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Ancient Egyptian DNA from 1300BC to 426 AD
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[QUOTE]Originally posted by Cass/: [QB] @ Elmaestro ...that study made the headlines last year, but if you read what it actually says- [QUOTE]Dr Mendez stressed this was still [b]only a hypothesis[/b]. "The amount of Neanderthal DNA in modern humans nowadays is relatively low [b]so it could have been lost by drift[/b]," he said.[/QUOTE] http://www.abc.net.au/news/science/2016-04-08/neanderthal-y-chromosome-disappeared-from-modern-men/7308982 It wasn't a proven hypothesis and the most parsimonious theory is still drift: "mtDNA is inherited maternally and transmitted from a mother to her children, while the NRY is inherited paternally passing down from father to son... [b]Uniparental loci are, however, sex-specific and experience strong drift, providing a limited view of the complex human history.[/b] For example, Neanderthal mtDNA analysis shows no evidence of admixture with modern humans, although admixture has occurred and is detectable when the whole genome is considered." (Haber et al. 2017) "The effective population size of autosomal variants is expected to be four times that of mtDNA and NRY, making autosomal variants less prone to drift and providing insight further back into human history." (Haber et al. 2017) There's also a number of studies on MtDNA selection ([URL=http://link.springer.com/chapter/10.1007%2F978-1-4020-5121-0_12]Hawks et al. 2006[/URL]; Wolpoff, 2009), especially in regards to Neanderthals. I'm not sure for Y-DNA, but MtDNA isn't even a 'neutral' genetic marker?! [/QB][/QUOTE]
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