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Data from a 40,000-year-old man in China reveals complicated genetic history of Asia
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[QUOTE]Originally posted by Archeopteryx: [QB] Today we have a small collection of bones from Denisovans: from Denisova cave in the Altai, from Baishiya Karst Cave in the Tibetan plateau and from Tam Ngu Hao 2 (Cobra Cave) limestone cave in the Annamite Mountains in Laos. We also have samples of DNA. The bones are too few to exactly know how Denisovans looked like but some attempt to reconstruct them from their DNA has been made. Here is an article about that First portrait of mysterious Denisovans drawn from DNA. Scientists analysed chemical changes to the ancient humans’ DNA to reveal broad, Neanderthal-like facial features. [i]Nature,[/i] 2019 https://www.nature.com/articles/d41586-019-02820-0 [QUOTE] Now, computational biologists have produced a rough sketch of Denisovan anatomy based on epigenetic changes — chemical modifications to DNA that can alter gene activity. Their approach reveals that Denisovans were similar in appearance to Neanderthals but had some subtle differences, such as a wider jaw and skull. “It does help to paint a clearer picture of how they might have looked. Just the idea that it’s possible to use the DNA to predict morphology so well is very impressive,” says Bence Viola, a palaeoanthropologist at the University of Toronto in Canada who has analysed Denisovan remains, but was not involved in this research. [/QUOTE][IMG]https://i.ibb.co/Sx8NNX3/Denisova-portrait.jpg[/IMG] An artist’s impression of a young female Denisovan, based on skeletal traits derived from ancient DNA. [URL=https://media.nature.com/lw800/magazine-assets/d41586-019-02820-0/d41586-019-02820-0_17187842.jpg]Full size[/URL] [/QB][/QUOTE]
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