     (collateralized bond fund); Director (1984-1993), MML Real Estate
     Corporation (real estate management subsidiary of MassMutual Holding
     Company) and MML Realty Management Corporation (subsidiary of MassMutual
     Holding Company to manage real estate projects).      
    
F. William Marshall, Jr.     Trustee of MML Trust
1441 Main Street
Springfield, MA 01102
Age: 55      

     President, Chief Executive Officer and Director (since 1993), SIS Bank
     (formerly, Springfield Institution for Savings); Chairman and Chief
     Executive Officer (1990-1993), Bank of Ireland First Holdings, Inc. and
     First New Hampshire Banks; Trustee (since 1996), MassMutual Institutional
     Funds (open-end investment company).
    
Charles J. McCarthy          Trustee of MML Trust
181 Eton Road
Longmeadow, MA 01106
Age: 73      

     Proprietor, Synectics Financial Company (venture capital activities,
     business consulting and investments); Trustee (since 1994), MassMutual
     Institutional Funds (open-end investment company).

- --------------------
/*/ Trustee who is an "interested person" of MML Trust within the definition set
forth in Section 2(a)(19) of the 1940 Act.

                                       14
<PAGE>
 
    
John H. Southworth           Trustee of MML Trust
195 Eton Road
Longmeadow, MA 01106
Age: 69      

     Chairman (since 1993) and President (1984-1992), Southworth Company
     (manufacturer of paper and calendars); Director (since 1995), Trustee
     (until 1995), SIS Bank (formerly, Springfield Institution for Savings);
     Trustee (since 1994), MassMutual Institutional Funds (open-end investment
     company).
    
Richard H. Ayers             Advisory Board Member
1000 Stanley Drive
New Britain, CT 06053
Age: 54      
    
     Adviser to Chairman (since 1997), Chairman and Chief Executive Officer
     (1989-1996) and Director (since 1985), The Stanley Works (manufacturer of
     tools, hardware and specialty hardware and specialty hardware products);
     Director (since 1986), Southern New England Telecommunications Corp.;
     Director, (since 1988) Perkin-Elmer Corp.; Trustee (since 1996), MassMutual
     Institutional Funds (open-end investment company).      
    
David E. A. Carson           Advisory Board Member
850 Main Street
Bridgeport, CT 06604
Age: 62      
    
     President and Chief Executive Office, People's Bank; Director, United
     Illuminating Co.; Trustee, American Skandia Trust (open-end investment
     company); Trustee (since 1996), MassMutual Institutional Funds (open-end
     investment company).      
    
Richard W. Greene            Advisory Board Member
University Of Rochester
Rochester, NY 14627
Age: 61      
    
     Executive Vice President and Treasurer (since 1986), University of
     Rochester (private university); Trustee (since 1996), MassMutual
     Institutional Funds (open-end investment company).      
    
Beverly C. L. Hamilton       Advisory Board Member
515 South Flower Street
Los Angeles, CA 90071
Age: 50      
    
     President, ARCO Investment Management Co.; Vice President, Atlantic
     Richfield Company; Director (since 1992), Connecticut Natural Gas;
     Director, Emerging Markets Growth Fund (closed-end investment company);
     Trustee (since 1996), MassMutual Institutional Funds (open-end investment
     company).      

                                       15
<PAGE>
 
    
Stuart H. Reese              President of MML Trust
1295 State Street
Springfield, MA 01111
Age:  41      
    
     Executive Director (since 1997), Senior Vice President (1993-1997),
     MassMutual; President (since 1995), Executive Vice President (1993-1995),
     MassMutual Corporate Investors and MassMutual Participation Investors
     (closed-end investment companies); Director (since 1996), Antares Leveraged
     Capital Corp. (finance company) and Charter Oak Capital Management, Inc.
     (investment adviser); President and Director (since 1996), HYP Management
     Inc. (managing member of MassMutual High Yield Partners LLC), and MMHC
     Investment Inc. (investor in MassMutual High Yield Partners LLC); President
     (since 1995), MassMutual Institutional Funds (open-end investment company);
     Director (since 1994), MassMutual Corporate Value Partners Limited
     (investor in debt and equity securities) and MassMutual Corporate Value
     Limited (parent of MassMutual Corporate Value Partners Limited);
     Supervisory Director (since 1994), MassMutual/Carlson CBO N.V. Inc.
     (collateralized bond fund); Director (1994-1996), Pace Industries (aluminum
     die caster); Vice President and Managing Director (1990-1992), Capital
     Markets Group of Aetna Life & Casualty Company; Chairman and President
     (1990-1993), Aetna Financial Services, Inc.      

    
Mary E. Wilson               Senior Vice President of MML Trust
1295 State Street
Springfield, MA 01111
Age: 43      
    
     Senior Managing Director (since 1996), Vice President and Managing Director
     (1991-1996), MassMutual; Senior Vice President (since 1996), HYP
     Management, Inc. (managing member of MassMutual High Yield Partners LLC)
     and MMHC Investment, Inc. (investor in MassMutual High Yield Partners LLC);
     Vice President, MassMutual Participation Investors (closed-end investment
     company); Vice President (since 1992), MassMutual Corporate Investors; Vice
     President (1991-1995) Oppenheimer Investment Grade Bond Fund.      
    
Hamline C. Wilson            Vice President and Chief Financial
1295 State Street                  Officer of MML Trust
Springfield, MA 01111
Age: 59      
    
     Senior Managing Director (since 1996), Vice President and Managing Director
     (1989-1996), MassMutual; Vice President and Chief Financial Officer (since
     1994), MassMutual Institutional Funds (open-end investment company); Vice
     President and Chief Financial Officer (since 1988), MassMutual Corporate
     Investors and MassMutual Participation Investors (closed-end investment
     companies); Investment Officer (1992-1996), Vice President (1983-1992),
     Concert Capital Management, Inc.      

                                       16
<PAGE>
 
    
Stephen L. Kuhn              Vice President and Secretary
1295 State Street                    of MML Trust
Springfield, MA 01111
Age: 50      
         
     Vice President and Associate General Counsel, MassMutual; Vice President
     and Secretary, MassMutual Institutional Funds, MassMutual Participation
     Investors and MassMutual Corporate Investors; President, MassMutual/Carlson
     CBO N.V. Inc. (collateralized bond fund); Assistant Secretary (since 1996),
     Antares Leveraged Capital Corp.; Chief Legal Officer and Assistant
     Secretary (since 1995), DLB Acquisition Corporation (holding company for
     investment advisers); Assistant Clerk (1994-1996), Chief Legal Officer
     (1993-1996), and Clerk (1992-1994), Concert Capital Management, Inc.     
    
Nancy S. Muise               Vice President of MML Trust
1295 State Street
Springfield, MA 01111
Age: 47      

     Second Vice President, MassMutual.
    
Raymond B. Woolson           Treasurer of MML Trust
1295 State Street
Springfield, MA 01111
Age: 38      
    
     Senior Managing Director (since 1996), Second Vice President (1992-1996),
     Director/Fund Account Administration (1989-1992), MassMutual; Treasurer,
     MassMutual Corporate Investors, MassMutual Participation Investors and
     MassMutual Institutional Funds; Vice President and Chief Financial Officer
     (since 1995, 1996), HYP Management, Inc. (managing member of MassMutual
     High Yield Partners LLC) and MMHC Investment Inc. (investor in Mass Mutual
     High Yield Partners LLC).     

    
Mark B. Ackerman                Comptroller of MML Trust
1295 State Street
Springfield, Ma 01111
Age: 31      
    
     Investment Director (since 1996), Associate Director (1993-1996),
     MassMutual; Associate Treasurer (since 1995), MassMutual Participation
     Investors and MassMutual Corporate Investors; Comptroller (since 1997)
     Associate Treasurer (1995-1996), MassMutual Institutional Funds (open-end
     investment company).     
    
The Trustees and officers of MML Trust named above, as a group, own less than
one percent of the shares of any of the Funds.      
    
MML Trust's Declaration of Trust provides that MML Trust will indemnify its
Trustees and officers against liabilities and expenses incurred in connection
with litigation in which they may be involved because of their offices with MML
Trust, except if it is determined in the manner specified in the Declaration of
Trust that they have not acted in good faith in the reasonable belief that their
actions were in the best interests of MML Trust or that such indemnification
would relieve any Trustee or officer of any liability to MML Trust or its
shareholders by reason of willful misfeasance, bad faith, gross negligence or
reckless disregard of his or her duties.     


                                       17
<PAGE>
 
    
The following table discloses actual compensation paid to non-interested
Trustees of MML Trust and members of its Advisory Board during the 1996 fiscal
year. MML Trust paid no compensation to any of its officers. MML Trust has no
pension or retirement plan, but does have a deferred compensation plan. One
Trustee elected in 1994 to receive these benefits over a three year period,
beginning in 1994 when he became 67 years old. All of the non-interested
Trustees and members of the Advisory Board also serve as Trustees of one other
registered investment company managed by MassMutual.      

<TABLE>    
<CAPTION>
===================================================================================================================================
                              Aggregate  Compensation    Deferred Compensation       Estimated Annual     Total Compensation from
Name/Position                 from MML Trust             Plan Benefits Accrued as    Benefits Upon        MML Trust and Fund
                                                         Part of MML Trust           Retirement           Complex
                                                         Expenses
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                          <C>                         <C>                        <C>                     <C>
Abdow,
Ronald  J.                         $16,000                      N/A                        N/A                   $32,000
Trustee                                                                                      
- -----------------------------------------------------------------------------------------------------------------------------------
Boland,                            $16,000                                                   
Mary E.                        ($8,000 Paid by                  N/A                        N/A                   $32,000
Trustee                          MassMutual)
- -----------------------------------------------------------------------------------------------------------------------------------
Marshall, 
William F.
Trustee                            $11,300                      N/A                        N/A                   $23,333
- -----------------------------------------------------------------------------------------------------------------------------------
McCarthy,                                             
Charles J.                         $17,000                      N/A                        N/A                   $34,000
Trustee
- -----------------------------------------------------------------------------------------------------------------------------------
Southworth,
John H.                            $17,000                     $2,310                   $39,246                  $73,246
Trustee
- -----------------------------------------------------------------------------------------------------------------------------------
Ayers,
Richard H.                         $ 4,000                      N/A                        N/A                   $ 6,000
Advisory Board
Member                                               
- -----------------------------------------------------------------------------------------------------------------------------------
Carson,                                               
David E. A.
Advisory Board                     $ 4,000                      N/A                        N/A                   $ 6,000
Member
- -----------------------------------------------------------------------------------------------------------------------------------
Greene,                                               
Richard W.
Advisory Board                     $ 4,000                      N/A                        N/A                   $ 6,000
Member                     
- -----------------------------------------------------------------------------------------------------------------------------------
Hamilton, 
Beverly C. L.                               
Advisory Board                     $ 4,000                      N/A                        N/A                   $ 6,000
Member
===================================================================================================================================
</TABLE>     

                                       18
<PAGE>
 
      V. CONTROL PERSONS AND PRINCIPAL HOLDERS OF SECURITIES
    
MassMutual and MML Bay State were the record owners of all of the outstanding
shares of MML Trust as of April 1, 1997.  However, certain owners of variable
life insurance policies and variable annuity contracts that depend upon the
investment performance of the Funds have the right to instruct MassMutual and
MML Bay State as to how shares of MML Trust deemed attributable to their
contracts shall be voted. MassMutual and MML Bay State generally are required to
vote shares attributable to such contracts but for which no instructions were
received, in proportion to those votes for which instructions were received.
MassMutual's address and MML Bay State's address are 1295 State Street,
Springfield, Massachusetts  01111.      

          VI. INVESTMENT MANAGEMENT AND OTHER SERVICES
    
MassMutual serves as investment manager of each Fund pursuant to a separate
investment management agreement between MassMutual and MML Trust on behalf of
each Fund (the "Management Agreements"). Under the  Management Agreements, which
are substantially identical, MassMutual is authorized to engage in portfolio
transactions on behalf of the Funds, subject to such general or specific
instructions as may be given by the Board of Trustees of MML Trust.      
    
Pursuant to the Management Agreement, MassMutual is paid a quarterly fee at the
annual rate of .50% of the first $100,000,000 of the average daily net asset
value of each Fund, .45% of the next $200,000,000, .40% of the next $200,000,000
and .35% of any excess over $500,000,000.  MassMutual has agreed to bear
expenses of each Fund (other than the management fee, interest, taxes, brokerage
commissions and extraordinary expenses) in excess of .11% of average daily net
asset value through April 30, 1998. The net asset values of the Funds at
December 31, 1996 and the investment management fees each paid during the past
three years were:      

MML Equity Fund
    
  Net Assets (December 31, 1996):  $1,701,998,369      

<TABLE>    
<CAPTION>
  Investment Management Fees:
     <S>          <C>
 
     1994         $3,191,449
     1995         $4,178,204                                   
     1996         $5,787,673                                    
</TABLE>      

MML Money Market Fund
     
  Net Assets (December 31, 1996):  $145,231,042      

<TABLE>     
<CAPTION> 
 
  Investment Management Fees:
     <S>          <C> 
     1994         $412,832
     1995         $501,924
     1996         $612,942
</TABLE>     

                                       19
<PAGE>
 
MML Managed Bond Fund
    
  Net Assets (December 31, 1996):  $181,572,285      

<TABLE>    
<CAPTION>
 
  Investment Management Fees:
     <S>          <C>
     1994         $620,816
     1995         $681,807
     1996         $820,434
</TABLE>      
 
MML Blend Fund
     
  Net Assets (December 31, 1996):  $2,093,990,240      
 
<TABLE>     
<CAPTION> 

  Investment Management Fees:
     <S>          <C> 
     1994         $5,476,633
     1995         $6,344,373
     1996         $7,525,674
</TABLE>     
    
The Management Agreement with each Fund may be terminated by the Board of
Trustees of MML Trust, or by vote of a majority of the outstanding shares of
such Fund, or by MassMutual. Such termination requires 60 days' written notice
to be given and may be effected without the payment of any penalty. In addition,
each such Management Agreement automatically terminates:  (1)  unless its
continuance is specifically approved at least annually by the affirmative vote
of a majority of the Board of Trustees of MML Trust, which affirmative vote
shall include a majority of the members of the Board who are not interested
persons (as defined in the 1940 Act) of MassMutual or of MML Trust, or (2) upon
its assignment. Each Management Agreement also provides that its continuance
will be submitted to the shareholders of the Fund in the event the use of the
initial "MML" is withdrawn from the Fund by MassMutual.      
    
