If we assume that each square in the punnet square represents one offspring of the heterozygous aabbcc parents, then the square below the punnert square show then phenotypic frequencies of individuals with the same number of dark-skin alleles. these frequencies can then be plotted in a histogram. which phenotype has the highest frequency? a. the phenotypes that result from having 2 or 4 dark-skin allelesb. the phenotypes that result from having 6 dark-skin allelesc. the phenotypes that result from having 0 dark-skin allelesd. the phenotypes that result from having 3 dark-skin alleles