. Suppose a single gene controls the color of hamsters: black (B) is dominant and brown (b) is recessive. Hence, a hamster will be black unless its genotype is bb. Two hamsters, each with genotype Bb,...

. Suppose a single gene controls the color of hamsters: black (B) is dominant and brown (b) is

recessive. Hence, a hamster will be black unless its genotype is bb. Two hamsters, each with

genotype Bb, mate and produce a single offspring. The laws of genetic recombination state that

each parent is equally likely to donate either of its two alleles (B or b), so the offspring is equally

likely to be any of BB, Bb, bB, or bb (the middle two are genetically equivalent).

(a) What is the probability their offspring has black fur?

(b) Given that their offspring has black fur, what is the probability its genotype is Bb?