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Who is a woman and who is a man?
At the beginning of 1988, Newsweek published an interesting report on scientific research, entitled "Looking for Adam and Eve". The main content is that scientists trace back to DNA and think that the common ancestor of modern human beings is women who lived 200 thousand years ago.

Today, the gene of this female ancestor exists in everyone on earth, that is to say, there are 5 billion people in the world who are related by blood. Scientists call her Eve.

In order to find a scientific explanation, scientists have done a lot of research. From 65438 to 0987, Rebecca Kahn of the University of Hawaii purified DNA samples from women all over the world to find a unique substance called mitochondria.

Mitochondria exist in cytoplasm and are called energy supply stations of cells. It has its own DNA and can replicate independently. The next generation of mitochondrial DNA generally comes only from the mother and is passed down from generation to generation, so it is a good genetic marker.

The result of the experiment is surprising. It shows that all the genes of modern women come from one woman. Subsequently, geneticists successfully deciphered the Y chromosome code of male genes again. Through research, they come to the conclusion that modern people all have a common father.