Even when other areas of science had considerable achievements, genetic has yet to shown its true meaning. What they had found is that genetic differences from one race to another is very minute. The difference for a member of that race with a member of that same race however is very different.
Some articles on Genetic differences among races;
Genetic Differences in Races
Biology - Race and Religion
So, as geneticists puts it "Human races dont exist. Only sligh varation in genetic makeup". What are your views about age old concept of races and the new humanity as just one species point of view?