Question

A black and a white mouse are shown.

The color of the fur is the
✔ phenotype
.The genetic combination of alleles that determine the fur color is called the
✔ genotype
.

Suppose that a mouse with black fur has both an allele for black fur and an allele for white fur (Bb). Based on this information, you can conclude that the dominant allele must be for
fur andthe recessive allele must be for
fur.

Answer 1

Dominant allele: black fur
Recessive allele: white fur

(Notation: B = black (dominant), b = white (recessive); a Bb heterozygote shows the dominant black phenotype.)