Effective January 1, 1993, MassMutual entered into two investment sub-advisory
agreements (the "Sub-Advisory Agreements") with Concert Capital Management, Inc.
("Concert") whereby Concert agreed to assume MassMutual's duties to manage the
investment of the assets of MML Equity and the Equity Sector of the MML Blend.
From 1993 through 1996, Concert served as investment sub-adviser to MML Equity
and the Equity Sector of MML Blend. On January 1, 1996, the employees of Concert
became co-employees of Babson. At the time, both Concert and Babson were wholly-
owned subsidiaries of DLB Acquisition, a controlled subsidiary of MassMutual.
Concert merged with and into Babson effective December 31, 1996. Thus, effective
January 1, 1997, Babson serves as the investment sub-adviser to MML Equity and
the Equity Sector of MML Blend pursuant to the Sub-Advisory Agreements.
MassMutual is ultimately responsible for providing investment advice to these
Funds and will continue to provide administrative and non-investment advisory
services to the Funds.      
    
MassMutual pays Babson a quarterly fee equal to an annual rate of .13% of the
average daily net asset value of  MML Equity as of the close of each business
day for the investment advisory services Babson provides with respect to MML
Equity. MassMutual pays Babson a quarterly fee equal to an annual rate of .13%
of the average daily net asset value of the Equity Sector of MML Blend as of the
close of each business day for the investment advisory services Babson provides
with respect to the Equity Sector of MML Blend. Additionally, Babson agreed to
assume the expenses associated with fund accounting for MML Equity and the
Equity Sector of MML Blend, however, Babson has no responsibility for providing
such fund accounting services.      

                                       20
<PAGE>
 
The Sub-Advisory Agreements will terminate automatically upon their assignment
or upon the termination of the respective Management Agreement or by MassMutual
upon sixty days' written notice or by liquidation of either MML Equity or the
Equity Sector of MML Blend. Citibank, N.A., 111 Wall Street, New York, New York
10005, acts as custodian of the cash and securities of each Fund. As such, it
holds in custody each Fund's portfolio securities and receives and delivers them
upon purchases and sales.

                           VII. BROKERAGE ALLOCATION
    
Each Fund's Management Agreement with MassMutual provides that the Fund may pay
brokerage commissions which are higher than other brokers would charge if paid
to a broker which provides brokerage and research services to MassMutual and
that MassMutual will follow such practices in placing portfolio transactions for
the Fund as may from time to time be set forth in its Prospectus or specified by
the Board of Trustees of MML Trust. Consistent with this agreement, the present
policy of the Funds and the Advisers is that the Advisers, in placing brokerage
transactions for the Funds, is to seek best execution by responsible brokerage
firms at reasonably competitive commission rates. By virtue of the Sub-Advisory
Agreements, Babson is subject to the same rights, obligations and procedures
that apply to MassMutual pursuant to its Management Agreements with MML Equity
and MML Blend. The Advisers evaluate the overall reasonableness of brokerage
commissions they negotiate with their brokers through their familiarity with
commissions charged on comparable transactions, as well as by comparing
commissions paid by the Funds to reported commissions paid by others. The
Advisers review commission rates, research, execution and settlement services
performed, making internal and external comparisons.     
    
With respect to investments by MML Managed Bond and by MML Blend in its Bond
Sector, it is anticipated that most purchases and sales by such Funds will be
with underwriters or with major dealers in debt instruments acting as
principals. With respect to investment by MML Money Market and by MML Blend in
its Money Market Sector, it is anticipated that most purchases and sales by such
Funds will be with the issuers or with major dealers in money market instruments
acting as principals. MML Managed Bond, MML Money Market and MML Blend in its
Bond and Money Market Sectors usually do not pay brokerage commissions, although
they will incur other transaction costs. In connection with fixed-income
purchases or sales, it is MassMutual's current policy not to enter into soft
dollar arrangements with brokers.  However, MassMutual reserves the ability to
enter into such arrangements if it were to determine that to do so would be
appropriate. In such a case, MassMutual would seek best execution by responsible
brokerage firms at competitive commission rates. To the extent consistent with
this policy, brokerage transactions could be placed with firms which provide
brokerage and research services to MassMutual and such transactions could be
paid for at higher rates than other firms would charge. In placing principal
transactions, MassMutual seeks best price and execution and generally utilizes
principal market makers, but when this primary consideration has been met, such
transactions could be placed with brokers who have provided brokerage and
research services. MassMutual believes that placing brokerage business with
brokers who provide brokerage and research services can be appropriate in
certain circumstances in light of the value of brokerage and research services
in providing investment management to its advisory clients.      
    
With respect to MML Equity and the Equity Sector of MML Blend, Babson seeks best
execution by responsible brokerage firms at competitive commission rates. To the
extent consistent with this policy, brokerage transactions may be placed with
firms which provide brokerage and research services to Babson and may be paid
for at higher rates than other firms would charge. In placing principal
transactions, Babson seeks best price and execution and generally utilizes
principal market makers, but when this primary consideration has been met, such
transactions may be placed with brokers who have       

                                       21
<PAGE>
 
    
provided brokerage and research services. Babson believes that placing brokerage
business with brokers who provide brokerage and research services is appropriate
in light of the value of brokerage and research services in providing investment
management to its advisory clients. Brokerage and research services received
include: advice as to the value of portfolio securities; the advisability of
investing in, purchasing or selling securities; furnishing analyses and reports
concerning issues, industries, securities, economic factors and trends,
portfolio strategy and performance of accounts; and effecting securities
transactions and performing functions incidental thereto (such as clearance and
settlement). These brokerage and research services will be utilized generally in
providing investment advice and management to accounts over which the Advisers
exercise investment discretion, and not all of such services necessarily will be
utilized in providing investment advice and management to the Funds. The
Advisers believe that brokerage and research services are very important in
providing investment advice and management to the Funds, but that they cannot be
given a dollar value. The receipt of brokerage and research services may reduce
the expenses of the Advisers.     
    
At the beginning of each year, Babson estimates the total amount of commissions
expected to be generated by all of its advisory clients, based on commission
rates, past portfolio turnover rates, assets under management, and cash flow
allocated for common stocks. A majority of the total estimated commissions is
then allocated among those firms providing services of a research or brokerage
nature, with those firms providing relatively more valuable services being
allocated larger shares than those providing less valuable services. A portion
of the total estimated commissions is then allocated for brokers providing
research on specific securities during the year (so called "idea firms"), with
the remaining total estimated commissions allocated for execution purposes only.
These allocations then serve as Babson's full-year targets as long as each
particular trade falls within Babson's standards for the best execution,
including price and commission rate. During the year, Babson will determine
whether the yearly allocations are still appropriate, and adjustments are made
based on any shifts in relative importance of the services provided, or any
change in the total amount of commissions expected to be generated.     
    
Employees of MassMutual are primarily responsible for the portfolio decisions of
MML Money Market, MML Managed Bond, and the Money Market Sector and the Bond
Sector of MML Blend. Employees of Babson are primarily responsible for the
portfolio decisions of MML Equity and the Equity Sector of MML Blend. Such
employees are also responsible for placing their portfolio transactions and,
where applicable, negotiating the rate of brokerage commission paid. The cost of
securities purchased from underwriters includes an underwriting commission or
concession and the prices at which securities are purchased from and sold to
dealers include a dealer's mark-up or mark-down. During 1996, no recapture for
the benefit of MML Trust of any brokerage commissions or similar fees paid by
MML Trust on portfolio transactions has been effected.     
    
Brokerage commissions paid by the Funds for the fiscal years ended December 31,
1996, December 31, 1995 and December 31, 1994, respectively were as follows: MML
Equity $794,996, $390,475, and $374,807; and MML Blend $535,301, $365,905 and
$484,130. MML Money Market and MML Managed Bond did not incur any brokerage
commissions during these periods. In 1996, $584,697,581 of MML Trust's
securities transactions involving $908,224 in brokerage commissions were placed
with brokers who furnished research services.     
    
Richard G. Dooley, Vice Chairman of MML Trust's Board of Trustees, is a director
of Jefferies Group Inc., the parent of Jefferies & Co., a registered broker-
dealer. MML Trust paid aggregate brokerage commissions to Jefferies & Co. of
$2,845 in 1994, $0.00 in 1995 and $4,536 in 1996.     

                                       22
<PAGE>
 
                             VIII. CAPITAL SHARES
    
Under Massachusetts law, shareholders could, under certain circumstances, be
held personally liable for obligations of MML Trust. However, MML Trust's
Declaration of Trust disclaims liability of the shareholders, Trustees, or
officers of MML Trust for acts or obligations of MML Trust, which are binding
only on the assets and property of MML Trust, and requires that notice of such
disclaimer be given in each agreement, obligation, or instrument entered into or
executed by MML Trust or the Trustees. The Declaration of Trust provides for
indemnification out of MML Trust property for all loss and expense of any
shareholder held personally liable for the obligations of MML Trust. Thus, the
risk of a shareholder incurring financial loss on account of shareholder
liability is limited to circumstances in which MML Trust itself would be unable
to meet its obligations. Management believes that in view of the above the risk
of personal liability to shareholders is remote.     

       IX. PURCHASE, REDEMPTION AND PRICING OF SECURITIES BEING OFFERED
    
MML Trust is a no-load mutual fund. Fund shares are sold at their net asset
value as next computed after receipt of the purchase order, without the addition
of any selling commission or "sales load." Each Fund redeems its shares at their
net asset value as next computed after receipt of the request for redemption.
The redemption price may be paid in cash or wholly or partly in kind if MML
Trust's Board of Trustees determine that such payment is advisable in the
interest of the remaining shareholders. In making such payment wholly or partly
in kind, the Fund will, as far as may be practicable, deliver securities or
property which approximate the diversification of its entire assets at the time.
No fee is charged on redemption. The redemption price may be more or less than
the shareholder's cost. Redemption payments will be paid within seven days after
receipt of the written request therefor by the Fund, except that the right of
redemption may be suspended or payments postponed when permitted by applicable
law and regulations.     
    
The net asset value of each Fund's shares is determined once daily as of the
close of the New York Stock Exchange (currently 4:00 p.m.) on each day on which
the Exchange is open for trading. The New York Stock Exchange is not open for
trading on New Year's Day, Presidents' Day, Good Friday, Memorial Day,
Independence Day, Labor Day, Thanksgiving Day and Christmas Day and on occasion
is closed early or entirely due to weather or other conditions. The net asset
value of each Fund share is the total net asset value of the applicable Fund
divided by the number of its shares outstanding. The total net asset value of
each Fund is determined by computing the value of the total assets of the Fund
and deducting total liabilities, including accrued liabilities. It is the
intention of MML Money Market Fund to maintain a per share net asset value of
$1.00, although this cannot be assured.     
    
Except as to MML Money Market, the manner of determining the value of the total
assets of each Fund is briefly discussed below. Equity securities are valued on
the basis of valuations furnished by a pricing service, authorized by the Board
of Trustees, which provides the last reported sale price for securities listed
on a national securities exchange or on the NASDAQ national market system. If
securities are unlisted or there is no reported sale price, the bid price of the
prior trade date will be used. Long-term bonds are valued on the basis of
valuations furnished by a pricing service, authorized by the Board of Trustees,
which determines valuations taking into account appropriate factors such as
institutional-size trading in similar groups of securities, yield, quality,
coupon rate, maturity, type of issue, trading characteristics and other market
data. Debt obligations with less than one year but more than sixty days to
maturity are valued on the basis of their market value, and debt obligations
having a maturity of sixty days or less are generally valued at amortized cost
when the Board of Trustees of MML Trust believes that amortized cost
approximates market value. If acquired, preferred stocks will be valued on the
basis      

                                       23
<PAGE>
 
    
of their market value if market quotations are readily available. In all other
cases, assets (including restricted securities) are valued at their fair value
as determined in good faith by the Board of Trustees of MML Trust, although the
actual calculations may be made by persons acting pursuant to the direction of
the Board.     

MML Money Market's portfolio instruments are valued on the basis of amortized
cost which involves initially valuing an instrument at its cost and thereafter
making a constant amortization to maturity of any discount or premium,
regardless of the impact of changes in market interest rates on the market value
of the instrument. While this method provides certainty of valuation, it may
result in periods in which the value, as determined by amortized cost, is higher
or lower than the price MML Money Market would receive if it sold the
instrument. During periods of declining interest rates, the daily yield on
shares of MML Money Market computed as described below may tend to be higher
than a like computation made by a fund with identical investments utilizing a
method of valuation based upon market prices and estimates of market prices for
its portfolio instruments. Thus, if the use of amortized cost by MML Money
Market resulted in a lower aggregate portfolio value on a particular day, a
prospective investor in MML Money Market would be able to obtain a somewhat
higher yield than would result from investment in a fund utilizing market
values, and existing investors in MML Money Market would receive less investment
income. The converse would apply in a period of rising interest rates.
    
The valuation of MML Money Market's portfolio instruments based upon their
amortized cost and the concomitant maintenance of MML Money Market Fund's per
share net asset value of $1.00 is permitted in accordance with Rule 2a-7 of the
SEC. MML Money Market must maintain a dollar-weighted average portfolio maturity
of 90 days or less, generally may purchase only instruments having remaining
maturities of thirteen months (397 days) or less, and invest only in United
States dollar-denominated securities determined by the Board of Trustees to be
of high quality with minimal credit risks.     

The Board of Trustees has established procedures designed to stabilize, to the
extent reasonably possible, MML Money Market's price per share as computed for
the purpose of sales and redemptions at $1.00. Such procedures include review of
MML Money Market's portfolio holdings by the Board of Trustees, at such
intervals as they may deem appropriate, to determine the extent of any deviation
in MML Money Market's net asset value from $1.00 per share calculated by using
available market quotations, and whether such deviation may result in material
dilution or is otherwise unfair to investors or existing shareholders. In the
event the Board of Trustees determines that such a deviation exists, it must
take such corrective action as it regards as necessary and appropriate,
including: the sale of portfolio instruments prior to maturity in order to
realize capital gains or losses or to shorten average portfolio maturity;
withholding dividends; redemptions of shares in kind; or establishing a net
asset value per share by using available market quotations, in which case the
net asset value could possibly be greater or less than $1.00 per share.

