From WIKI:
Modern humans and Neanderthals share 99.7% of their DNA
and
1–4% of the DNA of living non-African humans are found by the Max Planck Institute to likely come from Neanderthals, a result confirmed in 2012, and refined to 1.5–2.1% in 2014
What do they mean? If it is similar for 99.7, how it could be that 1.5%-2% is unique genes from Neanderthals? The Africans do not have them, so African different from European in 1.5-2% ? But that's not true.
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