WASHINGTON - A new genetic analysis of people from around the world adds further confirmation to the African origin of humans. The study of genetic details from 938 individuals from 51 populations provides evidence of how people are related and different, researchers led by Richard M. Myers of Stanford University report in Friday's issue of the journal Science.

The team looked at variations in 650,000 sections of each of the DNA samples, providing a view of the similarities and differences between people in greater detail than had been available previously.

Scientists have long believed that modern humans first developed in Africa and spread from there to populate the rest of the world, a theory strongly supported by the new analysis, the researchers said.

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