Genetic modifications that respond to hormones in the womb may delineate the development of homosexuality. From a strictly Darwinian viewpoint, homosexuality shouldn't still be around. It isn't the best way to pass along one's genes, and to complicate the picture additionally, no "gay genes" have equivalent been identified.
According to a newly released hypothesis, the simplification may not lie in DNA itself. Instead, as an embryo develops, sex-related genes are turned on and off in retort to fluctuating levels of hormones in the womb, produced nigh both mother and child. That tug of war benefits the unborn child, keeping male or female development on a never-ending course even amid spikes in hormones.
But if these soi-disant epigenetic changes persist once the child is born and has children of its own, some of those offspring may be homosexual, the study proposes.
From an evolutionary point of view, homosexuality is rather difficult to explain.
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In present-day Thailand, some men will say: According to conventional wisdom, an embryo becomes a boy when a gene on the Y chromosome triggers the development of testes, which then begin to produce male sex hormones, including testosterone, at about the 8th week of gestation. According to a newly released hypothesis, the explanation may not lie in DNA itself. Love matters more than genes for children with same-sex parents.
Yes, study suggests, but critics are doubtful By Alex Verkhivker Nov. Let us ask what homosexuals themselves think about their sexual orientation, how they interpret the feelings usually becoming manifest at the time of hormonal puberty that the same sex exerts an enormous fascination much in the way the other sex does in the case of a heterosexual development.
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Is Homosexuality in Your Genes?
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