Amelia
Rookie
- Banned
- #221
If homosexuality was genetic every single pair of identical twins would be either straight/straight or gay/gay, they aren't. That means that it is not just like skin color, eye color, height, and facial features, all of which are clearly genetic and manifest identically in identical twins.
That does not mean I am saying being homosexual is abnormal, anymore than being a Hindu is abnormal.
I don't think identical twins are as identical as you think they are. Height in particular comes to mind as a trait where variation can be expected.
Again, the notion of genetic predisposition is key. A genetic predisposition doesn't guarantee a trait will be manifest. It's just a contributor which other conditions could trigger or suppress.
Identical twins have identical genes. Height can change as a result of one twin experiencing a childhood illness that affects development, but that would make homosexuality a side affect of a disease. which I am pretty sure is not your position.
It could be the result of a disease. Yet it wouldn't have to be for the general principle to apply. Height can be different based on other things, including diet and physical activity.
Our genes do not guarantee the course of our physical development. Many different things can cause different outcomes. Identical twins can be very different from the womb. And they can be affected differently by the people around them and other things in their environments.
Hormones in the womb could affect the two developing fetuses differently.
In any case, identical twins are not necessarily as identical as you have suggested and genetic predisposition is not black and white.
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