Scientists discover that all humans come from the same mother who lived 200,000 years ago in Botswana
Story by Mariano Tovar • 2d
If someone were to stand on a pulpit and say that all humans come from a first woman, Eve, and that this is an indisputable biblical truth, we would probably pay little or very little attention. But if a team of researchers were to publish in the prestigious scientific journal Nature that mitochondrial DNA proves that all of today’s humanity comes from a single woman, we would certainly not be so quick to dismiss it.
The findings are not even current. That famous article, “Mitochondrial DNA and human evolution” was published in 1987 and was the first study to uncover the family tree of human evolution. Moreover, it came to that puzzling conclusion: all human beings come from a single woman, who was quickly christened “Mitochondrial Eve”.
Inside every cell of the body there is an organelle called mitochondria that has a DNA distinct from that of the cell itself. It has 37 genes of its own and is descended solely from the mother’s mitochondrial DNA. Scientists sequenced that DNA in individuals from all over the world, analyzed their mutations, and came to the universally accepted conclusion that the original mitochondrial DNA came from a single individual, a woman. The study of the genetic mutations that this mitochondrial DNA has undergone has also served to understand human migrations throughout history.
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