Thursday, September 02, 2004

It Really Was Somebody Else Who Looks Exactly Like Me, Officer

DNA evidence has revolutionized criminal law, allowing authorities to place a suspect at the scene of a crime with just a stray strand of hair or drop of blood. Everybody's DNA profile is unique and the odds are overwhelmingly slim that two different people would leave behind the same genetic info. Except for twins, of course. As this article discusses, that situation comes up more often than you would think. The test now is to dive deep into the genetic code of the twins and see if there is anyway to point the finger at one, rather than both, as the perpetrator.

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