ReDiscover: The Genetics of Sexuality Broadens

Experts continue to hunt for variations linked to homosexuality.

ReDi
In 1993, geneticist Dean Hamer co-published a study claiming male homosexuality was at least partially genetic, and he identified the chromosome segment where one of the relevant genes was located. It was just some of the research on the controversial topic that Discover unpacked in a June 2007 feature article, “Born Gay?” Since then, researchers from Northwestern University and NorthShore University HealthSystem Research Institute in Evanston, Ill., have replicated Hamer’s res...
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