Moreover, a clinal distribution is a gradual change in phenotype of allele differecnes over gerography and one hypothesis that exaplain this change from Northern to tropical latitudes is sunlight because it's the best source for individuals to acquire vitamin D. Considering the fact that, Northern latitudes has limited sunlight in the winter cause many individuals to become unhealthy. Therefore, “The best way to understand the genetic differences that we find in human populations is … by distance and it's a continuous change from one group to another. And we can look at this by using the example of skin color. If we were to look only at people in the tropics and the people in Norway, we'd come to the conclusion that as we walk from the tropics to Norway, we would definitely see a continuous change in skin tone.” The concept of concordance is important for those who believe that race is biologically real because it means that simple external differences in biology are associated with the complecated internal
Moreover, a clinal distribution is a gradual change in phenotype of allele differecnes over gerography and one hypothesis that exaplain this change from Northern to tropical latitudes is sunlight because it's the best source for individuals to acquire vitamin D. Considering the fact that, Northern latitudes has limited sunlight in the winter cause many individuals to become unhealthy. Therefore, “The best way to understand the genetic differences that we find in human populations is … by distance and it's a continuous change from one group to another. And we can look at this by using the example of skin color. If we were to look only at people in the tropics and the people in Norway, we'd come to the conclusion that as we walk from the tropics to Norway, we would definitely see a continuous change in skin tone.” The concept of concordance is important for those who believe that race is biologically real because it means that simple external differences in biology are associated with the complecated internal