There is no such thing as a gay gene B&M Noskowski/iStock / Getty Images Plus
It’s time to throw out the idea of a “gay gene”. According to the largest ever genetic study of sexual behaviour, there are probably a large number of genes that collectively influence sexuality, each with tiny effects.
Previous studies have identified individual genes that may influence how sexual orientation develops in boys and men. But studies like this have always been relatively small. Most human traits seem to be influenced by hundreds or thousands of genes, each with a small effect. So…
