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
In the Name of the Brother extraordinary things discovered in the real world are likely to be "studied to death." The name of the character Greg Mendell is similar to that of Gregor Mendel, who is known as the father of modern genetics. It is not known if this reference is deliberate, or what its significance is. Mendell acknowledges that it is against the law to text while driving in Maine, accurately reflecting a state law that went into effect on September 26, 2011. This episode was at the time the lowest rated in the series' run, with a 2.4/6 among 18-49s and only 7.68 million