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Tag Archives: Mitochondrial Eve

We’ve been wrong about when humans spread out from Africa

14 Friday Sep 2012

Posted by sedeer in Evolution, Genetics, Humans

≈ 7 Comments

Tags

Hominidae, Human, Mitochondrial DNA, Mitochondrial Eve, Mutation rate, Popular science, Radiocarbon dating, science

mtDNA map of human migrations (Wikipedia)Most of the interesting recent events in human evolution probably happened longer ago than we had thought, according to Aylwyn Scally and Richard Durbin of the Sanger Institute.  In an opinion piece published in Nature Review Genetics this week,  they re-examine the story of how humans left Africa, taking into account new data from several recent whole-genome studies.

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Adam & Eve: Behind the Myth

08 Wednesday Feb 2012

Posted by sedeer in Evolution, Genetics, Humans

≈ 4 Comments

Tags

ancestry, animals, biology, Education, evolution, Human, Mitochondrial DNA, Mitochondrial Eve, out of Africa, Popular science, science, Y-chromosomal Adam

Out of Africa (Image via Wikipedia)In a paper published in 1987 in the leading science journal Nature, researchers claimed to have identified a female from whom all humans alive today are descended, dubbed “mitochondrial Eve”; nearly ten years later, another group of scientists published findings identifying her male counterpart, “Y-chromosomal Adam”. The choice of names, though evocative, was unfortunate and uninformative, since the use of “Adam” and “Eve” has led to several major misunderstandings about these two ancient humans.  In this post, I’ll try to clear up some of these misunderstandings by explaining what these terms actually mean and how scientists have gone about trying to identify our most recent common male and female ancestors.

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All text and original images by Sedeer El-Showk. Licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

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