Neanderthal-DNA found in 65% of modern Asians

The Neanderthal-genome is published, which makes it possible to do a wide range of research on comparative evolution.Researchers prooved the interbreeding between humans and Neanderthals already. Now, compartive tests show that 65% of modern Asians share a DNA-chromosome with Neanderthals. The chromosome is related to UV-light adaptation. This particular DNA-chromosome however left the DNA-genome during the exodus of modern humans from Africa. How this Neanderthal-DNA returned is unclear, but the cause could be the interbreeding between Neanderthals and humans.