colinian Posted September 17, 2019 Report Share Posted September 17, 2019 There is an article in the August 30, 2019 issue of Science titled "How do genes affect same-sex behavior?" The summary of the article reads: "Studies have indicated that same-sex orientation and behavior has a genetic basis and runs in families, yet specific genetic variants have not been isolated (1). Evidence that sexual orientation has a biological component could shape acceptance and legal protection: 4 to 10% of individuals report ever engaging in same-sex behavior in the United States, so this could affect a sizeable proportion of the population (2). On page 882 of this issue, Ganna et al. (3) report the largest study to date, comprising almost half a million individuals in the United Kingdom and United States, identifying genetic variants associated with same-sex sexual behavior. They provide evidence that genetic variation accounts for a small fraction of same-sex sexual behavior and uncover a relationship to the regulation of the sex hormones testosterone and estrogen as well as sex-specific differences. They also reveal complexity of human sexuality." An AAAS membership, or purchase of this single issue, or digital access to the article is required to read the full-text article; go here for more information. Science may be available to read at your local library or university. Colin Link to comment
Bruin Fisher Posted September 19, 2019 Report Share Posted September 19, 2019 This is very interesting, Colin. Reinforces my view that there's still much for the human species to learn about itself. Link to comment
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