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At the genetic level chimpanzees are almost indistinguishable from humans, so how did the formation of human chromosome 2 lead to our divergence from our primate relatives?
Geneticist Aoife McLysaght heads to Dublin Zoo to explain more...
Click here for more information on the subject: http://www.nature.com/scitable/topicpage/hybrid-incompatibility-and-speciation-820
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