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According to a study published in 2020, there are indications that 2% to 19% (or about ≃6.6 and ≃7.0%) of the DNA of four West African populations may have come from an unknown archaic hominin which split from the ancestor of humans and Neanderthals between 360 kya to 1.02 mya.
The human genome is a complete set of nucleic acid sequences for humans, encoded as the DNA within each of the 24 distinct chromosomes in the cell nucleus. A small DNA molecule is found within individual mitochondria .
Such sequences are not rare. It has been estimated that in material from humans, between 40 and 90% of viral sequences are from dark matter. [21] [22] [23] Human blood contains over three thousand different DNA sequences which cannot yet be identified. [24] A mycological study from 2023 found that dark matter fungi seem to dominate the fungal ...
Human DNA recovered from remains found in Europe is revealing our species’ shared history with Neanderthals. The trove is the oldest Homo sapiens DNA ever documented, scientists say.
The human genome contains about 15,000 pseudogenes derived from protein-coding genes and an unknown number derived from noncoding genes. [33] They may cover a substantial fraction of the genome (~5%) since many of them contain former intron sequences.
The more divergent Denisovan mtDNA has been interpreted as evidence of admixture between Denisovans and an unknown archaic human population, [31] possibly a relict H. erectus or H. erectus-like population about 53,000 years ago. [28]
Since 2005, evidence for substantial admixture of Neanderthal DNA in modern populations is accumulating. [2] [3] [4] The divergence time between the Neanderthal and modern human lineages is estimated at between 750,000 and 400,000 years ago. The recent time is suggested by Endicott et al. (2010) [5] and Rieux et al. (2014). [6]
According to a study published in 2020, there are indications that 2% to 19% (or about ≃6.6 and ≃7.0%) of the DNA of four West African populations may have come from an unknown archaic hominin which split from the ancestor of humans and Neanderthals between 360 kya to 1.02 mya.