Since the net income of MML Money Market is declared as a dividend each time it
is determined, the net asset value per share of MML Money Market remains at
$1.00 per share immediately after each determination and dividend declaration.
Any increase in the value of a shareholder's investment in MML Money Market
representing the reinvestment of dividend income is reflected by an increase in
the number of shares of MML Money Market Fund in the shareholder's account,
which increase is recorded promptly after the end of each calendar month.

Futures contracts are valued based on the market price for the futures contract,
unless such price does not reflect the fair value of the contract, in which case
it will be valued by or under the direction of the Board of Trustees of MML
Trust. When MML Managed Bond or MML Blend enters into a forward commitment to
purchase a security it will record the security as an asset which will be
marked-to-market 

                                       24
<PAGE>
 
daily to reflect the value of the security determined in the manner set forth
above. The obligation to pay the purchase price of the security will be a
liability which remains fixed in amount.

             

                                 X. TAX STATUS

The Treasury Department has issued Regulations under Internal Revenue Code
Section 817(h), that pertain to diversification requirements for variable
annuity and life insurance contracts. A variable contract based upon a separate
account will not receive favorable tax treatment as an annuity or life insurance
contract unless the separate account and underlying regulated investment company
investments are adequately diversified. In determining whether a separate
account is adequately diversified, in certain circumstances the separate account
can look through to the assets of the regulated investment company in which it
has invested.

The Regulations require each of the four Fund's assets to be diversified so that
no single investment represents more than 55% of the value of the Fund's total
assets, no two investments represent more than 70% of the Fund's total assets,
no three investments represent more than 80% of the Fund's total assets and no
four investments represent more than 90% of the Fund's total assets. A "safe
harbor" is available to a separate account if it meets the diversification tests
applicable to registered investment companies and not more than 55% of its
assets constitute cash, cash items, government securities and securities of
other registered investment companies.
    
The applicable Regulations treat all securities of the same issuer as a single
investment. In the case of "government securities", each government agency or
instrumentality shall be treated as a separate issuer for the purpose of the
diversification test (although not for the purpose of the "safe harbor" test
described above). MML Trust intends to comply with these diversification
requirements. It is the policy of each Fund to comply, and in 1996 each Fund did
comply, with the provisions of the Internal Revenue Code applicable to regulated
investment companies. As a result, none of the Funds will be subject to federal
income tax on any distributed net income or capital gains.     

The Funds intend to declare capital gain and ordinary income dividends by the
end of each calendar year and to distribute such dividends no later than January
31 of the following year to the extent necessary to avoid the 4% excise tax on
undistributed regulated investment company income enacted by the Tax Reform Act
of 1986. The 4% excise applies to the excess of the required distribution for
the calendar year over the amount treated as distributed for that year. The
required distribution equals 98% of the Fund's ordinary income for the calendar
year plus 98% of its capital gain net income for the one year period ending
October 31 (or December 31, if the Fund so elects) and any shortfall of income
or gains from the prior year not previously so distributed.

                  XI. CERTAIN TAX AND ACCOUNTING INFORMATION

As previously indicated, it is the policy of each of the Funds to meet the
requirements of the Internal Revenue Code to qualify as a regulated investment
company under the federal tax law. One of these requirements is that less than
30% of its gross income can be derived from gains from the sale or other
disposition of certain assets (including securities) held for or considered
under Internal Revenue Code rules to have been held for less than three months.
Accordingly, the Funds will be restricted in selling newly acquired positions,
engaging in certain option writing activities and certain hedging activities.

When a Fund writes a call option, an amount equal to the premium received by it
is included in its balance sheet as an asset and as an equivalent liability. The
amount of the liability is subsequently marked-to-market to reflect the current
market value of the option written. The current market value of a written option
is the last sale price on the principal exchange on which such option is traded
or, in the

                                       25
<PAGE>
 
absence of a sale, the mean between the last bid and offering prices. If an
option which a Fund has written on an equity security expires on its stipulated
expiration date, or if the Fund enters into a closing purchase transaction, it
realizes a gain (or loss if the cost of a closing purchase transaction exceeds
the premium received when the option was sold) without regard to any unrealized
gain or loss on the underlying security, and the liability related to such
option is extinguished.

Special rules (including mark-to-market, straddle and wash sale rules) exist for
determining the timing of recognition of income or loss, the character of such
income or loss, and the holding periods of certain of the Fund's assets in the
case of certain transactions involving futures contracts, forward contracts and
options. MML Trust will endeavor to make any available elections pertaining to
such transactions in a manner believed to be in the best interest of MML Trust.

                          XII. INVESTMENT PERFORMANCE

MML Money Market may advertise investment performance figures, including its
yield and its effective yield. MML Money Market's yield will be calculated by
computing the net change, exclusive of capital changes, in the value of a
hypothetical pre-existing account having a balance of one share at the beginning
of a stated seven-day period and dividing the difference by the value of the
account at the beginning of the base period to obtain the base period return,
and then multiplying the base period return by (365/7). The Fund's effective
yield will be calculated by computing the net change, exclusive of capital
changes, in the value of a hypothetical pre-existing account having a balance of
one share at the beginning of a stated seven-day period and dividing the
difference by the value of the account at the beginning of the base period to
obtain the base period return, and then compounding the base period return by
adding 1, raising the sum to a power equal to 365 divided by 7 and subtracting 1
from the result.

MML Equity, MML Managed Bond and MML Blend may advertise investment performance
figures, including yield. Each Fund's yield will be based upon a stated 30-day
period and will be computed by dividing the net investment income per share
earned during the period by the maximum offering price per share on the last day
of the period, according to the following formula:

                       YIELD = 2[((a-b)/cd + 1)/6/ - 1]
 
Where: a = dividends and interest earned during the period.
       b = expenses accrued for the period (net of reimbursements, if any).
       c = the average daily number of shares outstanding during the period that
           were entitled to receive dividends.
       d = the maximum offering price (which is the net asset value) per share
           on the last day of the period.

Each of the Funds may advertise its total return and its holding period return.
Total return quotations will be based upon a stated period and will be computed
by finding the average annual compounded rate of return over the stated period
that would equate an initial amount invested to the ending redeemable value of
the investment (assuming reinvestment of all distributions), according to the
following formula:

P(1 + T)/n/ = ERV   Where:  P = a hypothetical initial payment of $1,000.
                            T = average annual total return.
                            n = number of years.
                            ERV = ending redeemable value at the end of the
                            stated period of a hypothetical $1,000 payment made
                            at the beginning of the stated period.

                                       26
<PAGE>
 
Holding period return will be based upon a stated period and will be computed by
dividing the ending redeemable value of a hypothetical initial payment by the
value of the initial investment (assuming reinvestment of all distributions).
Each investment performance figure will be carried to the nearest hundredth of
one percent. These investment performance figures do not reflect charges imposed
by the separate investment accounts invested in the Funds which, if included,
would decrease the performance figures.
    
MML Equity Fund's yield, based on the 30-day period ended December 31, 1996 was
2.52%. The Fund's total returns for the 1, 5, 10 and 15 year periods each ended
December 31, 1996 were 20.25%, 14.71%, 13.78% and 16.01%, respectively. The
Fund's holding period returns for the 1, 5, 10 and 15 year periods each ended
December 31, 1996 were 20.25%, 98.62%, 263.69% and 827.82%, respectively.     
    
MML Money Market Fund's yield for the seven-day period ended December 31, 1996
was 4.95% and its effective yield for such period was 5.08%. The Fund's total
returns for the 1, 5, and 10 year periods each ended December 31, 1996 were
5.01%, 4.13%, and 5.76% respectively. The Fund's total return for the period
beginning December 16, 1981 and ending December 31, 1996 was 6.84%. The Fund's
holding period returns for the 1, 5 and 10 year periods each ended December 31,
1996 were 5.01%, 22.40%, and 75.13% respectively. The Fund's holding period
return for the period beginning December 16, 1981 and ending December 31, 1996
was 170.43%.     
    
MML Managed Bond Fund's yield, based on the 30-day period ended December 31,
1996, was 7.23%. The Fund's total returns for the 1, 5, and 10 year periods each
ended December 31, 1996 were 3.25%, 7.27%, and 8.34% respectively. The Fund's
total return for the period beginning December 16, 1981 and ending December 31,
1996 was 10.40%. The Fund's holding period returns for the 1, 5, and 10 year
periods each ended December 31, 1996 were 3.25%, 42.04%, and 122.70%
respectively. The Fund's holding period return for the period beginning December
16, 1981 and ending December 31, 1996 was 342.98%.     
    
MML Blend Fund's yield, based on the 30-day period ended December 31, 1996 was
3.28%. The Fund's total return for the 1, 5 and 10 year periods ended December
31, 1996 were 13.95%, 11.55%, and 11.89%, respectively. The Fund's total return
for the period beginning February 3, 1984 and ending December 31, 1996 was
13.13%. The Fund's holding period return for the 1, 5 and 10 year periods ended
December 31, 1996 were 13.95%, 72.69% and 207.54%, respectively. The Fund's
holding period return for the period beginning February 3, 1984 and ending
December 31, 1996 was 391.79%.     

                                 XIII. EXPERTS

The financial statements of each of the Funds which comprise the MML Series
Investment Fund included in this Statement of Additional Information have been
included herein in reliance on the report of Coopers & Lybrand L.L.P.,
independent accountants, given on the authority of that firm as experts in
accounting and auditing.

The name MML Series Investment Fund is the designation of Trustees under a
Declaration of Trust dated December 19, 1984, as amended from time to time. The
obligations of such Trust are not personally binding upon, nor shall resort be
had to the property of, any of the Trustees, shareholders, officers, employees
or agents of such Trust, but MML Trust's property only shall be bound.

                                       27
<PAGE>
 
                                       
                                   APPENDIX     
                                  
                              SECURITIES RATINGS     
    
This is a description of Standard & Poor's Ratings Group ("S&P") and Moody's
Investors Service, Inc. ("Moody's") commercial paper and bond ratings:     

I. Commercial Paper Ratings:

S&P Commercial Paper Ratings -- are graded into four categories, ranging from
'A' for the highest quality obligations to 'D' for the lowest. 'A' Issues
assigned the highest rating are regarded as having the greatest capacity for
timely payment. Issues in this category are delineated with the numbers 1, 2,
and 3 to indicate the relative degree of safety. The A-1 and A-2 categories are
described as follows:

  "A-1":  This designation indicates that the degree of safety regarding timely
  payment is strong. Those issues determined to possess extremely strong safety
  characteristics are denoted with a plus (+) sign designation.

  "A-2":  Capacity for timely payment on issues with this designation is
  satisfactory. However, the relative degree of safety is not as high as for
  issues designated 'A-1'.

Moody's Commercial Paper Ratings -- employs three designations, all judged to be
investment grade, to indicate the relative repayment ability of rated issuers.
The two highest designations are as follows:

  Prime-1: Issuers rated Prime-1 (or related supporting institutions) have a
  superior ability for repayment of senior short-term debt obligations. Prime-1
  repayment ability will often be evidenced by many of the following
  characteristics:

     . Leading market positions in well-established industries.
     . High rates of return on funds employed.
     . Conservative capitalization structure with moderate reliance on debt and
       ample asset  protection.
     . Broad margins in earnings coverage of fixed financial charges and high
       internal cash generation.
     . Well established access to a range of financial markets and assured
       sources of alternate liquidity.

  Prime-2:  Issuers rated Prime-2 (or related supporting institutions) have a
  strong ability for repayment of senior short-term promissory obligations. This
  will normally be evidenced by many of the characteristics cited above, but to
  a lesser degree. Earnings trends and coverage ratios, while sound, may be more
  subject to variation. Capitalization characteristics, while still appropriate,
  may be more affected by external conditions. Ample alternate liquidity is
  maintained.

II.  Bond Ratings

S&P describes its four highest ratings for corporate debt as follows:

 A:AAA  --Debt rated "AAA" has the highest rating assigned by S&P. Capacity to
          pay interest and repay principal is extremely strong.

    AA  --Debt rated "AA" has a very strong capacity to pay interest and repay
          principal and differs from the higher rated issues only in small
          degree.

                                      A-1
<PAGE>
 
     A  --Debt rated "A" has a strong capacity to pay interest and repay
          principal although it is somewhat more susceptible to the adverse
          effects of changes in circumstances and economic conditions than debt
          in higher rated categories.

 B:BBB  --Debt rated "BBB" is regarded as having an adequate capacity to pay
          interest and repay principal. Whereas it normally exhibits adequate
          protection parameters, adverse economic conditions or changing
          circumstances are more likely to lead to a weakened capacity to pay
          interest and repay principal for debt in this category than in higher
          rated categories.

The ratings from "AA" to "CCC" may be modified by the addition of a plus or
minus sign to show relative standing within the major rating categories.

Moody's describes its four highest corporate bond ratings as follows:

   Aaa  --Bonds which are rated Aaa are judged to be of the best quality. They
          carry the smallest degree of investment risk and are generally
          referred to as "gilt edged." Interest payments are protected by a
          large or by an exceptionally stable margin and principal is secure.
          While the various protective elements are likely to change, such
          changes as can be visualized are most unlikely to impair the
          fundamentally strong position of such issues.

    Aa  --Bonds which are rated Aa are judged to be of high quality by all
          standards. Together with the Aaa group they comprise what are
          generally known as high grade bonds. They are rated lower than the
          best bonds because margins of protection may not be as large as in Aaa
          securities or fluctuation of protective elements may be of greater
          amplitude or there may be other elements present which make the long
          term risks appear somewhat larger than the Aaa securities.

     A  --Bonds which are rated A possess many favorable investment attributes
          and are to be considered as upper medium grade obligations. Factors
          giving security to principal and interest are considered adequate but
          elements may be present which suggest a susceptibility to impairment
          some time in the future.

   Baa  --Bonds which are rated Baa are considered as medium grade obligations,
          (i.e., they are neither highly protected nor poorly secured). Interest
          payments and principal security appear adequate for the present, but
          certain protective elements may be lacking or may be
          characteristically unreliable over any great length of time. Such
          bonds lack outstanding investment characteristics and in fact have
          speculative characteristics as well.

