February 27, 2013

Can DNA Test Solve France's Twin Rape Case?

Claire Levenson, Popular Science

AP Photo

A pair of identical twins is currently being detained in the French city of Marseille for six rapes committed in the past six months. Victims have identified the twins’ face, and DNA evidence from one of the crime scenes confirmed that at least one of them is guilty. But because the twins, identified only as Yohan and Elwin, share almost the same DNA, prosecutors say they have no way of determining which brother is the rapist, or if they were both involved. Shouldn't science be able to solve this kind of mystery?

Theoretically, yes.

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TAGGED: Twins, DNA Test, SNPs, Copy Number Variants