Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Significant latitudinal clines for haplotype 65_3 identified by BlocBuster in the skin color gene MC1R. Haplotype 65_3 shows a significant nonlinear regression with latitude due to the low frequency of this haplotype in sub-Saharan Africa, but exclusion of the sub-Saharan population still results in a significant linear regression with latitude, as shown by the thick straight line.
