In germ cells found in indelible epigenetic modifications

In the DNA of germ cells detected methyl modifications that remain in place even in the complete erasure other such modifications. Probably, these methylation-resistant foci responsible for the distribution of epigenetic code offspring.It is known that stress, smoking, endured disease, famine impose on our DNA its mark. Imprint literally: we are talking about epigenetic modifications, when the sequence of the DNA is the same, and the activity of genes can change radically. (In fairness it should be noted that such modifications may occur not only at the DNA, but also to the histones - proteins Read more [...]
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Scientists: genetic failure as the cause of homosexuality

Geneticists have suggested that the development of homosexuality due to a violation of human DNA in a package, that is the preservation of the embryo epigenetic markers, which he inherited from the parent of the opposite sex. Scientists have presented a new hypothesis in a paper published in the journal The Quarterly Review of Biology. She was nominated member of the University of Tennessee, Sergey Gavrilets, together with its counterparts in California and the University of Uppsala. Until now it was thought that preceded the emergence of homosexuality genetic mutations, however, all attempts Read more [...]
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Scientists have a new hypothesis about the nature of homosexuality

12/12/2012Geneticists have suggested that the development of homosexuality is associated with disturbances in the packaging of DNA, when the embryo retains epigenetic marks, which he acquired from the parent of the opposite sex. Article outlining the hypothesis published in The Quarterly Review of Biology. Its advanced alumni Sergey Gavrilets, of the University of Tennessee, along with his colleagues at the California and the University of Uppsala.For a long time it was thought that the cause of homosexuality is a genetic mutation, but despite the efforts of scientists, "homosexuality Read more [...]
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