Question

in a certain species of mouse, coat color is determined by a single gene. the alleles for coat color are b, which codes for brown fur, and b, which codes for white fur. if a mouse displays the dominant trait for coat color, what would be its phenotype?

bb
bb
brown
white

Explanation:

Phenotype refers to the observable physical characteristics. The allele B for brown fur is dominant. So a mouse with the dominant trait will have brown fur as its phenotype.

Answer:

C. brown