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Is being homosexual genetic
The Pride parade in Brighton, UK. The findings, which are published on 29 August in Science and based on the genomes of nearly , people, shore up the results of earlier, smaller studies and confirm the suspicions of many scientists: while sexual preferences have a genetic component, no single gene has a large effect on sexual behaviours. But she cautions that the results may not be representative of the overall population — a limitation that the study authors acknowledge. The people who contribute their genetic and health information to those databases are predominantly of European ancestry and are on the older side. The study authors also point out that they followed convention for genetic analyses by dropping from their study people whose biological sex and self-identified gender did not match. Research from the s 2 showed that identical twins are more likely to share a sexual orientation than are fraternal twins or adopted siblings.
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What do the new ‘gay genes’ tell us about sexual orientation?
Massive Study Finds No Single Genetic Cause of Same-Sex Sexual Behavior - Scientific American
How do genes influence our sexuality? The question has long been fraught with controversy. An ambitious new study — the largest ever to analyze the genetics of same-sex sexual behavior — found that genetics does play a role, responsible for perhaps a third of the influence on whether someone has same-sex sex. The study of nearly half a million people, funded by the National Institutes of Health and other agencies, found differences in the genetic details of same-sex behavior in men and women. The research also suggests the genetics of same-sex sexual behavior shares some correlation with genes involved in some mental health issues and personality traits — although the authors said that overlap could simply reflect the stress of enduring societal prejudice. Even before its publication Thursday in the journal Science, the study has generated debate and concern, including within the renowned Broad Institute itself. Several scientists who are part of the L.
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The 'Gay Gene' Is A Myth But Being Gay Is 'Natural,' Say Scientists
We have known for decades that sexual orientation is partly heritable in men, thanks to studies of families in which some people are straight and some people are gay. Both findings were confirmed in a study of gay and straight brothers in For the first time, individual genes have been identified that may influence how sexual orientation develops in boys and men, both in the womb and during life. This enabled them to home in on two genes whose variants seem to be linked to sexual orientation.
Few aspects of human biology are as complex—or politically fraught—as sexual orientation. Now, a new study claims to dispel the notion that a single gene or handful of genes make a person prone to same-sex behavior. The analysis, which examined the genomes of nearly half a million men and women, found that although genetics are certainly involved in who people choose to have sex with, there are no specific genetic predictors.