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Human beings are composed of DNA and 99.9 percent of every human being is the same. It means that the concept of races is just a social construct. Not a biological one.
Today the vast majority of those involved in research on human variation would agree that biological races do not exist among humans. Among those who study the subject, who use and accept modern scientific techniques and logic, this scientific fact is as valid and true as the fact that the earth is round and revolves around the sun.
http://europe.newsweek.com/there-no-...e-283123?rm=eu
https://www.youtube.com/watch?v=RK3sguRWYK0
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