Moody's applies numerical modifiers, 1, 2 and 3 in each generic rating
classification from Aa through B in its corporate bond rating system. The
modifier 1 indicates that the security ranks in the higher end of its generic
rating category; the modifier 2 indicates a mid-range ranking; and the modifier
3 indicates that the issue ranks in the lower end of its generic rating
category.

S&P describes its below investment grade ratings for corporate debt as follows:

          BB, B, CCC, CC, C -- Debt rated "BB", "B", "CCC", "CC" and "C" is
          regarded, on balance, as predominantly speculative with respect to
          capacity to pay interest and repay principal in accordance with the
          terms of the obligation, "BB" indicates the lowest degree of
          speculation and "C" the highest degree of speculation. While such debt
          will likely have some

                                      A-2
<PAGE>
 
          quality and protective characteristics, these are outweighed by large
          uncertainties or major risk exposures to adverse conditions.

    BB  --Debt rated "BB" has less near-term vulnerability to default than other
          speculative issues. However, it faces major ongoing uncertainties or
          exposure to adverse business, financial, or economic conditions which
          could lead to inadequate capacity to meet timely interest and
          principal payments. The "BB" rating category is also used for debt
          subordinated to senior debt that is assigned an actual or implied 
          "BBB-" rating.

     B  --Debt rated "B" has a greater vulnerability to default but currently
          has the capacity to meet interest payments and principal repayments.
          Adverse business, financial, or economic conditions will likely impair
          capacity or willingness to pay interest and repay principal. The "B"
          rating category is also used for debt subordinated to senior debt that
          is assigned an actual or implied "BB" or "BB-" rating.

   CCC  --Debt rated "CCC" has a currently identifiable vulnerability to
          default, and is dependent upon favorable business, financial, and
          economic conditions to meet timely payment of interest and repayment
          of principal. In the event of adverse business, financial, or economic
          conditions, it is not likely to have the capacity to pay interest and
          repay principal. The "CCC" rating category is also used for debt
          subordinated to senior debt that is assigned an actual or implied "B"
          or "B-" rating.

    CC  --The rating "CC" is typically applied to debt subordinated to senior
          debt that is assigned an actual or implied "CCC" rating.

     C  --The rating "C" is typically applied to debt subordinated to senior
          debt which is assigned an actual or implied "CCC-" debt rating. The
          "C" rating may be used to cover a situation where a bankruptcy
          petition has been filed, but debt service payments are continued.

    C1  --The rating "C1" is reserved for income bonds on which no interest is
          being paid.

     D  --Debt rated "D" is in payment default. The "D" rating category is used
          when interest payments or principal payments are not made on the date
          due even if the applicable grace period has not expired, unless S&P
          believes that such payments will be made during such grace period. The
          "D" rating also will be used upon the filing of a bankruptcy petition
          if debt service payments are jeopardized.

Moody's describes its below investment grade corporate bond ratings as follows:

    Ba  --Bonds which are rated Ba are judged to have speculative elements;
          their future cannot be considered as well assured. Often the
          protection of interest and principal payments may be very moderate and
          thereby not well safeguarded during other good and bad times over the
          future. Uncertainty of position characterizes bonds in this class.

     B  --Bonds which are rated B generally lack characteristics of the
          desirable investment. Assurance of interest and principal payments or
          of maintenance of other terms of the contract over any long period of
          time may be small.

   Caa  --Bonds which are rated Caa are of poor standing. Such issues may be in
          default or there may be present elements of danger with respect to
          principal or interest.

                                      A-3
<PAGE>
 
 
    Ca  --Bonds which are rated Ca represent obligations which are speculative
          in a high degree. Such issues are often in default or have other
          marked shortcomings.

     C  --Bonds which are rated C are the lowest rated class of bonds and issues
          so rated can be regarded as having extremely poor prospects of ever
          attaining any real investment standing.


                                      A-4

<PAGE>
 
PART C: OTHER INFORMATION

Item 24: Financial Statements and Exhibits

 (a) Financial Statements:

     Financial Statement Information Included in Part A

        Supplementary Per Share Information for MML Equity Fund, MML Money
        Market Fund, MML Managed Bond Fund and MML Blend Fund.

     Financial Statements Included in Part B
 
        Report of Independent Accountants
    
        Statement of Assets and Liabilities as of December 31, 1996     
    
        Statement of Operations for the year ended December 31, 1996     
    
        Statement of Changes in Net Assets for the years
        ended December 31, 1996 and 1995     

        Financial Highlights
    
        Schedule of Investments as of December 31, 1996     

        Notes to Financial Statements

 (b) Exhibits:

 Exhibit 1:    Registrant's Agreement and Declaration of Trust, as restated 
               May 14, 1993, incorporated by reference to Exhibit 1 of Post-
               Effective Amendment No. 32 to Registrant's Registration Statement
               on Form N-1A.
 
 Exhibit 2:    Registrant's By-Laws, as amended and restated August 6, 1993,
               incorporated by reference to Exhibit 2 of Post-Effective
               Amendment No. 32 to Registrant's Registration Statement on Form 
               N-1A.
 
 Exhibit 3:    None.
 
 Exhibit 4:    None.
 
 Exhibit 5(a)  Copy of executed Investment Management Agreements between each of
               Registrant's four series and Massachusetts Mutual Life Insurance
               Company ("MassMutual"), as approved by shareholders of the Trust
               on April 16, 1993, incorporated by reference to Exhibit 5(a) of
               Post-Effective Amendment No. 32 to Registrant's Registration
               Statement on Form N-1A.
 
 Exhibit 5(b)  Copy of executed Investment Sub-Advisory Agreement between
               MassMutual and Concert Capital Management Inc. ("Concert"), with
               respect to the provision of investment advice as to MML Equity
               and the Equity Sector of MML Blend, as 

                                       1
<PAGE>
 
                approved by shareholders of the Trust on April 16, 1993,
                incorporated by reference to Exhibit 5(b) of Post-Effective
                Amendment No. 32 to Registrant's Registration Statement on Form
                N-1A.
 
 Exhibit 6:     None.
 
 Exhibit 7:     None.
 
 Exhibit 8:     Conformed copies of Custodian Agreements between each of the
                Funds and Citibank, N.A. incorporated by reference to Exhibit 8
                of the Post-Effective Amendment No. 33 to Registrant's
                Registration Statement on Form N-1A.

 Exhibit 9:     None.
     
 Exhibit 10:    Opinion of counsel as to the legality of shares being
                registered, incorporated by reference to Registrant's Rule 24f-2
                Notice filed on February 27, 1997.    
     
 Exhibit 11(a): Consent of Independent Accountants.     
     
 Exhibit 11(b): Power of Attorney     
 
 Exhibit 12:    None.
 
 Exhibit 13:    None.
 
 Exhibit 14:    None.
 
 Exhibit 15:    None.
 
 Exhibit 16:    Schedule of computations of Performance Quotations, incorporated
                by reference to Exhibit 16 of Post Effective Amendment No. 27 to
                Registrant's Registration Statement on Form N-1A.
 
 Exhibit 17:    Financial Data Schedule
 
 Exhibit 18:    None

Item 25: Person Controlled by or Under Common Control with Registrant
         ------------------------------------------------------------

At the date of this Post-Effective Amendment, Registrant did not, directly or
indirectly, control any person. Registrant was organized by MassMutual primarily
for the purpose of providing a vehicle for the investment of assets of various
separate investment accounts established by MassMutual and life insurance
company subsidiaries of MassMutual. The assets in such separate accounts are,
under state law, assets of the life insurance companies which have established
such accounts. Thus, at any time MassMutual and its life insurance company
subsidiaries will own such outstanding shares of Registrant's series as are
purchased with separate account assets; however, where required to do so,
MassMutual and its subsidiaries will vote such shares only in accordance with
instructions received from owners of the contracts pursuant to which sums are
placed in such separate accounts. The following entities are, or may be deemed
to be, controlled by MassMutual through the direct or indirect ownership of such
entities' stock.

                                       2
<PAGE>
 
    
1.   MML Series Investment Fund, a registered open-end investment company
     organized as a Massachusetts business trust, all of the shares of which are
     owned by separate accounts of MassMutual and companies controlled by
     MassMutual.     

2.   MassMutual Institutional Funds, a registered open-end investment company
     organized as a Massachusetts business trust, all of the shares of which are
     owned by MassMutual.
    
3.   MassMutual Holding Company, a Delaware corporation, all the stock of which
     is owned by MassMutual.     

4.   MML Bay State Life Insurance Company, a Missouri corporation, all the stock
     of which is owned by MassMutual.
    
5.   MassMutual of Ireland, Ltd., incorporated in the Republic of Ireland, that
     formerly provided claims service to group life and health contract holders
     for MassMutual, all of the stock of which is owned by MassMutual.     

6.   CM Assurance Company, a Connecticut life, accident, disability and health
     insurer, all the stock of which is owned by MassMutual.

7.   CM Benefit Insurance Company, a Connecticut life, accident, disability and
     health insurer, all the stock of which is owned by MassMutual.

8.   C.M. Life Insurance Company, a Connecticut life, accident, disability and
     health insurer, all the stock of which is owned by MassMutual.
    
9.   MML Distributors, LLC, formerly known as Connecticut Mutual Financial
     Services, LLC, a registered broker-dealer incorporated as a limited
     liability company in Connecticut. MassMutual has a 99% ownership interest
     and G.R. Phelps & Co. has a 1% ownership interest.     
    
10.  Panorama Series Fund, Inc., a registered open-end investment company
     organized as a Maryland corporation. Shares of the fund are sold only to
     MassMutual and its affiliates.     
    
11.  MassMutual Holding Trust I, a Massachusetts business trust, which acts as a
     holding company for certain MassMutual subsidiaries and affiliates, all of
     the stock of which is owned by MassMutual Holding Company.     
    
12.  MassMutual Holding Trust II, a Massachusetts business trust, which acts as
     a holding company for certain MassMutual subsidiaries and affiliates, all
     of the stock of which is owned by MassMutual Holding Company.     
    
13.  MassMutual Holding MSC, Inc., a Massachusetts corporation, which acts as a
     holding company for certain MassMutual subsidiaries and affiliates, all of
     the stock of which is owned by MassMutual Holding Company.     
    
14.  MML Investors Services, Inc., a registered broker-dealer incorporated in
     Massachusetts, all the stock of which is owned by MassMutual Holding
     Company and G. R. Phelps & Co.     
    
15.  G.R. Phelps & Company, Inc., a Connecticut corporation which formerly
     operated as a securities broker-dealer and investment adviser, all the
     stock of which is owned by MassMutual Holding Company.     

                                       3
<PAGE>
 
    
16.  MassMutual International, Inc., a Delaware corporation that acts as a
     holding company of and provides services to international insurance
     companies, all of the stock of which is owned by MassMutual Holding
     Company.     
    
17.  MassLife Seguros de Vida S.A. (Argentina), a life insurance company
     incorporated in Argentina. MassMutual International Inc. owns 99.99% of the
     outstanding capital stock of MassLife Seguros de Vida S.A.     
    
18.  Cornerstone Real Estate Advisers, Inc., a Massachusetts equity real estate
     advisory corporation, all the stock of which is owned by MassMutual Holding
     Trust I.     
    
19.  DLB Acquisition Corporation ("DLB") is a Delaware corporation, which serves
     as a holding company for certain investment advisory subsidiaries of
     MassMutual. MassMutual Holding Trust I owns 83.7% of the outstanding
     capital stock of DLB.     
    
20.  Oppenheimer Acquisition Corporation ("OAC") is a Delaware corporation,
     which serves as a holding company for OppenheimerFunds, Inc. MassMutual
     Holding Trust I owns 86% of the capital stock of OAC.     
    
21.  Antares Leveraged Capital Corp., a Delaware corporation that operates as a
     finance company, all of the stock of which is owned by MassMutual Holding
     Trust I.     
    
22.  Charter Oak Capital Management, Inc., a Delaware corporation that operates
     as an investment manager. MassMutual Holding Trust I owns 80% of the
     capital stock of Charter Oak.     
    
23.  MML Realty Management Corporation, a property manager incorporated in
     Massachusetts, all the stock of which is owned by MassMutual Holding Trust
     II.     
    
24.  Westheimer 335 Suites, Inc., was incorporated in Delaware to serve as a
     general partner of the Westheimer 335 Suites Limited Partnership.
     MassMutual Holding Trust II owns all the stock of Westheimer 335 Suites,
     Inc.     
    
25.  CM Advantage, Inc., a Connecticut corporation that acts as a general
     partner in real estate limited partnerships. MassMutual Holding Trust II
     owns all of the outstanding stock.     
    
26.  CM International, Inc., a Delaware corporation that holds a mortgage pool
     and issues collateralized bond obligations. MassMutual Holding Trust II
     owns all the outstanding stock of CM International, Inc.     
    
27.  CM Property Management, Inc., a Connecticut real estate holding company,
     all the stock of which is owned by MassMutual Holding Trust II.     
    
28.  Urban Properties, Inc., a Delaware real estate holding and development
     company, all the stock of which is owned by MassMutual Holding Trust 
     II.     
    
29.  MMHC Investment, Inc., a Delaware corporation which is a passive investor
     in MassMutual High Yield Partners LLC. MassMutual Holding Trust II owns all
     the outstanding stock of MMHC Investment, Inc.     

                                       4
<PAGE>
 
    
30.  HYP Management, Inc., a Delaware corporation which is the LLC Manager for
     MassMutual High Yield Partners LLC and owns 1.28% of the LLC units of such
     entity. MassMutual Holding Trust II owns all the outstanding stock of HYP
     Management, Inc.

31.  MassMutual Corporate Value Limited, a Cayman Islands corporation that owns
     approximately 90% of MassMutual Corporate Value Partners Limited.
     MassMutual Holding MSC, Inc. owns 46.19% of the outstanding capital stock
     of MassMutual Corporate Value Limited.

32.  MassMutual International (Bermuda) Ltd., a Bermuda life insurance company,
     all of the stock of which is owned by MassMutual International Inc.

