Twenty-two years ago, David C. Page went fishing for DNA. Poking randomly at a collection of human DNA fragments in a laboratory gene-mapping experiment, the young medical student happened to pick up a Y-chromosome fragment. "When people ask me how I chose the Y to study," Page deadpans, "the correct answer is 'with a toothpick.'" continued...

David Page

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Reprinted from the HHMI Bulletin, September 2003, pages 20-23. ©2003 Howard Hughes Medical Institute