Topic Reading-Vol.2763-11/4/2019
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Topic Reading-Vol.2763-11/4/2019
0422-27-5366
〒180-0006 東京都武蔵野市中町2-3-5 IIHA武蔵野1階
電話受付/月〜金 9:00-18:00
Topic Reading-Vol.2763-11/4/2019
Dear MEL Topic Readers,
All modern humans originated in northern Botswana, study says
Homo sapiens is the only remaining human species to which all modern human beings belong. It means “wise men” in Latin. Anatomically, modern humans seem to have appeared in Africa about 200,000 years ago. They migrated from their homeland around 120,000 years ago to the northeast and southwest. But until recently, it wasn’t clear exactly where in Africa they originated from. Now, researchers found that south of the Greater Zambezi River Basin, which includes northern Botswana and parts of Namibia and Zimbabwe, is the area where our ancestors of Homo sapiens began. How did they find it?
Mitochondrial DNA is the physical embodiment of the mitochondrial genome, the sum total of genetic information encoded in the mitochondrion. It is then regarded as a time capsule of our ancestors as it accumulates changes slowly over generations. By comparing mitogenome from people in different regions, researchers can find information on how closely they are related.
Sounds like an enormous work of backward science, doesn’t it?
Enjoy reading the article and learn how homo sapience dispersed from Africa.
https://edition.cnn.com/2019/10/28/world/human-origins-botswana-scn-trnd/index.html
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