I believe they were talking about mitochondrial DNA, and found no evidence of interbreeding, Studies of other parts of the DNA show substantial evidence of interbreeding. I think mitochondrial has some unique properties with respect to ancestry that should be considered when analyzing ancestral interbreeding.
BTW, this is all new stuff. Recent advances in obtaining good DNA from old bones are making this possible.
Mitochondrial DNA is passed directly from mother to child, with no contribution from the father's DNA. The DNA in the nucleus is half from the father, half from the mother. If no Neanderthal mitochondrial DNA is found, that indicates that any inter-racial mating involved Neanderthal men mating CroMag women (or at least, mating which resulted in surviving progeny).
I believe they were talking about mitochondrial DNA, and found no evidence of interbreeding, Studies of other parts of the DNA show substantial evidence of interbreeding. I think mitochondrial has some unique properties with respect to ancestry that should be considered when analyzing ancestral interbreeding.
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I think that means the neanderthal males bred with the homo sapien females since the mitochondrial DNA is passed through the females. (I may have this backwards.)
LOL, yeah, well, so do I. Like the fact that it has its own DNA, for starters, indicating that it it started out as a separate entitiy that somehow became an internal symbiote with another cell - something basically impossible, and found nowhere else in nature.