Answer the following question about human evolution as infer

Answer the following question about human evolution as inferred from genome sequencing.

Summarize the demographc history of humans that explains how certain populations acquired Neandertal and Denisovan DNA. (4 sentence maximum)

Solution

There is a hypothesis that anatomically modern human inbreed with the Neandertal population. Neandertal genome project presented genetic evidence that interbreeding did took place. Portion of Neanderthal admixture is present in the DNA of modern Eurasians and Oceanians, and nearly absent in sub-Saharan African populations. Some part of the genome of Melanesians is derived from Denisovan DNA. It is possily because of early migration of the ancestors of melanesians into southeast asia.