0000950129-03-002588 10-Q 3 20030331 20030509 LEXICON GENETICS INC/TX 0001062822 2835 760474169 1231 10-Q 34 000-30111 03690485 4000 RESEARCH FOREST DRIVE 281-364-0100 THE WOODLANDS TX 77381 2813640100 4000 RESEARCH FOREST DR THE WOODLANDS TX 77381 10-Q 1 h05669e10vq.txt LEXICON GENETICS INCORPORATED - DATED 3/31/2003 EX-10.1 3 h05669exv10w1.txt CONSULTING LETTER AGREEMENT EX-99.1 4 h05669exv99w1.txt CERTIFICATION OF CEO AND CFO