33.  MassMutual Internacional (Chile) S.A. a Chilean corporation, which operates
     as a holding company. MassMutual International Inc. owns 99% of the
     outstanding shares and MassMutual Holding Company owns the remaining 1% of
     the shares.

34.  MassMutual International (Luxembourg) S.A. a Luxembourg corporation, which
     operates as an insurance company. MassMutual International Inc. owns 99% of
     the outstanding shares and MassMutual Holding Company owns the remaining 1%
     of the shares.

35.  Mass Seguros de Vida S.A., a life insurance company incorporated in Chile.
     MassMutual International, Inc. owns 33.5% of the outstanding capital stock
     of Mass Seguros de Vida S.A.

36.  MML Insurance Agency, Inc., a licensed insurance broker incorporated in
     Massachusetts, all of the stock of which is owned by MML Investors
     Services, Inc.

37.  MML Securities Corporation, a Massachusetts securities corporation, all of
     the stock of which is owned by MML Investors Services, Inc.

38.  OppenheimerFunds, Inc., a registered investment adviser incorporated in
     Colorado, all of the stock of which is owned by Oppenheimer Acquisition
     Corporation.

39.  David L. Babson and Company, Incorporated, a registered investment adviser
     incorporated in Massachusetts, all of the stock of which is owned by DLB
     Acquisition Corporation.

40.  Cornerstone Office Management, LLC, a Delaware limited liability company
     that is 50% owned by Cornerstone Real Estate Advisers, Inc. and 50% owned
     by MML Realty Management Corporation.

41.  Westheimer 335 Suites Limited Partnership, a Texas limited partnership of
     which Westheimer 335 Suites, Inc. is the general partner.

42.  MassMutual High Yield Partners LLC, a Delaware limited liability company,
     that operates as a high yield bond fund. MassMutual holds 5.28%, MMHC
     Investment Inc. holds 35.99%, and HYP Management, Inc. hold 1.28% for a
     total of 42.55% of the ownership interest in this company.

43.  MassMutual Corporate Value Partners Limited, a Cayman Islands corporation
     that operates as a high yield bond fund. MassMutual Corporate Value Limited
     holds an approximately 90% ownership interest in this company.     

                                       5
<PAGE>
 
    
44.  DISA Insurance Services of America, Inc. (Alabama), a licensed insurance
     broker incorporated in Alabama. MML Insurance Agency, Inc. owns all the
     shares of outstanding stock.

45.  Diversified Insurance Services of America, Inc. (Hawaii), a licensed
     insurance broker incorporated in Hawaii. MML Insurance Agency, Inc. owns
     all the shares of outstanding stock.

46.  MML Insurance Agency of Nevada, Inc., a Nevada corporation that operates as
     an insurance broker, all of the stock of which is owned by MML Insurance
     Agency, Inc.

47.  MML Insurance Agency of Ohio, Inc., a subsidiary of MML Insurance Agency,
     Inc., is incorporated in the state of Ohio and operates as an insurance
     broker. The outstanding capital stock is controlled by MML Insurance
     Agency, Inc. by means of a voting trust.

48.  MML Insurance Agency of Texas, Inc., a subsidiary of MML Insurance Agency,
     Inc., is incorporated in the state of Texas and operates as an insurance
     broker. The outstanding capital stock is controlled by MML Insurance
     Agency, Inc. by means of a voting trust.

49.  MML Insurance Agency of Mississippi, P.C., a Mississippi professional
     corporation that operates as an insurance broker and is controlled MML
     Insurance Agency, Inc.

50.  Origen Inversiones S.A., a Chilean corporation which operates as a holding
     company. MassMutual Internacional (Chile) S.A. holds a 33.5% ownership
     interest in this corporation.

51.  Babson Securities Corporation, a registered broker-dealer incorporated in
     Massachusetts, all of the stock of which is owned by David L. Babson and
     Company, Incorporated.

52.  Potomac Babson Incorporated, a Massachusetts corporation, is a registered
     investment adviser. David L. Babson and Company Incorporated owns 60% of
     the outstanding shares of Potomac Babson Incorporated.

53.  Babson-Stewart-Ivory International, a Massachusetts general partnership,
     which operates as a registered investment adviser. David L. Babson and
     Company Incorporated holds a 50% ownership interest in the partnership.

54.  Oppenheimer Value Stock Fund ("OVSF") is a series of Oppenheimer Integrity
     Funds, a Massachusetts business trust. OVSF is a registered open-end
     investment company of which MassMutual and its affiliates own 29% of the
     outstanding shares of beneficial interest.

55.  Oppenheimer Series Fund Inc., a Maryland corporation and a registered open-
     end investment company of which MassMutual and its affiliates owns at least
     15% of the outstanding shares of beneficial interest of each of four
     series.

56.  Centennial Asset Management Corporation, a Delaware corporation that serves
     as the investment adviser and general distributor of the Centennial Funds.
     OppenheimerFunds, Inc. owns all the stock of Centennial Asset Management
     Corporation.

57.  HarbourView Asset Management Corporation, a registered investment adviser
     incorporated in New York, all the stock of which is owned by
     OppenheimerFunds, Inc.

58.  Oppenheimer Real Asset Management, Inc., a Delaware corporation, all the
     stock of which is owned by OppenheimerFunds, Inc.    

                                       6
<PAGE>
 
59.  OppenheimerFunds Distributor, Inc., a registered broker-dealer incorporated
     in New York, all the stock of which is owned by OppenheimerFunds, Inc.

60.  Oppenheimer Partnership Holdings, Inc., a Delaware holding company, all the
     stock of which is owned by OppenheimerFunds, Inc.

61.  Shareholder Financial Services, Inc., a transfer agent incorporated in
     Colorado, all the stock of which is owned by OppenheimerFunds, Inc.

62.  Shareholder Services, Inc., a transfer agent incorporated in Colorado, all
     the stock of which is owned by OppenheimerFunds, Inc.
    
63.  MultiSource Service, Inc., a Colorado corporation that operates as a
     clearing broker, 80% of the stock of which is owned by OppenheimerFunds,
     Inc.     

64.  Centennial Capital Corporation, a former sponsor of unit investment trust
     incorporated in Delaware, all the stock of which is owned by Centennial
     Asset Management Corporation.
    
65.  Compensa Compania Seguros De Vida, a Chilean insurance company. Origen
     Inversiones S.A. owns 99% of the outstanding shares of this company     
    
66.  Cornerstone Suburban Office Investors, LP, a Delaware limited partnership,
     which operates as a real estate operating company. Cornerstone Office
     Management, LLC holds a 1% general partnership interest in this fund and
     MassMutual holds a 99% limited partnership interest.     
    
67.  505 Waterford Park Limited Partnership, a Delaware limited partnership,
     which holds title to an office building in Minneapolis, Minnesota. MML
     Realty Management Corporation holds a 1% general partnership interest in
     this partnership and MassMutual holds a 99% limited partnership interest.
         
68.  The DLB Fund Group, an open-end management investment company, of which
     MassMutual owns at least 25% of each series.     

MassMutual is the investment adviser the following investment companies, and as
such may be deemed to control them.

1.   MassMutual Corporate Investors, a registered closed-end Massachusetts
     business trust.

2.   MassMutual Participation Investors, a registered closed-end Massachusetts
     business trust.

3.   MML Series Investment Fund, a registered open-end Massachusetts business
     trust, all of the shares are owned by separate accounts of MassMutual and
     companies controlled by MassMutual.

4.   MassMutual Institutional Funds, a registered open-end Massachusetts
     business trust, all of the shares are owned by MassMutual.

5.   MassMutual/Carlson CBO N.V., a Netherlands Antilles corporation that issued
     Collateralized Bond Obligations on or about May 1, 1991, which is owned
     equally by MassMutual interests (MassMutual and MassMutual Holding MSC,
     Inc.) and Carlson Investment Management Co.

                                       7
<PAGE>
 
6.   MassMutual Corporate Value Partners, Limited, an off-shore unregistered
     investment company.
    
7.   MassMutual High Yield Partners LLC, a high yield bond fund organized as
     Delaware limited liability company.     

Item 26: Number of Holders of Securities
- ----------------------------------------
    
As of May 1, 1997, the number of holders of record of each class of securities
of Registrant was as follows:     

     Title of Class    Number of Record Holders
     --------------    ------------------------

     Shares of
     Beneficial                      2
     Interest

Item 27: Indemnification
- ------------------------

Article VIII of Registrant's Agreement and Declaration of Trust provides for the
indemnification of Registrant's Trustees and officers. Registrant undertakes to
apply the indemnification provisions of its Agreement and Declaration of Trust
in a manner consistent with Securities and Exchange Commission Release No. IC-
11330 so long as the interpretation of Section 17(h) and 17(i) of the Investment
Company Act of 1940 set forth in such Release shall remain in effect and be
consistently applied.

Trustees and officers of Registrant are also indemnified by MassMutual pursuant
to its by-laws which apply to subsidiaries, including Registrant. No
indemnification is provided with respect to any liability to any entity which is
registered as an investment company under the Investment Company Act of 1940 or
to the security holders thereof, where the basis for such liability is willful
misfeasance, bad faith, gross negligence or reckless disregard of the duties
involved in the conduct of office.

MassMutual's directors' and officers' liability insurance program, which covers
Registrant's Trustees and officers, consists of two distinct coverages. The
first coverage reimburses MassMutual, subject to specified limitations, for
amounts which MassMutual is legally obligated to pay out under its
indemnification by-law, discussed above. The second coverage directly protects a
Trustee or officer of Registrant against liability shareholder derivative and
similar lawsuits which are indemnifiable under the law. There are, however,
specific acts giving rise to liability which are excluded from this coverage.
For example, no Trustee or officer is insured against personal liability for
libel or slander, acts of deliberate dishonesty, fines or penalties, illegal
personal profit or advantage at the expense of Registrant or its shareholders,
violation of employee benefit plans, regulatory statutes, and similar acts which
would traditionally run contrary to public policy and hence reimbursement by
insurance.
    
MassMutual's present insurance coverage has an overall limit of $60 million
annually ($15 million of which is underwritten by National Union Fire Insurance
Company, $15 million of which is underwritten by Executive Risk Indemnity, Inc.,
$10 million of which is underwritten by Continental Casualty Co., $5 million of
which is underwritten by Federal Insurance Co., and $15 million of which is
underwritten by Sargasso Mutual Insurance Company). There is a deductible of
$200,000 per claim under the corporate coverage. There is no deductible for
individual Trustees or officers.     

Insofar as indemnification for liabilities arising under the Securities Act of
1933 may be permitted to Trustees, officers and controlling persons of
Registrant pursuant to the foregoing provisions, or otherwise, Registrant has
been advised that in the opinion of the Securities and Exchange Commission 

                                       8
<PAGE>
 
such indemnification is against public policy as expressed in the Securities Act
of 1933, and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by Registrant
of expenses incurred or paid by a Trustee, officer or controlling person of
Registrant in the successful defense of any action, suit or proceeding) is
asserted by such Trustee, officer or controlling person in connection with the
securities being registered, Registrant will, unless in the opinion of its
counsel the matter has been settled by controlling precedent, submit to a court
of appropriate jurisdiction the question whether such indemnification by it is
against public policy as expressed in the Securities Act of 1933 and will be
governed by the final adjudication of such issue.

Item 28: Business and Other Connections of the Investment Adviser
- -----------------------------------------------------------------
    
a. The Investment Adviser     

    
MassMutual is the investment adviser for Registrant. MassMutual is a mutual life
insurance company organized as a Massachusetts corporation which was originally
chartered in 1851. As a mutual life insurance company, the Company has no
shareholders. MassMutual's primary business is ordinary life insurance.
MassMutual also provides, directly or through its subsidiaries, a wide range of
annuity and disability products, and pension and pension-related products and
services, as well as investment services to individuals, and corporations and
other institutions, in all 50 states of the United States and the district of
Columbia. MassMutual is also licensed to transact business in Puerto Rico, and
six provinces of Canada, but has no export sales. Effective February 29, 1996,
Connecticut Mutual Life Insurance Company merged into the MassMutual.     
    
MassMutual's principal lines of business are (i) the Individual Line, which
provides life insurance including variable and universal life insurance,
annuities and disability income insurance to individuals and small businesses;
(ii) Pension Management, which provides group pension investment products and
administrative services, primarily to sponsors of tax qualified retirement
plans; (iii) Life and Health Benefits Management, which previously provided
group life and health insurance products and related services to corporations
and other institutions; this line was transferred to a subsidiary in December
1994, and the subsidiary was subsequently sold in March of 1996; and (iv)
MassMutual Investment Management Group, which provides advisory services for
MassMutual's general investment account and separate investment accounts, as
well as for various closed-end and open-end investment companies and external
institutional clients, through its own staff and those of OppenheimerFunds Inc.
and David L. Babson and Company, Inc., in which MassMutual indirectly owns a
controlling interest.     

The directors and executive vice presidents of MassMutual, their positions and
their other business affiliations and business experience for the past two years
are listed below.

Directors

ROGER G. ACKERMAN, Director and Member, Auditing and Human Resources Committees
    
     Chairman and Chief Executive Officer (since 1996), President and Chief
     Operating Officer (1990-1996), Corning Incorporated (manufacturer of
     specialty materials, communication equipment and consumer products), One
     Riverfront Plaza, Corning, New York; Director (since 1993), Dow Corning
     Corporation (producer of silicone products), 2200 West Salzburg Road,
     Midland, Michigan; Director, The Pittson Company (mining and marketing of
     coal for electric utility and steel industries) One Pickwick Plaza,
     Greenwich, Connecticut.     

                                       9
<PAGE>
 
JAMES R. BIRLE, Director, Chairman, Dividend Policy Committee and Member,
Investment Committee
    
     Chairman (since 1997), President (1994-1997) and Founder (since 1994),
     Resolute Partners, LLC (private merchant bank), 2 Greenwich Plaza, Suite
     100, Greenwich, Connecticut; General Partner (1988-1994), The Blackstone
     Group, 34 Park Avenue, New York, New York; Co-Chairman and Chief Executive
     Officer, Wickes Companies, Inc. (diversified manufacturer and distributor),
     3340 Ocean Park Boulevard, Santa Monica, California; Director (since 1996),
     IKON Office Solutions (diversified office products and technology
     solutions), 825 Duportail Road, Valley Forge, Pennsylvania; Director:
     Drexel Industries, Inc., Connecticut Health and Education Facilities
     Authority, and Transparency International; Trustee, Villanova University
     and The Sea Research Foundation; Director (1991-1996), Connecticut Mutual
     Life Insurance Company, 140 Garden Street, Hartford, Connecticut.     

