What do the new ‘gay genes’ tell us about sexual orientation? | New Scientist
Ben Carson: Many prisoners go in straight, come out gay
I work in the field of psychiatry. Because being gay is bad, apparently. That would be classed as a very sinister superpower. This issue has come up again for what is possibly the 12,,,nd time for several reasons. There was a recent study that suggests homosexuality is linked to the X chromosome , so is therefore genetic, ie inherent, not a choice.
What Causes Homosexuality
Homosexuality can refer to both attraction or sexual behavior between people of the same sex, or to a sexual orientation. When describing the latter, it refers to enduring sexual and romantic attraction towards those of the same sex, but not necessarily to sexual behavior. Most scientist today agree that sexual orientation is most likely the result of a complex interaction of environmental, cognitive and biological factors. Although homosexuality does not appear to be adaptive from an evolutionary standpoint, because homosexual sex does not produce children, there is evidence of its existence through human history. Although a number of biological factors have been considered by scientists, such as prenatal hormones, chromosomes, polygenetic effects, brain structure and viral influences, no scientific consensus exists as to how biology influences sexual orientation.
Between 2 and 11 percent of human adults report experiencing some homosexual feelings, though the figure varies widely depending on the survey. Homosexuality exists across cultures and even throughout the animal kingdom, as the authors of a mammoth new review paper on homosexuality write. Between 6 and 10 percent of rams prefer to mount other rams, not ewes.