Identity Crisis (rebroadcast)
Big Picture Science
00:00
Is There a Dana in Your DNA?
Since the human genome was sequenced, scientists are discovering how the double helix expresses itself. We've identified strange cases when people have two sets of dana. These individuals are referred to as chimeras well. What does this mean for identity? If you are your d and a, who are you if your body has two sets of thedouble helix? And which set of instructions does the body follow? Science journalist karl zimmer explores these questions in his book, She has her mother's laugh. The powers, perversions and potential of heredity.
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