Question

The allele for brown fur in mice (B) is dominant over the allele for white fur (b).

The fur color of one mouse is represented by Bb.

What is the genotype of this mouse?

What is the phenotype of this mouse

Answer 1

Genotype: Bb (heterozygous — one dominant B allele and one recessive b allele)

Phenotype: Brown fur (the dominant B allele expresses brown, masking the recessive white).