<span>The appropriate response is the promoter. It is perceived by RNA polymerase and a related sigma figure, which thus are frequently conveyed to the promoter DNA by an activator protein's authoritative to its own DNA-restricting site close-by.</span>
White coats= A
Brown Coats= a
The genotype for a heterozygous mouse will be Aa
Remember, hetrozygous means one of each allele. In this case the mouse would have a white coats as it is the dominant allele