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Thursday, December 11, 2014

DNA affected by previous partners

When a woman breaks up with a man, she usually wants every remnant of him removed from her life. A new study suggests that, try as she might, there may be one last piece of him that she’s stuck with for good: his DNA. A study from Australia has managed to prove that fly offspring are able to resemble a mother’s previous sexual partner, even when conceived with their father’s sperm.
The idea of telegony, or previous mates influencing a woman’s offspring, has been around for centuries. It was first proposed by the Greek philosopher Aristotle and was accepted as science until the early 1900s when it was disproved and replaced by more modern genetic theory, according to the study's press release. Unfortunately, the theory was largely used as a fear tactic to prevent women from copulating with different races or lower classes, but the study suggests the theory may have some elements of truth — for flies, at least.http://www.medicaldaily.com/dna-sperm-ex-partners-lingers-female-flies-and-influences-genetics-her-offspring-305934

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