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Posted by duddy   October 10, 2015   3323 views

Scientists have discovered evidence that homosexuality is not a lifestyle choice, but rather is rooted in a person’s biology. While specific genes have not been found, a male twin study reveals that homosexuality may be caused by chemical modifications that alter gene activity. As the fetus develops, certain genes get turned on or off depending the chemicals the fetus is exposed to. These chemicals don't necessarily have to be chemicals ingested or inhaled by the mother, but could be an imbalance in a hormone, such as testosterone. As adults, genes can also activate and deactivated based on our environment. More research is needed, but scientists stress that these findings shouldn’t be used to produce tests for homosexuality or a misguided "cure".

Source: http://www.jstor.org/stable/10.1086/668167#abstract

lifestyle dna genetics
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