There’s No Scientific Evidence a ‘Gay Gene’ Exists
Publication of the largest-ever study of the roles of genes in homosexual behavior is fanning the debate over whether being gay is due to genes or environment. First reported at a genetics conference in 2018, the study found five genetic variants associated with having a same-sex sexual partner (SN: 10/20/18). But those variants, called SNPs, don’t predict people’s sexual behavior, researchers report in the Aug. 30 Science. “There is no ‘gay gene’ that determines whether someone has same-sex partners,” says Andrea Ganna, a geneticist at the Broad Institute of MIT and Harvard and the University of Helsinki. Family studies have suggested that genetics account […]