What would genotype of a female spotted brown rabbit whose mother was solid black?

Rabbits can have solid or spotted coats, and the base color can be either brown or black. Spotted coat color is dominant to solid, and black is dominant to brown. Complete the following problem b answering the following questions.What would genotype of a female spotted brown rabbit whose mother was solid black?
First, you assign the letters to the allele.





capital ';S'; = spotted, lower-case ';s'; = solid


capital ';B'; = black, lower-case ';b'; = brown





The mother is solid black, so she must have: ss and B? We don't know the other allele of base color. It could be ';B'; or ';b';. But that doesn't matter.





The daughter rabbit is spotted brown. Brown is recessive, so she must have both of her alleles for base color to be brown =%26gt; bb Since it's spotted, it must have at least one capital ';S';. The other you don't know. So the overall allele for the daughter rabbit is: S?bb





But it's quite easy to figure out the question mark in S?bb. It must be a lower-case ';s';. Why? Because she must receive at least one allele from her mother, and one allele from her father, and since both of her mother's alleles are lower-case ';s';, the daughter rabbit must also have a lower-case ';s';.





Therefore, the final genotype for the daugther rabbit (spotted brown) is Ssbb