Genetic Variation

Africans have more genetic variation than anyone else on Earth. This is from a new study that helps lower the location where humans first evolved. It was probably near the South Africa Namibia border. The largest study of African genetics were undertaken. They also found that nearly three fourths of African-Americans can trace their ancestry to West Africa. The new study was published Thursday in the online edition of the journal Science. Given the fact that modern humans arose in Africa, they have had time to accumulate dramatic changes in their genes. That's what Sarah Tishkoff said. She is a geneticist at the University of Pennsylvania. People have been adapting to the environment in Africa. Over 10 years, she and an international team of researchers went to Africa finding samples. The samples were supposed to be used to compare the genes of various people. There is an estimated 2,000 distinct language groups in Africa. It was broken into a few categories. This was often but not always following gene flow. Movement of a language is usually from arrival of new people. I learned gentic variation at school but I didn't know that Africans have the most gentic variation on Earth.