>>12206286>I don't know of any twin study that found every gay person with a twin has a gay twin. They usually find percentages of between 30-60%, which is highThis is any complex gene association ever
That to me proves it is absolutely genetically linked
Most genetic diseases on earth are complex diseases that have a lower twin-study rate than homosexuality, and we absolutely call them genetically linked diseases, so we would absolutely call homosexuality as genetically linked.
Quite a few animals other than humans display homosexuality (deer, etc) where males will only fuck other males and absolutely refuse females