FRANK C. CARLUCCI, III, Director and Member, Board Affairs and
Dividend Policy Committees
    
     Chairman (since 1993), Vice Chairman (1989-1993), The Carlyle Group
     (merchant banking corporation), 1001 Pennsylvania Avenue, N.W., Washington,
     D.C.; Director: Ashland Oil Inc. (producer of petroleum products), 1000
     Ashland Drive, Russell, Kentucky; BDM International, Inc. (professional and
     technical services to public and private sector), 7915 Jones Branch Drive,
     McLean, Virginia; CB Commercial Real Estate Group, Inc. (real estate broker
     subsidiary of Carlyle Holding Corporation), 533 Fremont Avenue, Los
     Angeles, California; East New York Savings Bank; General Dynamics
     Corporation (manufacturer of military equipment), 3190 Fairview Park Drive,
     Falls Church, Virginia; Kaman Corporation (diversified manufacturer), 1332
     Blue Hills Avenue, Bloomfield, Connecticut; Northern Telecom Ltd. (digital
     telecommunications systems), 2920 Matheson Boulevard East, Mississauga,
     Ontario, Canada; The Quaker Oats Company (manufacturer of food products),
     321 North Clark Street, Chicago, Illinois; Sun Resorts Ltd., N.V.;
     Westinghouse Electric Corporation (electronic systems, electric power
     generating equipment and broadcasting), 11 Stanwix Street, Pittsburgh,
     Pennsylvania; Chairman, Neurogen Corporation and Texas Biotechnology
     Corporation; Trustee, The Rand Corporation; Director (until 1997) Bell
     Atlantic Corporation (telecommunications), 1717 Arch Street, Philadelphia,
     Pennsylvania; Chairman; Director (1989-1996), Connecticut Mutual Life
     Insurance Company, 140 Garden Street, Hartford, Connecticut.     

GENE CHAO, Director and Member, Auditing and Dividend Policy Committees
    
     Chairman and Chief Executive Officer, Computer Projections, Inc. (computer
     graphics), 733 S.W. Vista Avenue, Portland, Oregon; Director (1990-1996),
     Connecticut Mutual Life Insurance Company, 140 Garden Street, Hartford,
     Connecticut.     

PATRICIA DIAZ DENNIS, Director and Member, Auditing and Human Resources
Committees
    
     Senior Vice President and Assistant General Counsel (since 1995), SBC
     Communications Inc. (telecommunications), 175 East Houston, San Antonio,
     Texas; Special Counsel-Communication Law Matters (1993-1995), Sullivan &
     Cromwell (law firm), 1701 Pennsylvania Avenue, N.W., Washington, D.C.;
     Trustee (since 1995), Federal Communications Bar Association Foundation;
     Trustee, Tomas Rivera Policy Institute and Radio and Television News
     Directors Foundation; Director: National Public Radio, Reading Is
     Fundamental and Foundation for Women's Resources; Director (1995-1996),
     Connecticut Mutual Life Insurance Company, 140 Garden Street, Hartford,
     Connecticut.     

                                       10
<PAGE>
 
    
ANTHONY DOWNS, Director and Member, Auditing and Investment Committees     
    
     Senior Fellow, The Brookings Institution (non-profit policy research
     center), 1775 Massachusetts Avenue, N.W., Washington, D.C.; Director: The
     Pittway Corporation (publications and security equipment), 200 South Wacker
     Drive, Suite 700, Chicago, Illinois; National Housing Partnerships
     Foundation (non-profit organization to own and manage rental housing), 1225
     Eye Street, N.W., Washington, D.C.; Bedford Property Investors, Inc. (real
     estate investment trust), 3658 Mt. Diablo Boulevard, Lafayette, California;
     General Growth Properties, Inc. (real estate investment trust), 215 Keo
     Way, Des Moines, Iowa; NAACP Legal and Educational Defense Fund, Inc.
     (civil rights organization), 99 Hudson Street, New York, New York; Trustee:
     Urban Institute (public policy research organization), 2100 M Street, N.W.,
     Washington, D.C. and Urban Land Institute (educational and research
     organization, 625 Indiana Avenue, N.W., Washington, D.C.     

JAMES L. DUNLAP, Director and Member, Human Resources and Board Affairs
Committees
    
     President and Chief Operating Officer (since 1996), United Meridian
     Corporation (oil exploration), 1201 Louisiana, Houston, Texas; Senior Vice
     President (1987-1996), Texaco, Inc. (producer of petroleum products), 2000
     Westchester Avenue, White Plains, New York.     

WILLIAM B. ELLIS, Director and Member, Auditing and Investment Committees
    
     Senior Fellow (since 1995), Yale University School of Forestry and
     Environmental Studies, New Haven, Connecticut; Chairman (1983-1995) and
     Chief Executive Officer (1983-1993), Northeast Utilities (electric
     utility), 107 Selden Street, Berlin, Connecticut; Director, The Hartford
     Steam Boiler Inspection and Insurance Company (property and casualty
     insurer), One State Street, Hartford, Connecticut; Director (since 1996),
     Advest Group, Inc. (financial services holding company), 280 Trumbull
     Street, Hartford, Connecticut; Director (since 1995), Catalytica Combustion
     Systems, Inc.; Director, The National Museum of National History of the
     Smithsonian Institution, Washington, D.C.; Director (1985-1996),
     Connecticut Mutual Life Insurance Company, 140 Garden Street, Hartford,
     Connecticut.     

ROBERT M. FUREK, Director and Member, Dividend Policy and Investment Committees
    
     President (since 1995), International Distillers and Vintners, Inc.;
     President and Chief Executive Officer (1987-1996), Heublein, Inc. (beverage
     distributor), 450 Columbus Boulevard, Hartford, Connecticut; Director, The
     Dexter Corporation (producer of specialty chemicals and papers), One Elm
     Street, Windsor Locks, Connecticut; Corporator, Hartford Hospital and The
     Bushnell Memorial, Hartford, Connecticut; Trustee, Colby College, Mayflower
     Hill Drive, Waterville, Maine; Director (1990-1996), Connecticut Mutual
     Life Insurance Company, 140 Garden Street, Hartford, Connecticut.     

CHARLES K. GIFFORD, Director and Member, Investment and Auditing Committees
    
     Chief Executive Officer (since 1995), Chairman (1995-1996) and President
     (1989-1996), The First National Bank of Boston and Bank of Boston
     Corporation (bank holding company), 100 Federal Street, Boston,
     Massachusetts; Director, Member of Audit and Compensation Committees,
     Boston Edison Co. (public utility electric company), 800 Boylston Street,
     Boston, Massachusetts.     

                                       11
<PAGE>
 
WILLIAM N. GRIGGS, Director, Chairman, Auditing Committee and Member,
Investment Committee
         
     Managing Director, Griggs & Santow Inc. (financial consultants), 75 Wall
     Street, New York, New York; Director, T/SF Communications, Inc.
     (diversified publishing and communications company), Tulsa, Oklahoma.      
    
GEORGE B. HARVEY, Director, Chairman, Human Resources Committee and Member,
Board Affairs Committee      
         
     Retired; Chairman, President and Chief Executive Officer (1983-1996),
     Pitney Bowes, Inc. (office machines manufacturer), One Elmcroft Road,
     Stamford, Connecticut; Director: Merrill Lynch & Co., Inc. (financial
     services holding company), 250 Vesey Street, World Financial Center, North
     Tower, New York, New York; The McGraw-Hill Companies, Inc. (multimedia
     publishing and information services), 1221 Avenue of the Americas, New
     York, New York; Stamford Hospital, Stamford, Connecticut; Pfizer, Inc.
     (pharmaceutical and health-care products), 235 East 42nd Street, New York,
     New York; The Catalyst; Member, Board of Overseers, Wharton School of
     Finance, University of Pennsylvania; Director (1989-1996), Connecticut
     Mutual Life Insurance Company, 140 Garden Street, Hartford, Connecticut.
          
BARBARA B. HAUPTFUHRER, Director and Member, Board Affairs and
Investment Committees
         
     Director and Member, Compensation, Nominating and Audit Committees, The
     Vanguard Group of Investment Companies including among others the following
     funds: Vanguard/Windsor Fund, Vanguard/Wellington Fund, Vanguard/Morgan
     Growth Fund, Vanguard/Wellesley Income Fund, Vanguard/Gemini Fund,
     Vanguard/Explorer Fund, Vanguard Municipal Bond Fund, Vanguard Fixed Income
     Securities Fund, Vanguard Index Trust, Vanguard World Fund, Vanguard/Star
     Fund, Vanguard Ginnie Mae Fund, Vanguard/Primecap Fund, Vanguard
     Convertible Securities Fund, Vanguard Quantitative Fund, Vanguard/Trustees
     Commingled Equity Fund, Vanguard/Trustees Commingled Fund-International,
     Vanguard Money Market Trust, Vanguard/Windsor II, Vanguard Asset Allocation
     Fund and Vanguard Equity Income Fund (principal offices, Drummers Lane,
     Valley Forge, Pennsylvania); Director, Chairman of Retirement Benefits
     Committee and Pension Fund Investment Review - USA and Canada and Member,
     Audit, Finance and Executive Committees, The Great Atlantic & Pacific Tea
     Company, Inc. (operator of retail food stores), 2 Paragon Drive, Montvale,
     New Jersey; Director, Chairman of Nominating Committee and Member,
     Compensation Committee, Knight-Ridder, Inc. (publisher of daily newspapers
     and operator of cable television and business information systems), One
     Herald Plaza, Miami, Florida;  Director and Member, Compensation Committee,
     Raytheon Company (electronics manufacturer), 141 Spring Street, Lexington,
     Massachusetts; Director and Member, Executive Committee and Chairman, Human
     Resources and Independent Directors Committees, IKON Office Solutions
     (diversified office products and technology solutions), 825 Duportail Road,
     Valley Forge, Pennsylvania.      

SHELDON B. LUBAR, Director, Chairman, Board Affairs Committee and Member,
Investment Committee
         
     Chairman, Lubar & Co. Incorporated (investment management and advisory
     company), 777 East Wisconsin Avenue, Milwaukee, Wisconsin; Chairman and
     Director, The Christiana Companies, Inc. (real estate development);
     Director: Firstar Bank, Firstar Corporation (bank holding company), SLX
     Energy, Inc. (oil and gas exploration); Member, Advisory Committee, Venture
          

                                      12
<PAGE>

         
     Capital Fund, L.P. (principal offices, 777 East Wisconsin Avenue,
     Milwaukee, Wisconsin); Director: Grey Wolf Drilling Co. (contract oil and
     gas drilling), 2000 Post Oak Boulevard, Houston, Texas; Marshall Erdman and
     Associates, Inc. (design, engineering, and construction firm), 5117
     University Avenue, Madison, Wisconsin; MGIC Investment Corporation
     (investment company), MGIC Plaza, 111 E. Kilbourn Avenue, Milwaukee,
     Wisconsin; Ameritech, Inc. (regional holding company for telephone
     companies), 30 South Wacker Drive, Chicago, Illinois, Director (since
     1995), Energy Ventures, Inc., 5 Post Oak Park, Houston, Texas; Director
     (1989-1995), Prideco, Inc. (drill collar manufacturer), 6039 Thomas Road,
     Houston, Texas.     
        
WILLIAM B. MARX, JR., Director and Member, Dividend Policy and Board Affairs
Committees
         
     Consultant (since 1996); Senior Executive Vice President (1996), Lucent
     Technologies, Inc. (public telecommunications systems and software), 600
     Mountain Road, Murray Hill, New Jersey; Executive Vice President and Chief
     Executive Officer, Multimedia Products Group (1994-1995), AT&T (global
     communications and network computing company), 295 North Maple Avenue,
     Basking Ridge, New Jersey; Director (since 1996), California Microwave,
     Inc., Redwood City, California; Member (since 1996), Advisory Council,
     Graduate School of Business, Stanford University, Stanford, California;
     Chairman, Executive Committee (since 1996), National Minority Supplier
     Development Council, Inc., 15 West 39th Street, New York, New York.      

JOHN F. MAYPOLE, Director and Member, Board Affairs and Human Resources
Committees
         
     Managing Partner, Peach State Real Estate Holding Company (real estate
     investment company), P.O. Box 1223, Toccoa, Georgia; Consultant to
     institutional investors; Co-owner of family businesses (including Maypole
     Chevrolet-Geo, Inc. and South Georgia Car Rentals, Inc.); Director (since
     1996), Coating Technologies International; Director, Chairman, Finance
     Committee and Member, Executive Committee and Human Resources Committee on
     Directors, Bell Atlantic Corporation (telecommunications), 1717 Arch
     Street, Philadelphia, Pennsylvania; Director and Chairman, Compensation
     Committee, Briggs Industries, Inc. (plumbing fixtures), 4350 W. Cypress
     Street, Tampa, Florida; Director, Chairman, Audit Committee and Member,
     Compensation Committee, Blodgett Corporation; Director, Chairman, Products
     Committee and Member, Compensation and Audit Committee (until 1996), Igloo
     Corporation (portable coolers), 1001 W. Sam Houston Parkway North, Houston,
     Texas; Director and Member, Senior Management Committee, Dan River, Inc.
     (textile manufacturer), 2291 Memorial Drive, Danville, Virginia; Director,
     Davies, Turner & Company; Director (1989-1996), Connecticut Mutual Life
     Insurance Company, 140 Garden Street, Hartford, Connecticut.      

DONALD F. MCCULLOUGH, Director and Member, Dividend Policy and Auditing
Committees
         
     Retired (since 1988); former Chairman and Chief Executive Officer, Collins
     & Aikman Corp. (manufacturer of textile products), 210 Madison Avenue, New
     York, New York; Director (1971-1996); Bankers Trust New York Corp. (bank
     holding company) and Bankers Trust Company (principal offices, 280 Park
     Avenue, New York, New York); Director (1975-1996), Melville Corporation
     (specialty retailer), One Theall Road, Rye, New York.      
    
