> but it does tend to undermine the idea that homosexuality is biological in origin. Not genetic and not biological are two different things. E.g. the differen

> but it does tend to undermine the idea that homosexuality is biological in origin. Not genetic and not biological are two different things. E.g. the differentiator might be hormonal influence during the fetal stage. See https://en.wikipedia.org/wiki/Epigenetics https://en.wikipedia.org/wiki/Epigenetics for a long list of things other than DNA that can affect how organisms develop.