#x-chromosome-genetics

#x-chromosome-genetics

Neanderthal X chromosomes are largely absent from modern humans while modern human X chromosomes are overrepresented in Neanderthal genomes, suggesting selective mating preferences favoring Neanderthal males with modern human females.

Ancient human and Neanderthal interbreeding primarily involved male Neanderthals and female homo sapiens, evidenced by rare Neanderthal DNA on the X chromosome in modern humans.