Neanderthal DNA loss tied to ancient interbreeding dynamics
DNA
University of Pennsylvania Feb 26 2026 The human genome is a rich, complex record of migration, encounters, and inheritance written over thousands of millennia. In this month of love, amid the exchange of flowers and cards, genomic research by members of Sarah Tishkoff's lab at the University of Pennsylvania are revisiting a particularly intimate chapter, suggesting that ancient mating patterns between modern humans and Neanderthals shaped why Neanderthal DNA is largely missing from the human X
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