No single ‘gay gene’ determines same-sex sexual behavior

By Tina Hesman Saey. Originally published on Live Science. Nancy Cox, a human geneticist at Vanderbilt University who was not involved in the study, praised the scientists for considering so many of the complexities inherent in the subject of sexual behavior. Ultimately, they found five locations on the human genome that were common enough to be "significantly" associated with same-sex behaviors.

The rest of the 32 percent might involve genetic effects they could not measure, they said.

One concern is that evidence that genes influence same-sex behavior could cause anti-gay activists to call for gene editing or embryo selection, even if that would be technically impossible. Sathirapongsasuti said that, as a gay teenager, he began Googling the possible causes of homosexuality and stumbled across the theory of a single "gay gene" -- on the marker Xq28 -- which is passed down from mothers on the X chromosome.

So, we know that smell has a strong tie to sexual attractionbut its links to sexual behaviors are not clear. Dean Hamer, a former National Institutes of Health scientist who led the first high-profile study identifying a genetic link No single ‘gay gene’ determines same-sex sexual behavior being gay insaid he was happy to see such a large research effort.

When considering just those five statistically significant SNPs, that number drops to much No single ‘gay gene’ determines same-sex sexual behavior than 1 percent. Rahman points to what he sees as inconsistencies in the data and possible bias in the people who volunteered to participate in the study.

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Оторвались ребята No single ‘gay gene’ determines same-sex sexual behavior

But these studies all had very small sample sizes and most focused on men, says Mills. They are not definitive "gay genes. A troubled ex-USC football star died at Sign up for the Science Times newsletter. We know there are non-genetic influences as well, but we don't understand these well, and our study does not say anything about them.

Finding clear and verifiable patterns in genetic data requires a huge sample, and the scientists knew where to find it.

  • By Tina Hesman Saey. August 29, at pm.
  • A new study that analyzed the DNA of nearly half a million people has found that, while genetic differences play a significant role in sexual behavior, there is no single gene responsible.
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The scientists detailed their findings in the Aug. The small contribution of genetics to sexual behavior is in line with genetic contributions to other behaviors, such as level of education attainment. When the researchers looked at the overall genetic similarity of individuals who had had a same-sex experience, genetics seemed to account for between 8 and 25 percent of the behavior.

Another analysis in the paper, which did not focus on DNA but on familial relationships between , pairs of individuals, suggested that a slightly larger share of the variation in same-sex behavior,

No single ‘gay gene’ determines same-sex sexual behavior

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  • Aug 29,  · There is no single “gay gene,” new research concludes. Instead, sexual orientation is like most other human traits, determined by a complex mix of genetic and environmental influences. Aug 29,  · There's no such thing as a single "gay gene" that drives a person's sexual behavior, concludes the largest genetic study ever conducted on the issue. Instead, a person's attraction to those of the.
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  • Genetic variants associated with same-sex sexual behaviour can't be sexual preferences have a genetic component, no single gene has a. Genetic variants can't meaningfully predict same-sex sexual behavior; rather, a combination of small genetic factors and environment "There is no gay gene that determines whether someone has same-sex partners," lead.
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  • Massive Study Finds No Single Genetic Cause of Same-Sex Sexual Behavior A clear genetic link would suggest that gay people are “born this way,” gene or handful of genes make a person prone to same-sex behavior. The largest study of same-sex sexual behavior finds the genetics are complicated​, 'Gay Gene'Many Genes Influence Same-Sex Sexuality, Not a Single 'Gay Gene' . Does Who You Are at 7 Determine Who You Are at 63?
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  • Aug 30,  · There’s no single “gay gene” that determines sexual behavior, research shows a clear link to same-sex sexual behavior — two in both men and women, two found only in men and one found. Aug 29,  · The largest study of its kind, released on Aug. 29, , found new evidence that genes contribute to same-sex sexual behavior, echoing research that says there is no single “gay gene.” (AP.
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  • There's no one “gay gene,” but many genetic, environmental, social and Publication of the largest-ever study of the roles of genes in homosexual behavior is genetic variants associated with having a same-sex sexual partner “There is no 'gay gene' that determines whether someone has same-sex. Instead, sexual orientation is like most other human traits, No single 'gay gene' determines same-sex sexual behavior, DNA analysis finds.
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  • Instead, the predisposition to same-sex sexual behavior appeared influenced by However, the finding that there's no single gay gene does not mean that it must therefore be totally genetically determined," Zietsch added. "Genetics is less than half the story for sexual behavior, but it's still a contributing factor." Unpacks the Complex Genetic Underpinnings of Same-Sex Behavior scientists have determined that there is no single "gay gene.
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