How about this one?

One paragraph I find very significant

While genes do contribute to sexual orientation, other multiple factors play a greater role, perhaps including the levels of hormones a baby is exposed to in the womb. "Sexual orientation has nothing to do with choice," said Bailey. "We found evidence for two sets [of genes] that affect whether a man is gay or straight. But it is not completely determinative; there are certainly other environmental factors involved."

To make it simple for those who need it, genetics are involved but there is a lot more to it. But please note Sexual orientation has nothing to do with choice

DtG