Epigenetic theories of homosexuality concern the studies of changes in gene expression or cellular phenotype caused by mechanisms other than changes in the underlying DNA sequence , and their role in the development of homosexuality. However, epigenetic theories tangle a multiplicity of initiating causes and of resulting final effects and will never lead to a single cause or a single result.
Sexual orientation is one of the largest sex differences in humans. The vast majority of the population is heterosexual, that is, they are attracted to members of the opposite sex.
Beverley Kramer was a member of Academy of Science South Africa panel that undertook the study which form the basis of the Diversity in Human Sexuality report. Republish our articles for free, online or in print, under Creative Commons licence.
Another day, another truly execrable epigenetic report. Epigenetics is the study of chemical modifications to our genetic material which influence how genes are expressed.
A pride march in Belgrade last month. Indeed, over the past 2 decades, researchers have turned up considerable evidence that homosexuality isn't a lifestyle choice, but is rooted in a person's biology and at least in part determined by genetics.
Researchers looking for a genetic signature of homosexuality have been barking up the wrong tree, according to a trio of researchers in the United States and Sweden. Instead, the scientists posit, epigenetic influences acting on androgen signaling in the brain may underlie sexual orientation.
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