August 31, 2019 | From Scientific American
A new, massive study of whether genetic factors contribute to same-sex behavior just reported its results. Media outlets are reporting on this in various ways, but Scientific American is a fairly mainstream, unbiased source and this is what they published:
“Analysis of half a million people suggests genetics may have a limited contribution to 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. Yet some researchers question whether the analysis, which looked at genes associated with sexual activity rather than attraction, can draw any real conclusions about sexual orientation. . . .
Despite the associations, the authors say that the genetic similarities still cannot show whether a given individual is gay. “It’s the end of the ’gay gene,’” says Eric Vilain, a geneticist at Children’s National Health System in Washington, D.C., who was not involved in the study.”
(Excerpt from Scientific American.)