Science News Roundup: No 'gay gene', but study finds genetic links to sexual behavior

Following is a summary of current science news briefs.

No 'gay gene', but study finds genetic links to sexual behavior

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. The research, which analyzed data on DNA and sexual experiences from almost half a million people, found there are thousands of genetic variants linked to same-sex sexual behavior, most with very small effects.

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