The Neanderthal Y chromosome may have been lost due to reproductive barriers with modern humans.
A Native American recently went viral after discovering unusual amount of Neanderthal in his DNA which sparked renewed interest about our ancient genetic roots as several human groups existed in “the land before time.”at the time that the interbreeding of human species still remains an untapped area of research. To make a real conclusion, he said, we need to investigate further and then, a study was published shortly thereafter.
It turns out, the young man who went viral isn’t even that rare. Most of us seem to have a little Neanderthal across our DNA. Research seems to suggest that we split — homo sapiens and Neanderthals — over 500,000 years ago to reunite later on as the two groups migrated to other continents.
That aside, we all get some combination of the X from the male or female parent. The Y, however, only comes from the male. Because of that, the absence of this Neanderthal chromosome might provide a clue of some kind. But then, to even out the playing field, no trace of Neanderthal mtDNA has been found in modern humans either which comes directly from the maternal line, so it seems these cycled out for some reason.The manner in which these two groups united for breeding remains uncertain, with little studied in this aspect of our history.and is related to male fertility, maybe these hybrid male offspring did experience issues due to the genetic meeting of the two groups.
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