Nearly all modern non-African humans have 1 % to 4 % of their DNA derived from Neanderthal DNA , and this finding is consistent with recent studies indicating that the divergence of some human alleles dates to one Ma .
The interpretation of these studies has been questioned .
Nearly all modern non-African humans have 1 % to 4 % of their DNA derived from Neanderthal DNA , and this finding is consistent with recent studies indicating that the divergence of some human alleles dates to one Ma , although the interpretation of these studies has been questioned .