Youtube comments of Anthromedia (@Anthromedia_asia).
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This refers to the overall similarity of the DNA sequences between the entire genomes of humans and chimpanzees.
About 99% of the DNA sequences of humans and chimps are identical at the level of base pairs (the building blocks of DNA). This does not mean that we are 99% genetically identical in every way, but that 99% of our DNA letters (A, T, C, G) are the same.
Relevance: This high similarity reflects our close evolutionary relationship, as both species share a recent common ancestor (around 6–7 million years ago). The 1% difference includes mutations, structural changes, and gene expression differences that make us distinct from chimps.
2East Asian-Denisovan refers to the proportion of shared genetic material that certain East Asian populations have inherited from Denisovans, an extinct species of archaic humans.
The 10% similarity doesn't mean that 10% of the entire East Asian genome is Denisovan. Rather, it means that up to 10% of the DNA in specific individuals from some East Asian groups shows traces of Denisovan ancestry. This suggests that there was interbreeding between Denisovans and the ancestors of modern humans in Asia.
This is a result of hybridization events that occurred tens of thousands of years ago between anatomically modern humans and Denisovans. This percentage can vary among different populations.
The 99% similarity between humans and chimps refers to entire genomes, while the 10% Denisovan similarity in East Asians refers to specific DNA segments inherited from Denisovan ancestors.
Type of relationship: Human-chimp similarity shows a close evolutionary relationship based on shared ancestry. The Denisovan-East Asian similarity is the result of interbreeding between two distinct species of humans. The 99% similarity indicates shared biological traits and evolutionary history, while the 10% similarity indicates the genetic contribution of a specific ancestral population to modern humans.
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