Interbreeding between archaic and modern humans been shown that Neanderthal ancestry has been selected against in conserved biological pathways, such as RNA processing. Consistent with the hypothesis that purifying selection has reduced Neanderthal contribution in present-day modern human genomes, Upper Paleolithic Eurasian modern humans (such as the Tianyuan modern human) carry more Neanderthal DNA (about 4–5%) than present-day Eurasians modern humans (about 1–2%). Genes affecting keratin were found to have been introgressed from Neanderthals into modern humans (shown in East Asians and Europeans), suggesting that these genes gave a morphological adaptation in skin and hair to modern humans to cope with non-African environments. This is likewise
The Hair and Skin Trading Company Up and Then Forgetting Them". Mackay and Webb played several gigs around London with Tony Irving in a free noise / jazz band called Unity Gain,releasing a lathe cut L.P in Jan 2014 titled "Sounds from the Room" playing the Dublin Castle,London in June 2014 . Webb continues to make music under the name Micro / Nigel Webb and Digital Signal Recordings with a number of new projects in progress. The Hair and Skin Trading Company The Hair and Skin Trading Company is a British drone / avant-noise group, formed in 1991 by ex-Loop members Neil Mackay (vocals/bass) and John