AP BIOLOGY

Detailed explanation-1: -The variant may be recessive or dominant to the wild-type allele. An example of multiple alleles is coat color in rabbits (Figure 1). Here, four alleles exist for the c gene. The wild-type version, C+C+, is expressed as brown fur.

Detailed explanation-2: -The coat colour of rabbits is expressed through incomplete dominance. The coat colour can be dark brown, light brown, or white. There are 81 dark brown rabbits, 150 light brown rabbits, and 69 white rabbits. Assume that all of the conditions are met for a population in Hardy-Weinberg equilibrium.

Detailed explanation-3: -In other animals, codominance is exemplified by a mix of coat colors in a progeny of parents with different coat colors. For example, a cross between a black-furred male dog and a white-furred female dog could produce offspring with a black-and-white coat.

Detailed explanation-4: -How is coat color in rabbits inherited? Coat color in rabbits is inherited as a series of multiple alleles. This means that there can be more than just 2 alleles for a single gene. In the case of coat color in rabbits, there are four alleles, and each one is expressed with a different phenotype.

Detailed explanation-5: -All the other rabbit colors that you may see, are due to the influence of the other genes. “B” is usually used to reference the Black gene. This gene is the most dominant of the two genes, so a rabbit can show a black color, but carry the brown gene.