[Darksheare]

Uh, no.
There has been gene sequencing, splicing, spindling, etc and there has been to date absolutely zero biological link for homosexuality.
Logically any such gene if it ever existed would have died out as homosexuals cannot procreate among themselves.
Two legs cannot produce, two holes cannot produce.

So please, show or tell us why you believe there is somehow a biological cause of homosexuality?

[Mrs. Don-o]

"Physiological" cause doesn't necessarily mean "genetic" cause.

Xeno-estrogens in the environment are known to cause impaired or ambivalent sexual development in many vertebrates.

Most of our watersheds are contaminated with estrogens and estradiols. Plus, according to the American Academy of Pediatrics, soy-based (infant) formula is now 25 percent of the market in the United States. Soy is known to have estrogenic effects.

This does not mean that those 25% of babies + God-knows how many kids exposed to estrogen-contaminated water, are going to turn out gay, transsexual or gender-confused.

We just don't know how many will.

As a general observation, as the use of hormone-based birth control and soy-based infant formula has risen, so has general gender confusion.

We all know correlation does not equal causation. But if we never research it, we'll never know if there IS causation.

I fear the results of our incuriosity may become catastrophic.

[Yaelle]

Genes don’t cause every disorder or illness. When a baby is being formed, the conditions in the uterus definitely have an effect on development. Almost as much as the genes do. The study of epigenetics is all over this. The most easy to see and famous of the classic epigenetics studies is the one with the ponies and the horses. Pony embryos were implanted into the uteri of horses. The resulting ponies, 100% genetic ponies, were significantly LARGER than ponies.

So Darwin was correct but so was the much maligned Lamarck.

A lot of these gender or sexuality problems seem to stem from changes in the uterus. One study shows that homosexual men tend to have had older genetic brothers. Sometimes multiple. If someone has a few sons, the later ones would tend to be the gay ones.