southern wrote:
If siblings are homozygous twins and one is gay,the other will become gay 100% even if they are raised in different families,in different countries with no connection to each other.
Actually, thats bullsh. I saw a documentary studying sexuality where there were 2 identical twins, one was straight and the other was gay so I don't know where you're getting your so-called facts from but they are wrong.
'Religious conservatives often point to studies of identical twins who were separated at birth and raised independently. If one is gay, then the other twin is found to be gay only about 55% of the time. They reason that: since identical twins have the same genetic structure, then if homosexual orientation were determined by genes, 100% of the other twins would be gay. Thus they conclude that homosexual orientation is not genetically caused.'
-http://www.religioustolerance.org/hom_caus3.htm