Neanderthal Y-chromosome genes disappeared from the genome of modern humans long ago, suggests a new study published this week in the American Journal of Human Genetics. Reconstruction of a Neanderthal. Image credit: Neanderthal Museum. The Y chromosome is one of two human sex chromosomes. Unlike the X chromosome, the Y chromosome is passed exclusively from father to son. “This is the first study to examine a Neanderthal Y chromosome,” said lead...
