Genetic Mix Along the Ethnic Divide

Scientists can divide the world's people into distinct groups by studying the thousands of minor variations in the DNA of individuals. The analysis below shows how some geographic groups have a diverse group of ancestors, many with homelands far apart. This is especially true of such regions as the Middle East that were crossroads for migration and trade over the eons.

Scientists can divide the world's people into distinct groups by studying the thousands of minor variations in the DNA of individuals. The analysis below shows how some geographic groups have a diverse group of ancestors, many with homelands far apart. This is especially true of such regions as the Middle East that were crossroads for migration and trade over the eons.

© 2008 The Washington Post Company