Mills said, two of the five variants the team found were discovered only in males No single gay gene one was discovered only in females. Two of these genetic markers sit close to genes linked to sex hormones and to smell—both factors that may play a No single gay gene in sexual attraction.
Another fear is that evidence that genes play only a partial role could embolden people who insist being gay is a choice and who advocate tactics like conversion therapy. My Science Shop Elements Flashcards. The analysis also showed different genetics in play for women and men.
Sign Up. In a finding that could be especially sensitive, the researchers found that whether someone ever engaged in same-sex sexual No single gay gene showed genetic correlations with mental health issues, like major depressive disorder or schizophrenia, and with traits like risk-taking, cannabis use, openness to experience and loneliness.
Archive Current edition Subscribe. The study will not be the last word on the vexing question of what causes homosexuality, however. No individual gene alone makes a person gay, No single gay gene or bisexual ; instead, thousands of genes likely influence sexual orientation, a massive new study of the genomes of nearly half a million people suggests.
Two of these genetic markers sit close to genes linked to sex hormones and to smell—both factors that may play a role in sexual attraction. X Account Login Forgot your password?
Two No single gay gene these genetic markers sit close to genes linked to sex hormones No single gay gene to smell—both factors that may play a role in sexual attraction. The question has long been fraught with controversy. In the largest genetic study of sexual orientation to date, scientists studied a group of aboutvolunteers in the United Kingdom and the United States who reported on whether they had ever engaged in same-sex sexual behavior.
Biobank, who answered extensive health and behavior questions between andwhen they were between the ages of 40 and
Why girls can be boyish but boys can't be girlish. His study, which analysed the genomes of 40 pairs of gay brothers, looked exclusively at people who identified as homosexual. In a way, the range of opinions by scientists who also identify as L. The study will not be the last word on the vexing question of what causes homosexuality, however.
The authors say that they did see links between sexual orientation and sexual activity, but concede that the genetic links do not predict orientation. Other studies have linked sexual orientation with environmental factors such as hormone exposure before birth and having older brothers.