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EXHIBIT 23
CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS
We consent to the incorporation by reference in the Registration Statement (Form
S-8) pertaining to the Hyseq, Inc. Employee Stock Purchase Plan of our report
dated February 2, 2000, with respect to the consolidated financial statements of
Hyseq, Inc. for the year ended December 31, 1999 included in its Annual Report
(Form 10-K) filed with the Securities and Exchange Commission.
/s/ ERNST & YOUNG LLP
Palo Alto, California
June 9, 2000
