Figure 3.

Association of MC1R variants with skin color. The percentage of individuals carrying a variant MC1R genotype at the five positions tested is shown, plotted against skin color. At the left-hand side of the graph are the frequencies of the MC1R consensus genotype, represented by “0,” and the total for any variant genotype, represented as “1,” “2,” or “3” variants, in the 637 samples genotyped, for which skin-color data, which sums to 100% for each skin color, are available (table 2). The absolute percentage of each variant position considered to be independently carried on one or both alleles, represented as “1” or “2,” is also plotted against skin color, which is on the right-hand side of the graph.