Time.com currently has an article (actually it’s a series of 5 short segments that you have to click through) that explains the basic principles behind the relatively new scientific field of epigenetics. Epigenetics shows that a person’s genetic makeup does not determine their characteristics alone, but instead that there is effectively a process in which certain parts of the DNA are switched on or off in each person. Really fascinating stuff.
Although it is not mentioned anywhere in this article, epigenetics is also the latest and most promising theory about what determines a person’s sexuality. The theory goes that a given set of DNA (perhaps all sets of DNA) has the ability to make the individual to which it belongs both straight and gay. It is the hormones and other chemicals and interactions that take place during fetal development, along with a possible but less certain effect from family…
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