DNA with closest link to mitochondrial Eve - Humankind was born Adam' and 'Eve ?

1 year ago
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I just really loved it when I read that the scientists proved that everyone shared their DNA with mitochondrial Eve a short black woman. Which means that everyone has her DNA so all of us are black. Couldn’t be happier about it.

The analysis of mitochondrial DNA (mtDNA) fills a vital niche in forensic genetics. It is superior to standard nuclear DNA (nDNA) typing when samples have to be identified that do not contain enough nDNA or need to be evaluated with respect to their maternal relatedness.

Mitochondrial DNA (mtDNA) is the physical embodiment of the genetic information encoded in the mitochondrion. Technically, the term ‘mitochondrial DNA’ encompasses not only the mitochondrial genome per se, but additional DNA types (e.g., small linear plasmid-like DNAs) that are present in the mitochondria of some organisms. As its name implies, mtDNA is compartmentalized within the mitochondrion and is therefore physically and transcriptionally separate from the main nuclear genome of the eukaryotic cell.

In human genetics, the Mitochondrial Eve (also mt-Eve, mt-MRCA) is the matrilineal most recent common ancestor (MRCA) of all living humans. In other words, she is defined as the most recent woman from whom all living humans descend in an unbroken line purely through their mothers and through the mothers of those mothers, back until all lines converge on one woman.

Almost every man alive can trace his origins to one man who lived about 135,000 years ago, new research suggests. And that ancient man likely shared the planet with the mother of all women.

The findings, detailed today (Aug. 1) in the journal Science, come from the most complete analysis of the male sex chromosome, or the Y chromosome, to date. The results overturn earlier research, which suggested that men's most recent common ancestor lived just 50,000 to 60,000 years ago.

Despite their overlap in time, ancient "Adam" and ancient "Eve" probably didn't even live near each other, let alone mate.

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