I’m a straight person who does not see any problem with gay marriage. We need less children in the world, not more. Let them. Being gay has a genetic component so it is just part of who some people really are.
The findings may help solve the puzzle of why, if homosexuality is hereditary, it hasn’t already disappeared from the gene pool, since gay people are less likely to reproduce than heterosexuals.
A team of researchers found that some female relatives of gay men tend to have more children than average. The scientists used a computer model to explain how two genes passed on through the maternal line could produce this effect.
In 2004 the researchers studied about 200 Italian families and found that the mothers, maternal aunts and maternal grandmothers of gay men are more fecund, or fruitful, than average. Recently, they tried to explain their findings with a number of genetic models, and found one that fit the bill.
“This is the first time that a model fits all our empirical data,” said Andrea Camperio-Ciani, an evolutionary psychologist at the University of Padova in Italy who led the study. “These genes work in a sexually antagonistic way — that means that when they’re represented in a female, they increase fecundity , and when they’re represented in a male, they decrease fecundity. It’s a trait that benefits one sex at the cost of the other.”
The researchers detail their findings in the June 18 issue of the journal PLoS ONE.
If this scenario turns out to be true, it could help explain the seeming paradox of hereditary homosexuality. Since gay people are less likely to reproduce than heterosexuals, many experts have wondered why, if homosexuality is caused by genetic factors, it wouldn’t have been eliminated from the gene pool already.
But if the same genes create both homosexuality in men and increased fertility in women, then any losses in offspring that come about from the males would be made up for by the females of the family. – livesci