Mark D. Gessler

MARK D. GESSLER has served as Chief Executive Officer of Gene Logic Inc.
since June 2000 and as President since January 1999. Mr. Gessler has
also served as a Director since March 2000 and Chairman of the Board of
Directors since April 2001. From January 1999 through June 2000, Mr.
Gessler served as the company Chief Operating Officer. From June 1996 to
October 1999, Mr. Gessler served as its Chief Financial Officer and,
from June 1996 to January 1999, was its Senior Vice President, Corporate
Development. From February 1993 to June 1996, Mr. Gessler was with
GeneMedicine, Inc., a gene therapy company, most recently as Vice
President, Corporate Development. Mr. Gessler holds an MBA from the
University of Tennessee.