In Mice, There Is a Set of Multiple Alleles of a Gene

question 52

Essay

In mice, there is a set of multiple alleles of a gene for coat color. Four of those alleles are as follows:
C = full color (wild)
c^ch = chinchilla
c^d = dilution
c = albino
Given that the gene locus is not sex-linked and that each allele is dominant to those lower in the list, diagram the crosses indicated below and give the phenotypic ratios expected from each.
a) wild (heterozygous for dilution) × chinchilla (heterozygous for albino)
b) chinchilla (heterozygous for albino) × albino

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