Genetics of Sexuality
What role do genes play in shaping same-sex attraction and behavior? Scientists have long been intrigued by this question, with the search for a "gay gene" driving a number of studies over the past few decades. Now, a massive study with nearly 1/2 million participants has laid to rest the notion that a single gene could determine whether someone is gay.
That doesn't mean that same-sex attraction and behavior aren't biologically influenced. Dr. Brendan Zietsch, a geneticist at the University of Queensland in Australia and the study's co-author, explains, "We find that there are many, many genes that predispose one to same-sex sexual behavior. Each of them individually has a very small effect, but together they have a substantial effect (Choi, n.d.)."
There is much more research yet to be done, but scientists have a clearer picture than ever before of how genetics influences a predisposition toward same-sex attraction and behavior.
Read about the study's findings in this short but informative article from LiveScience.
Want to learn more? Check out this website created by the scientists who conducted the study.
Choi, Charles Q. (n.d.). The 'Gay Gene' is a Total Myth, Massive Study Concludes. LiveScience. https://www.livescience.com/no-single-gene-makes-someone-gay.html
Genetics of Sexual Behavior. https://geneticsexbehavior.info/