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DNA study: Why Neanderthals, modern humans are so different

from Reuters via The Huffington Post

How can creatures as different in body and mind as present-day humans and their extinct Neanderthal cousins be 99.84 percent identical genetically? Four years after scientists discovered that the two species' genomes differ by a fraction of a percent, geneticists said they have an explanation: the cellular equivalent of on/off switches that determine whether DNA is activated or not. more

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