James Watson and Craig Venter might both be Caucasian men, but according to their genes, Watson would metabolize drugs differently than Venter, writes a group led by Venter in Clinical Pharmacology and Therapeutics. The group analyzed six drug-metabolizing genes, including the CYP genes, and found that Venter is an extensive metabolizer and Watson is an intermediate metabolizer with an allele that is rare in Caucasians.