Interestingly, this brain region contains the hypothalamus, which was identified in as differing in size between gay and straight men. All responses to questions were coded by two members of the research team. Homosexuality is viewed by many as a social problem. Ganna did not discuss those possibilities from the podium. In a first, magnetic fields have been spotted between two galaxy clusters.
Along with the study of genes and chromosomes the environment in the womb of the mother, as well as other prenatal factors, have been studied to understand how it can affect sexual orientation.
Hastings Center Report. Tina Hesman Saey. A number of twin studies have attempted to compare the relative importance of genetics and environment in the determination of sexual orientation.
For example, 17 individuals gave only genetic explanations.