Didn't that just prove my point? The genes are the same. Something has to happen through the process of living that changes the orientation of one twin but not the other. There has been, to the best of my knowledge, no proof of a "gay" gene. As far as differing physical features are concerned, fingerprints are formed by the environment of the womb, not DNA. Also, the shapes of ears, faces, hands ect. are heavily influenced by individual conditions of the womb as the DNA grows and expresses itself. If identical twins can have different fingerprints, then they can also have different sexual orientations. The aspects of the womb that give twins slightly different hand shapes can also give them different sexual orientations. This is why most identical twins are the same sexual orientation. Identical twins always look the same, but genes can cause some of their non-physical characterisitics to be different. How would you explain people who are attracted to the same sex before even knowing what sex is? This can't be a learned behavior because the people don't even understand what the sexual urges they feel are. Even if homosexuality was influenced by enviornmental factors, that wouldn't make it wrong. Sexuality is definitely not a conscious choice on a person's part. If unknown enviornmental factors caused someone to be gay, then it isn't his fault and he can't eliminate the feelings.