JOHN J. PAJAK, President and Chief Operating Officer, Director and Member,
Dividend Policy and Investment Committees      
         
     President, Director and Chief Operating Officer (since 1996), Vice Chairman
     and Chief Administrative Officer (1996), Executive Vice President (1987-
     1996) of MassMutual; Director       

                                      13
<PAGE>
 
         
     (since 1994), MassMutual Holding Company (wholly-owned holding company
     subsidiary of MassMutual); Trustee (since 1996), MassMutual Holding Trust I
     (wholly-owned holding company subsidiary of MassMutual Holding Company);
     Director (since 1996), MassMutual International Inc. (wholly-owned
     subsidiary of MassMutual Holding Company to act as service provider for
     international insurance companies); Director (1994-1996), MassMutual
     Holding Company Two, Inc. (former wholly-owned holding company subsidiary
     of MassMutual); MassMutual Holding Company Two MSC, Inc. (former wholly-
     owned holding company subsidiary of MassMutual Holding Company Two, Inc.);
     and Mirus Insurance Company (formerly MML Pension Insurance Company, a
     wholly-owned insurance subsidiary of MassMutual Holding Company Two MSC,
     Inc.) (principal offices, 1295 State Street, Springfield, Massachusetts);
     Director (1995-1996), National Capital Health Plan, Inc. (health
     maintenance organization), Washington, D.C.      
    
THOMAS B. WHEELER, Chairman, Chief Executive Officer, Chairman, Investment
Committee and Member, Dividend Policy and Board Affairs Committees      
         
     Chairman (since 1996), Chief Executive Officer (since 1988), and President
     (1987-1996) of MassMutual; Chairman (since 1996), MassMutual Holding Trust
     I (wholly-owned holding company subsidiary of MassMutual Holding Company);
     Director (since 1996), MassMutual International Inc. (wholly-owned
     subsidiary of MassMutual Holding Company to act as service provider for
     international insurance companies); Chairman and Chief Executive Officer
     (since 1995), DLB Acquisition Corporation (holding company for investment
     advisers); Chairman of the Board of Directors (1994-1996), Mirus Insurance
     Company (formerly MML Pension Insurance Company, a wholly-owned insurance
     subsidiary of MassMutual Holding Company Two MSC, Inc.) (principal offices,
     1295 State Street, Springfield, Massachusetts); Director, The First
     National Bank of Boston and Bank of Boston Corporation (bank holding
     company), 100 Federal Street, Boston, Massachusetts and Massachusetts
     Capital Resources Company, 545 Boylston Street, Boston, Massachusetts;
     Chairman and Director, Oppenheimer Acquisition Corp. (parent of
     OppenheimerFunds, Inc., an investment management company), Two World Trade
     Center, New York, New York; Director (since 1993), Textron, Inc.
     (diversified manufacturing company), 40 Westminster Street, Providence,
     Rhode Island; Chairman of the Board of Directors (1992-1995), Concert
     Capital Management, Inc. (former wholly-owned investment advisory
     subsidiary of DLB Acquisition Corporation), One Memorial Drive, Cambridge,
     Massachusetts.
          
ALFRED M. ZEIEN, Director and Member, Board Affairs and Human Resources
Committees

     Chairman and Chief Executive Officer, The Gillette Company (manufacturer of
     personal care products), Prudential Tower Building, Boston, Massachusetts;
     Director: Polaroid Corporation (manufacturer of photographic products), 549
     Technology Square, Cambridge, Massachusetts; Repligen Corporation
     (biotechnology), One Kendall Square, Cambridge, Massachusetts; Bank of
     Boston Corporation (bank holding company), 100 Federal Street, Boston,
     Massachusetts; and Raytheon Corporation (electronics manufacturer), 141
     Spring Street, Lexington, Massachusetts; Trustee, University Hospital of
     Boston, Massachusetts; Trustee, Marine Biology Laboratory and Woods Hole
     Oceanographic Institute, Woods Hole, Massachusetts.


                                      14
<PAGE>
 
Executive Vice Presidents
    
LAWRENCE V. BURKETT, JR., Executive Vice President and General Counsel      
         
     Executive Vice President and General Counsel (since 1993) of MassMutual;
     President, Chief Executive Officer and Director (since 1996), CM Assurance
     Company, CM Benefit Insurance Company, C.M. Life Insurance Company and MML
     Bay State Life Insurance Company (wholly-owned insurance company
     subsidiaries of MassMutual); Director (since 1996), MassMutual Holding MSC,
     Inc. and Trustee (since 1996), MassMutual Holding Trust I and MassMutual
     Holding Trust II (wholly-owned holding company subsidiaries of MassMutual
     Holding Company); Director (since 1996): MassMutual International Inc.
     (wholly-owned subsidiary of MassMutual Holding Company to act as service
     provider for international insurance companies); G.R. Phelps, Inc. (wholly-
     owned broker-dealer subsidiary of MassMutual Holding Company); CM Advantage
     Inc.(wholly-owned subsidiary of MassMutual Holding Trust II to act as
     general partner in real estate limited partnerships); Director, MassMutual
     Holding Company (wholly-owned holding company subsidiary of MassMutual);
     Director (1994-1996), MassMutual Holding Company Two, Inc. (former wholly-
     owned holding company subsidiary of MassMutual), MassMutual Holding Company
     Two MSC, Inc. (former wholly-owned holding company subsidiary of MassMutual
     Holding Company Two, Inc.) and Mirus Insurance Company (formerly MML
     Pension Insurance Company, a wholly-owned insurance subsidiary of
     MassMutual Holding Company Two MSC, Inc.) (principal offices, 1295 State
     Street, Springfield, Massachusetts); Chairman and Director (since 1996),
     MML Investors Services, Inc. (wholly-owned broker-dealer subsidiary of
     MassMutual Holding Company), 1414 Main Street, Springfield, Massachusetts;
     Director, Cornerstone Real Estate Advisers, Inc. (wholly-owned real estate
     investment adviser subsidiary of MassMutual Holding Company), One Financial
     Plaza, Suite 1700, Hartford, Connecticut; Vice President (since 1996) and
     Director, Sargasso Mutual Insurance Co., Ltd., Victoria Hall, Victoria
     Street, Hamilton, Bermuda; Director, MassMutual of Ireland, Ltd. (wholly-
     owned subsidiary of MassMutual that formerly provided group insurance claim
     services), One Earlsfort Centre, Hatch Street, Dublin, Ireland; Chairman
     (1994-1996), Director (1993-1996), MML Reinsurance (Bermuda) Ltd. (wholly-
     owned property and casualty reinsurance subsidiary of MassMutual Holding
     Company) and Director (since 1995), MassMutual International (Bermuda) Ltd.
     (wholly-owned subsidiary of MassMutual Holding Company that distributes
     variable insurance products in overseas markets) (principal offices, 41
     Cedar Avenue, Hamilton, Bermuda).      

JOHN B. DAVIES, Executive Vice President
         
     Executive Vice President (since 1994) of MassMutual; Director (since 1996),
     CM Assurance Company, CM Benefit Insurance Company, C.M. Life Insurance
     Company and MML Bay State Life Insurance Company (wholly-owned insurance
     company subsidiaries of MassMutual); Director (since 1996), MassMutual
     Holding MSC, Inc. and Trustee (since 1996), MassMutual Holding Trust II
     (wholly-owned holding company subsidiaries of MassMutual Holding Company)
     (principal offices, 1295 State Street, Springfield, Massachusetts);
     Director, MML Investors Services, Inc. (wholly-owned broker-dealer
     subsidiary of MassMutual Holding Company), MML Insurance Agency, Inc.
     (wholly-owned subsidiary of MML Investors Services, Inc.), MML Insurance
     Agency of Ohio, Inc. (subsidiary of MML Insurance Agency, Inc.); Director
     (since 1995), MML Insurance Agency of Nevada, Inc. (subsidiary of MML
     Insurance Agency, Inc.); Director (since 1996), MML Insurance Agency of
     Mississippi, P.C., DISA Insurance Services of America, Inc. (Alabama), and
     Diversified Insurance Services of America, Inc. (Hawaii) (subsidiaries of
     MML Insurance Agency, Inc.) (principal offices, 1414 Main Street,
     Springfield, Massachusetts); Director: Cornerstone Real Estate Advisers,
     Inc. (wholly-owned       


                                      15
<PAGE>
 
         
     real estate investment adviser subsidiary of MassMutual Holding Company),
     One Financial Plaza, Suite 1700, Hartford, Connecticut; and Life
     Underwriter Training Council, 7625 Wisconsin Avenue, Bethesda, Maryland. 
          

DANIEL J. FITZGERALD, Executive Vice President, Corporate Financial Operations
         
     Executive Vice President, Corporate Financial Operations of MassMutual;
     Director (since 1996), CM Assurance Company, CM Benefit Insurance Company,
     and C.M. Life Insurance Company (wholly-owned insurance company
     subsidiaries of MassMutual); Antares Leveraged Capital Corp. (finance
     company); CM Advantage Inc. and Westheimer 335 Suites, Inc. (wholly-owned
     subsidiaries of MassMutual Holding Trust II to act as general partners in
     real estate limited partnerships); HYP Management, Inc. (wholly-owned
     subsidiary of MassMutual Holding Trust II to act as managing member of
     MassMutual High Yield Partners LLC); MMHC Investment, Inc. (wholly-owned
     subsidiary of MassMutual Holding Trust II); MassMutual International Inc.
     (wholly-owned subsidiary of MassMutual Holding Company to act as service
     provider for international insurance companies); MassMutual Holding MSC,
     Inc. (wholly-owned holding company subsidiary of MassMutual Holding
     Company); Trustee (since 1996), MassMutual Holding Trust I and MassMutual
     Holding Trust II (wholly-owned holding company subsidiaries of MassMutual
     Holding Company); Director (since 1995), DLB Acquisition Corporation
     (holding company for investment advisers); Vice President and Director,
     MassMutual Holding Company (wholly-owned holding company subsidiary of
     MassMutual); Director, MML Bay State Life Insurance Company (wholly-owned
     insurance subsidiary of MassMutual); and MML Realty Management Corporation
     (wholly-owned real estate management subsidiary of MassMutual Holding
     Company); Vice President and Director (1994-1996), MassMutual Holding
     Company Two, Inc. and MassMutual Holding Company Two MSC, Inc. (former
     direct and indirect wholly-owned holding company subsidiaries of
     MassMutual); Director (1994-1996), Mirus Insurance Company (formerly MML
     Pension Insurance Company, a wholly-owned insurance subsidiary of
     MassMutual Holding Company Two MSC, Inc.); Director (1994-1995), MML Real
     Estate Corporation (wholly-owned real estate management subsidiary of
     MassMutual Holding Company) (principal offices, 1295 State Street,
     Springfield, Massachusetts); Director (1994-1996), Concert Capital
     Management, Inc. (former investment advisory subsidiary of DLB Acquisition
     Corporation), One Memorial Drive, Cambridge, Massachusetts; Director and
     Member, Compensation Committee, Cornerstone Real Estate Advisers, Inc., One
     Financial Plaza, Suite 1700, Hartford, Connecticut; Director, and Member,
     Audit and Compensation Committees, MML Investors Services, Inc. (wholly-
     owned broker dealer subsidiary of MassMutual Holding Company); Director,
     MML Insurance Agency, Inc. (wholly-owned subsidiary of MML Investors
     Services, Inc.); Director (since 1996), MML Insurance Agency of Ohio, Inc.,
     MML Insurance Agency of Nevada, Inc., MML Insurance Agency of Mississippi,
     P.C., DISA Insurance Services of America, Inc. (Alabama), and Diversified
     Insurance Services of America, Inc. (Hawaii) (subsidiaries of MML Insurance
     Agency, Inc.) (principal offices, 1414 Main Street, Springfield,
     Massachusetts); Director, MassMutual of Ireland, Ltd. (wholly-owned
     subsidiary of MassMutual that formerly provided group insurance claim
     services), One Earlsfort Centre, Hatch Street, Dublin, Ireland.      
    
JOHN V. MURPHY, Executive Vice President      
         
     Executive Vice President (since 1997) of MassMutual; Executive Vice
     President, Director and Chief Operating Officer (1995-1997), David L.
     Babson and Company Incorporated (wholly-owned investment advisory
     subsidiary of DLB Acquisition Corporation), Chief Operating Officer (1993-
     1996), Concert Capital Management, Inc. (former investment advisory
     subsidiary of DLB Acquisition Corporation), (principal offices, One
     Memorial Drive, Cambridge,       


                                      16
<PAGE>
 
         
     Massachusetts); Senior Vice President and Director (since 1995), Potomac
     Babson Incorporated (investment advisory subsidiary of David L. Babson and
     Company Incorporated), New York, New York; Director and Senior Vice
     President (since 1995), DLB Acquisition Corporation (holding company for
     investment advisers) and Trustee (since 1997), MassMutual Institutional
     Funds (open-end investment company) (principal offices, 1295 State Street,
     Springfield, Massachusetts).      

