How can ancient DNA provide insight into past migrations that ana...

Question

How can ancient DNA provide insight into past migrations that analyses of extant human genomes fail to uncover?

Accepted Answer

Hey, everyone. Let's take a look at this question together. The discovery of the Deni Savan hominid species in 2010 was made possible through the analysis of ancient DNA extracted from a finger bone found in a Siberian cave. What is one way in which the analysis of this ancient DNA has helped researchers understand the evolutionary history of modern humans. Is it answer choice? A by providing evidence for interbreeding between Denny Savan and modern humans. Answer choice B by revealing genetic similarities between Deni Savants and neanderthals. Answer choice C by confirming the presence of a distinct Deni Savan population in Asia or answer choice D by demonstrating that Dennis Savan were the direct ancestors of modern humans. Let's work this problem out together to try to figure out which of the following answer choices is correct. So we know that the researchers analyzed that ancient DNA that was extracted from the finger bone that they found in a Siberian cave. And from that ancient DNA that was extracted from the finger bone, they were able to determine that it belonged to an unknown hominid group which that unknown hominid group was later identified as Denis vans based on proof of crossbreeding between Denny Savan and modern humans. So the ancient DNA that was extracted from the finger bone belonged to a Denny Savant Hominid group. And so from that analysis of the ancient DNA, it helped the researchers understand the evolutionary history of modern humans. Since that ancient DNA extracted from the finger bone belonged to an unknown hominid group that was later identified as Dennis Savan because of the proof of crossbreeding between the Denise Savan and modern humans. So it helped researchers understand the evolutionary history by providing evidence for interbreeding between Denny Savan and modern humans. Which means that answer choice. A is the correct answer. Since that analysis of the DNA and the discovery of that unknown hominid group helped them provide the evidence of the interbreeding between the Denise savants and modern humans as well as between the Denise Savan and Neanderthals, which led to them understanding the evolutionary history of modern humans. So answer choice. A is the correct answer. I hope you found this video to be helpful. Thank you and goodbye.

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How can ancient DNA provide insight into past migrations that analyses of extant human genomes fail to uncover?