AP BIOLOGY

Detailed explanation-1: -In rabbits, the B gene controls the color base of the coat. The B gene has two alleles: B and b. The B allele is considered the wild-type allele: it codes for black color. The b allele codes for chocolate (brown) color base.

Detailed explanation-2: -In rabbits, black (B) coat colour is dominant over white (b) coat colour. Which Punnett square correctly represents a cross between a rabbit heterozygous for coat colour and a white rabbit?

Detailed explanation-3: -In rabbit, black skin (B) is dominant over brown skin (b), and short hair (S) is dominant over long hair (s). All F1 offsprings are heterozygous black-short haired.

Detailed explanation-4: -In rabbits, black skin (B) is dominant over brown skin (b) and short hair (S) is dominant over long hair (s). If a homozygous black skin, short-haired male is crossed with a homozygous brown skin, long-haired female, all F1 offspring are heterozygous black and short-haired.