The (dreaded) sun-devil phenotype results from an epistatic interaction between a sex-linked (alleles S/s) and an autosomal gene (alleles D/d), where the dominant allele must be present at BOTH loci, otherwise the an individual shows the hoped-for wildcat phenotype.
(a) If dad is a sun-devil, can he ever have wildcat offspring? Why or why not.
(b) In a particular family, dad and mom are sun-devils, but (thankfully) they are blessed with wildcat offspring in both sexes. What must the parental genotypes be and what are
the expected frequencies of wildcat in their male offspring? In their female offspring?
(c) If these parents have six offspring, what is the probability that at least one is a wildcat?