PATHOLOGY

Detailed explanation-1: -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-2: -A rabbit with the genotype of “BB” would have a phenotype of black fur, a genotype of “Bb” would have gray fur (a display of both black and white) and a genotype of “bb” would have a phenotype of white fur.

Detailed explanation-3: -Because the B allele is dominant over the recessive b allele, so a rabbit with genotype Bb will have the same coat color phenotype as a rabbit with the dominant homozygous genotype BB. View this relationship in a Punnett square.

Detailed explanation-4: -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?