While this remains true – all humans share more than 99 per cent of their DNA – the new work indicates that variations tend to differ between races, and that these became more, not less, pronounced.And this is the coolest thing ever:
“Human races are evolving away from each other,” said Henry Harpending, Professor of Anthropology at the University of Utah, who led the study.
“Genes are evolving fast in Europe, Asia and Africa, but almost all of these are unique to their continent of origin. We are getting less alike, not merging into a single, mixed humanity..."
Disease-resistance genes also differ. About 10 per cent of Europeans have CCR5, which confers some resistance to HIV, and which may have evolved to give resistance to smallpox.Neato.