The Boston Globe profiles Diana Bianchi, a pediatrics researcher, who is writing a guide to the history of genetics and genomics. She's traveled to the Abbey where Gregor Mendel minded his sweet pea plants, had a beer at the pub in Cambridge where James Watson and Francis Crick went, and to Honolulu where the Cohen-Boyer experiment took place. Her own ascent to work on maternal microchimerism is just as interesting.