Question

What are the predicted genotypes and phenotypes of a potential offspring of a blue-eyed grey wolf (bbGG) with a black-coated mother (BbGg) and a wolf that is heterozygous for both traits (BbGg)?

a) Genotype: BbGg; Phenotype: Brown eyes, grey coat
b) Genotype: BbGg; Phenotype: Blue eyes, black coat
c) Genotype: bbGg; Phenotype: Brown eyes, grey coat
d) Genotype: bbGg; Phenotype: Blue eyes, black coat
Choose the correct answer.

Answer 1

The correct predicted genotype and phenotype for the given cross of wolves is bbGg, which would result in a blue-eyed, black-coated wolf.

Step-by-step explanation:

The predicted genotypes and phenotypes of an offspring from a cross between a blue-eyed grey wolf (bbGG) and a wolf that is heterozygous for both coat color and eye color (BbGg) can be determined by a Punnett square analysis. The genotypes Bb and bb would determine the eye color, with b indicating blue eyes and B indicating brown eyes. Since b is recessive, blue eyes would only occur in the bb genotype. The genotypes GG, Gg, and gg would determine the coat color, with G indicating grey coat and g indicating black coat. Here, G is dominant, so both GG and Gg would result in a grey coat, while gg would result in a black coat.

Therefore, the correct answer to the question is d) Genotype: bbGg; Phenotype: Blue eyes, black coat.