TED-Ed: What can DNA tests really tell us about our ancestry?

The video explores the complexities of DNA testing and ancestry. It explains how DNA tests can yield different results for siblings due to recombination, which creates unique genetic combinations. The video highlights that DNA tests rely on comparisons with current populations, not historical genomes, and are limited by the representation in genetic databases. It also discusses the presence of Neanderthal DNA in modern humans, emphasizing the intricate nature of genetic inheritance and the limitations of DNA tests in providing definitive ancestry information.

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