Karen Young Kreeger | Feb 3, 2002 | 6 min read
Editor's Note: This is the third article in a series on sex-based differences in the biology of males and females. Future articles in the series will cover sex-based differences in autoimmunity, drug metabolism, and life expectancy. While responses to "What's the difference between men and women?" might evoke answers about reproductive plumbing and hormones, researchers are unearthing some subtle, genomic reasons for the differences. So far, the linchpins to finding these genomic variations seem