GARY E. WENDLANDT, Executive Vice President and Chief Investment Officer
         
     Chief Investment Officer and Executive Vice President of MassMutual;
     Chairman (since 1995), Trustee (since 1986) and President (1983-1995),
     MassMutual Corporate Investors and Chairman (since 1995), Trustee (since
     1988) and President (1988-1995), MassMutual Participation Investors
     (closed-end investment companies); Chairman (since 1995), Vice Chairman
     (1993-1995) and Trustee, MML Series Investment Fund (open-end investment
     company); Chairman, Chief Executive Officer and Member, Investment Pricing
     Committee, MassMutual Institutional Funds (open-end investment company);
     Advisory Board Member (since 1996), MassMutual High Yield Partners LLC
     (high yield bond fund); Chairman and President (since 1996), MassMutual
     Holding MSC, Inc. and MassMutual Holding Trust II (wholly-owned holding
     company subsidiaries of MassMutual Holding Company); Chairman (since 1996):
     Antares Leveraged Capital Corp. (finance company); HYP Management, Inc.
     (wholly-owned subsidiary of MassMutual Holding Trust II to act as managing
     member of MassMutual High Yield Partners LLC); and MMHC Investment, Inc.
     (wholly-owned subsidiary of MassMutual Holding Trust II); President and
     Trustee (since 1996), MassMutual Holding Trust I (wholly-owned holding
     company subsidiary of MassMutual Holding Company); Vice Chairman and
     Director (since 1996), MassMutual International Inc. (wholly-owned
     subsidiary of MassMutual Holding Company to act as service provider for
     international insurance companies); Director (since 1996), CM Advantage
     Inc. (wholly-owned subsidiary of MassMutual Holding Trust II to act as
     general partner in real estate limited partnerships); President and
     Director (since 1995), DLB Acquisition Corporation (holding company for
     investment advisers); Chairman, Chief Executive Officer, President and
     Director, MassMutual Holding Company (wholly-owned holding company
     subsidiary of MassMutual); Chairman and Director, MML Realty Management
     Corporation (wholly-owned real estate management subsidiary of MassMutual
     Holding Company); Chairman (1994-1995) and Director (1993-1995), MML Real
     Estate Corporation (wholly-owned real estate management subsidiary of
     MassMutual Holding Company); Chairman, President and Chief Executive
     Officer (1994-1996), MassMutual Holding Company Two, Inc. (former wholly-
     owned holding company subsidiary of MassMutual); Chairman and President
     (1994-1996), Chief Executive Officer (1995-1996), MassMutual Holding
     Company Two MSC, Inc. (former wholly-owned holding company subsidiary of
     MassMutual Holding Company Two, Inc.); (principal offices, 1295 State
     Street, Springfield, Massachusetts); Chairman and Member, Executive and
     Compensation Committees (since 1994), Member, Audit Committee (since 1995),
     and Chief Executive Officer (1994-1996), Cornerstone Real Estate Advisers,
     Inc. (wholly-owned real estate investment advisory subsidiary of MassMutual
     Holding Trust I), One Financial Plaza, Suite 1700, Hartford, Connecticut;
     President and Chief Executive Officer (1994-1996) and Director (1992-1996),
     Concert Capital Management, Inc.(former investment advisory subsidiary of
     DLB Acquisition Corporation) One Memorial Drive, Cambridge, Massachusetts;
     Director, Oppenheimer Acquisition Corporation (parent of OppenheimerFunds,
     Inc., an investment management company), Two World Trade Center, New York,
     New York; Supervisory Director, MassMutual/Carlson CBO N.V. (collateralized
     bond fund), 14 John Gorsiraweg, Willemstad, Curacao, Netherlands Antilles;
     Director, Merrill Lynch Derivative Products, Inc., World Financial Center,
     North Tower, New York, New York; MassMutual Corporate Value Partners
     Limited (investor in debt and equity securities) and MassMutual Corporate
     Value Limited      


                                      17
<PAGE>
 
         
     (parent of MassMutual Corporate Value Partners Limited) (principal offices,
     c/o BankAmerica Trust and Banking Corporation, Box 1092, George Town, Grand
     Cayman, Cayman Islands, British West Indies); Director (since 1995), Mass
     Seguros de Vida, S.A., Huerfanos No. 770, Santiago, Chile; President and
     Director (since 1995), MassMutual International (Bermuda) Ltd. (wholly-
     owned subsidiary of MassMutual Holding Company that distributes variable
     insurance products in overseas markets), 41 Cedar Avenue, Hamilton,
     Bermuda.      
    
b. The Investment Sub-Adviser      
    
The directors and executive officers of Babson, their positions and their other
business affiliations and business experience for the past two years are as
follows:      

Directors and Executive Officers
    
HANI K. FINDAKLY, Director      
    
Director (since 1996), David L. Babson & Company, Inc., One Memorial Drive,
Cambridge, Massachusetts; President (since 1996), Potomac Babson Inc.
(registered investment adviser), 1290 Avenue of the Americas, New York, New
York; President (1989-1995), Potomac Capital, Inc. (registered investment
adviser), 1290 Avenue of the Americas, New York, New York.      
    
RONALD E. GWOZDZ, Director and Executive Vice President      
    
Director (since 1996), Executive Vice President (since 1996) and Senior Vice
President (1991-1996), David L. Babson & Company, Inc., One Memorial Drive,
Cambridge, Massachusetts.      
    
JAMES W. MACALLEN, Director and Executive Vice President      
    
Director and Executive Vice President (since 1996), David L. Babson & Company,
Inc., One Memorial Drive, Cambridge, Massachusetts; Senior Vice President
(1996), Concert Capital Management, Inc., One Memorial Drive, Cambridge,
Massachusetts; Principal (1994-1995), Hagler, Mastrovita & Hewitt (investment
counsel), 225 Franklin Street, Boston, Massachusetts; President (1992-1994),
Chief Investment Officer (1991-1994), and Vice President (1983-1992), Wilmington
Capital Management, Inc. (investment counsel), 1 Rodney Square, Wilmington,
Delaware.      
    
EDWARD L. MARTIN, Director and Executive Vice President      
    
Director (since 1990), Executive Vice President (since 1995) and Senior Vice
President (1988-1995), David L. Babson & Company, Inc., One Memorial Drive,
Cambridge, Massachusetts; Director and Senior Vice President (since 1996),
Potomac Babson Inc. (registered investment adviser), 1290 Avenue of the
Americas, New York, New York.      
    
PETER C. SCHLIEMANN, Director and Executive Vice President      
    
Executive Vice President (since 1992), Senior Vice President (1984-1992) and
Director (since 1982), David L. Babson & Company, Inc. (registered investment
adviser), One Memorial Drive, Cambridge, Massachusetts; Director (1995-1996),
Concert Capital Management, Inc. (former investment advisory subsidiary of DLB
Acquisition Corporation), One Memorial Drive, Cambridge, Massachusetts;      

                                      18
<PAGE>
 
    
FRANK L. TARANTINO, Senior Vice President, Clerk and Chief Operating Officer 
     
    
Senior Vice President, Clerk and Chief Operating Officer (since 1997), David L.
Babson & Company, Inc., One Memorial Drive, Cambridge, Massachusetts; President
(1993-1997), Liberty Securities Corporation (broker-dealer), 600 Atlantic
Avenue, Boston, Massachusetts.      
    
PETER C. THOMPSON, Director and President      
    
President and Director (since 1983), David L. Babson & Company, Inc. (registered
investment adviser), One Memorial Drive, Cambridge, Massachusetts.; Director
(1995-1996), Concert Capital Management, Inc. (former investment advisory
subsidiary of DLB Acquisition Corporation), One Memorial Drive, Cambridge,
Massachusetts; Director (since 1996), Potomac Babson Inc. (registered investment
adviser) 1290 Avenue of the Americas, New York, New York.      
    
JONATHAN B. TREAT, Director and Senior Vice President      
    
Director and Senior Vice President (since 1992), David L. Babson & Company,
Inc., One Memorial Drive, Cambridge, Massachusetts.      
    
ROLAND W. WHITRIDGE, Director and Senior Vice President      
    
Director (since 1990) and Senior Vice President (since 1992), David L. Babson &
Company, Inc., One Memorial Drive, Cambridge, Massachusetts.      

Item 29: Principal Underwriters    Not Applicable.
- -------------------------------                   

Item 30: Location of Accounts and Records
- -----------------------------------------

Each account, book or other document required to be maintained by Registrant
pursuant to Section 31(a) of the Investment Company Act of 1940 and Rules 31a-1
to 31a-3 thereunder are maintained by Registrant at 1295 State Street,
Springfield, Massachusetts 01111.

Item 31: Management Services  Not Applicable.
- ----------------------------                 

Item 32: Undertakings   Not Applicable.
- ---------------------                  


                                      19
<PAGE>
 
                                 SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment
Company Act of 1940, Registrant certifies that it has duly caused this
Registration Statement to be signed on its behalf by the undersigned, thereto
duly authorized, in the City of Springfield and in the Commonwealth of
Massachusetts on the 25th day of April, 1997. The Registrant certifies that this
Post-Effective Amendment meets the requirements for effectiveness pursuant to
Rule 485(b) under the Securities Act of 1933.
 
                          MML SERIES INVESTMENT FUND
 
                        By: /s/ Hamline C. Wilson
                           -----------------------
                            Hamline C. Wilson
                            Vice President and Chief Financial Officer

Pursuant to the requirements of the Securities Act of 1933, this Registration
Statement has been signed below by the following persons in the capacities and
on this 25th day of April, 1997.

          Signature                      Title
          ---------                      -----

     /s/ Gary E. Wendlandt              Chairman and Trustee
     ---------------------                                  
     Gary E. Wendlandt

     Richard G. Dooley*                 Vice-Chairman and
     ------------------                 Trustee          
     Richard G. Dooley                          

     Mary E. Boland*                    Trustee
     ---------------                           
     Mary E. Boland*

     Ronald J. Abdow*                   Trustee
     ----------------                          
     Ronald J. Abdow

     Charles J. McCarthy*               Trustee
     --------------------                      
     Charles J. McCarthy

     John H. Southworth*                Trustee
     -------------------                       
     John H. Southworth

     /s/ Stuart H. Reese                President
     -------------------                (Principal Executive Officer) 
     Stuart H. Reese                                                  

      /s/ Hamline C. Wilson             Chief Financial Officer
     ----------------------             (Principal Financial & 
     Hamline C. Wilson                  Accounting Officer)    
                                                            
 
     *By: /s/ Stephen L. Kuhn
         --------------------
              Stephen L. Kuhn
              Attorney-in-Fact

The name MML Series Investment Fund is the designation of the Trustees under an
Declaration of Trust dated December 19, 1984, as amended from time to time. The
obligations of MML Trust are not personally binding upon, nor shall resort be
had to the property of, any of the Trustees, shareholders, officers, employees
or agents of MML Trust, but MML Trust's property only shall be bound.


                                      20
<PAGE>
 
                               INDEX TO EXHIBITS

<TABLE>     
<CAPTION> 

Exhibit No.              Title of Exhibit
- -----------              ----------------
<S>                      <C> 


     11(a)               Consent of Independent Accountants

     11(b)               Power of Attorney

     27                  Financial Data Schedule
 

</TABLE>      

<PAGE>
 
[LOGO OF COOPERS & LYBRAND APPEARS HERE]

                                                                    Exhibit 11.A

                      CONSENT OF INDEPENDENT ACCOUNTANTS

To the Board of Trustees of
MML Series Investment Fund

We consent to the inclusion in this Post-Effective Amendment No. 36 to the 
Registration Statement No. 2-39334 of MML Series Investment Fund on Form N-1A 
(File No. 811-2224) of our report dated January 31, 1997 on our audit of the 
financial statements and financial highlights of each of the Funds which 
comprise MML Series Investment Fund for the year ended December 31, 1996. We 
also consent to the reference to our Firm under the caption "Experts" in the 
Statement of Additional Information.


Springfield, Massachusetts
April 25, 1997

<PAGE>
 

                               POWER OF ATTORNEY
                               -----------------
                            

     The Undersigned, Chairman and Trustee of MML Series Investment Fund (the 
"Fund"), does hereby constitute and appoint Stephen L. Kuhn and Peter 
MacDougall, and each of them individually, as his true and lawful attorneys and 
agents.

     Such attorneys and agents shall have full power of substitution and to take
any and all action and execute any and all instruments on the Undersigned's 
behalf as Chairman and/or Trustee of the Fund that said attorneys and agents may
deem necessary or advisable to enable the Fund to comply with the Securities 
Act of 1933, as amended (the "1933 Act"), the Investment Company Act of 1940, as
amended (the "1940 Act"), and any rules, regulations, orders or other 
requirements of the Securities and Exchange Commission (the "Commission") 
thereunder. This power of attorney applies to the registration, under the 1933 
Act and the 1940 Act, of shares of beneficial interest of the Fund to be offered
by the Fund. It specifically authorizes such attorneys and agents to sign the 
Undersigned's name on his behalf as Chairman and/or Trustee to the Registration 
Statements and to any instruments or documents filed or to be filed with the 
Commission under the 1933 Act and the 1940 Act in connection with such 
Registration Statements, including any and all amendments to such statements, 
documents, or instruments.

     The Undersigned hereby ratifies and confirms all that said attorneys and 
agents shall do or cause to be done by virtue hereof.

     IN WITNESS WHEREOF the undersigned has set his hand this 13th day of 
February 1997.

                                            /s/ Gary E. Wendlandt
                                            ----------------------------
                                            Gary E. Wendlandt
                                            Chairman and Trustee

Witness:



/s/ Stephen L. Kuhn
- ----------------------
Stephen L. Kuhn

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 6
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               DEC-31-1996
<INVESTMENTS-AT-COST>                    3,156,282,966
<INVESTMENTS-AT-VALUE>                   4,264,532,486
<RECEIVABLES>                               17,260,703
<ASSETS-OTHER>                                  11,123
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                           4,281,804,312
<PAYABLE-FOR-SECURITIES>                       619,695
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                  158,392,681
<TOTAL-LIABILITIES>                        159,012,376
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                             0
<SHARES-COMMON-STOCK>                                0
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                       25,629
<OVERDISTRIBUTION-NII>                          64,970
<ACCUMULATED-NET-GAINS>                    (1,457,005)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                 1,108,246,175
<NET-ASSETS>                             4,122,791,936
<DIVIDEND-INCOME>                           67,330,927
<INTEREST-INCOME>                           83,077,510
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              14,942,835
<NET-INVESTMENT-INCOME>                    135,465,602
<REALIZED-GAINS-CURRENT>                    90,012,033
<APPREC-INCREASE-CURRENT>                  337,340,132
<NET-CHANGE-FROM-OPS>                      562,817,767
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                  135,221,413
<DISTRIBUTIONS-OF-GAINS>                    90,198,867
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     783,133,661
<ACCUMULATED-NII-PRIOR>                         13,473
<ACCUMULATED-GAINS-PRIOR>                    (786,619)
<OVERDISTRIB-NII-PRIOR>                         79,661
<OVERDIST-NET-GAINS-PRIOR>                     700,894
<GROSS-ADVISORY-FEES>                                0
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                      0
<AVERAGE-NET-ASSETS>                     3,674,890,000
<PER-SHARE-NAV-BEGIN>                                0
<PER-SHARE-NII>                                      0
<PER-SHARE-GAIN-APPREC>                              0
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                                  0
<EXPENSE-RATIO>                                      0
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>


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