AP BIOLOGY

Detailed explanation-1: -The chances of having a chicken that is black and white from a mating between a black (BB) chicken with one black and white (BW) chicken will be 50 percent (50%). In genetics, codominance occurs when two alleles of the same gene are both expressed in heterozygous individuals.

Detailed explanation-2: -In chickens, coat color is a CODOMINANT trait, where black (B) and white (W) feathers are BOTH expressed. Individuals that have both alleles are speckled.

Detailed explanation-3: -For Example: In chickens, the allele for black feathers is co-dominant with the allele for white feathers. These chickens will have BOTH black and white feathers.

Detailed explanation-4: -The color of feathers will be black and white as both alleles express in the phenotype and neiter of tese two alleles is able to dominate over the other. The feather color in chicken in question exhibits the phenomenon of incomplete dominance.

Detailed explanation-5: -In poultry genetics, both black (BB) and white (WW) are dominant. So breeding a black rooster with a white hen would result in a black-and-white chicken.