"Modern human females and male Neandertals had trouble" Topic
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Tango01 | 25 Apr 2016 10:05 p.m. PST |
… making babies. Here's why. "After years of sequencing the genomes of female Neandertals, researchers have finally got their first good look at the Y chromosome of a male Neandertal—and found that it is unlike that of any other Y in modern humans living today. Even though Neandertals and modern humans interbred several times in the past 100,000 years, the DNA on the Y chromosome from a male Neandertal who lived at El Sidrón, Spain, 49,000 years ago has not been passed onto modern humans, researchers report today in The American Journal of Human Genetics. The finding fits with earlier studies that have found that although living Asians and Europeans have inherited 1% to 3% of their DNA from their ancestors' interbreeding with Neandertals, they are missing chunks of Neandertal DNA on their Y chromosomes. This has suggested that female modern humans and male Neandertals were not fully compatible and that male Neandertals may have had problems with sperm production. The new study finds a clue to why: The El Sidrón Neandertal had mutations in three immune genes, including one that produces antigens that can elicit an immune response in pregnant women, causing them to reject and miscarry male fetuses with those genes…" See here link Amicalement Armand |
skipper John | 26 Apr 2016 5:17 a.m. PST |
Then why do I have all this hair on my back? |
zippyfusenet | 26 Apr 2016 5:24 a.m. PST |
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Mardaddy | 26 Apr 2016 7:51 a.m. PST |
Yea, that's it… they only did it to make babies… |
legatushedlius | 26 Apr 2016 9:14 a.m. PST |
Didn't stop the Neanderthals trying, though. link
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