After reading the nurture vs. nature section of the book, I couldn't help but think if homosexuality could be related to either one. I personally feel that homosexuality is not inherited through genes but this article has got me thinking a little. http://www.physorg.com/news84720662.html The article alluded to fruit fly gene alterations that eventually led to homosexuality. I looked up this study and found a good article here http://www.timesonline.co.uk/tol/news/science/article3025835.ece about how scientists have found a mutation gene known as "gender-blind" or GB. This mutation, which they've found a way of turning on and off, can make flies bisexual! This came as a surprise to me because I have never thought that your genes could play a role in your sexual orientation. Though the implications cannot be directly inferred to humans, it is interesting enough to see that gene mutations in fruit flies can give such information.
I also read an article http://news.softpedia.com/news/Homosexual-by-Birth-41918.shtml which was a bit clearer on the different genes and variables/trends that have been associated with homosexuality. They gave an example of how homosexuality in men increases with the "number of biological older brothers he has, even when he does not grow up with his older male siblings." I found this extremely interesting and it sort of ties into the nature part of homosexuality.The overall message that I got from all three of the articles was that though there are common factors in genes and homosexuality, the larger part of it was up to how the individual grew up, nurture. I also agree with the last article that "it is too early to decide which of our models is most feasible." So what are your opinions about homosexuality and its relations with nature vs. nurture?