Sexual Preference From A Fertility Gene?

One of the questions in the nature vs. nurture regarding homosexuality is if homosexuality is hereditary, and those in same-sex relationships can’t reproduce, why hasn’t homosexuality disappeared? A new Italian study might explain part of this. According to findings from the University of Padova in Italy, homosexuality in males might be caused by the same genes that increase fertility in females. This would mean that in the same family, if a male inherited this gene, he would be gay, and if a female inherited this gene, she would be more fertile and possibly give birth to more babies than normal, making up for her brother’s lack of offspring and passing on the gene. Now, this conclusion seems to make sense for gay men, but not for lesbians, and the researchers think there’s an entirely different explanation for that. [LiveScience]