Blonde hair (b) is recessive, and brown hair (B) is dominant.

Question

A parent has brown hair (Bb). Their first child has blonde hair (bb). Their second child has brown hair (BB).

What must the other parent have (hair color and allele combination)?

(1 point)

O Bb, brown hair

Bb, blonde hair

O. BB, brown hair

O bb, blonde hair

Answer 1

The other parent must have the allele combination Bb and brown hair.