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That provides a limited view of sexuality, because a single encounter doesn't define a person's sexuality.
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The scientists looked at genetic variants in people who said they had had at least one sex partner of the same sex and compared those to variants in people who said they had not had same-sex encounters. Shots - Health News Human Genomics Research Has A Diversity Problem Scientists paired that data with information from tens of thousands of people of European ancestry who volunteered to answer sex-related questions for the U.S. The latest research, published in Science, involves nearly half a million middle-aged people from Britain who volunteered to donate blood samples and answer questionnaires for a project called UK Biobank. Previous quests for genes linked to sexuality have been unconvincing. Studies find that siblings are more likely to share their sexual orientation, which suggests a genetic link. The research is the latest effort in a decades-long quest to understand the inherited component of sexuality. "It doesn't explain a lot, but it's at least a first step," says Melinda Mills, a sociologist at Oxford University who was not involved in the study. The study broadly reinforces the observation that both biology and a person's environment influence sexuality, but the results reveal very little about that biology. Researchers looked for genetic variants linked to sexual behavior in new genetic research that analyzed DNA from donated blood samples from nearly half a million middle-aged people from Britain who participated in a project called UK Biobank.Ī huge new study finds a faint hint of genetic variation that may be linked to same-sex behavior.