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The largest study of its kind found new evidence that genes contribute to same-sex sexual behavior. The genome-wide research on DNA from nearly half a million US and UK adults identified five genetic variants not previously linked with gay or lesbian sexuality. The variants were more common in people who reported having had a same-sex sexual partner, including people whose partners were exclusively of the same sex and those who mostly reported heterosexual behavior.
The researchers said thousands more genetic variants likely are involved and interact with factors that aren’t inherited—but that none of them cause same-sex behavior or can predict whether someone will be gay. The study’s authors say the research “provides the clearest glimpse yet into the genetic underpinnings of same-sex sexual behavior.” They add, “We also found that it’s effectively impossible to predict an individual’s sexual behavior from their genome. Genetics is less than half of this story for sexual behavior but it’s still a very important contributing factor.”
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Check out more about a study showing genetic variants in same-sex behavior: https://nypost.com/2019/08/30/
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