Neanderthal-Human Mating Bias: X Chromosome Clues

0:00Here's more Adelaide News for February 26th. Scientists have found genetic clues that ancient hookups between Neanderthals and modern humans mostly happen between male Neanderthals and female humans. This lopsided pattern explains why Neanderthal DNA is scarce on the human X chromosome which women carry two copies of. Tens of thousands of years ago, modern humans left Africa and entered Neanderthal turf in Europe and Asia. The groups mingled and interbred, leaving traces of Neanderthal genes in today's non-African people, usually around 1-2% of their DNA. Earlier ideas pinned the X chromosome gaps, known as Neanderthal deserts, on harmful genes than natural selection weeded out. But researchers now say that's not the full story. In a fresh study published in Science, the team examined DNA from three Neanderthals with traces of modern human ancestry. Those samples showed a 62% surplus of human DNA on the Neanderthal X chromosomes compared

1:01to others. This flip and DNA flow points to mating biases that lasted generations, possibly from social preferences in early human groups, rather than just. One-off encounters. The daily news now is presented by our sponsor. What is cooler than cool? A pillow that plays your sound. S-O-L-I-SollyPillo.com.