A large scientific study into the biological basis of sexual behavior has confir...
LONDON - A large scientific study into the biological basis of sexual behavior has confirmed there is no single “gay gene” but that a complex mix of genetics and environment affects whether a person has same-sex sexual partners.
Five of the genetic markers were “significantly” associated with same-sex behavior, the researchers said, but even these are far from being predictive of a person’s sexual preferences. This means that non-genetic factors - such as environment, upbringing, personality, nurture - are far more significant in influencing a person’s choice of sexual partner, just as with most other personality, behavioral and physical human traits, the researchers said.
“Previous studies were small and underpowered,” Ganna said. “So we decided to form a large international consortium and collected data for 500,000 people, is approximately 100 times bigger than previous studies on this topic.”
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