All roads lead back to Africa

 作者:端木蒯肪     |      日期:2019-03-07 08:12:01
ASIAN people can trace their roots to Africa, say geneticists, quashing theories that modern humans are descended from a mixture of regional populations. Most scientists believe that modern humans originated in Africa about 100,000 years ago. But some think that a series of early humanoid fossils from Asia show that local communities could have contributed to the modern gene pool. So Li Jin at the Human Genetics Center in Houston, Texas, and his colleagues tested the DNA of more than 12,000 men across modern Asia to find out if this was true. In all the men,