Question

Mark is heterozygous. If B is for brown hair, and b is for blonde hair, what is Mark’s genotype?

A. BB
B. Bb
C. Br

Answer 1

The correct answer is B.Bb

Answer 2

Mark's genotype is Bb.

Step-by-step explanation:

Heterozygous means that the individual has two different alleles for a trait, one from each parent. In this case, Mark has one allele for brown hair (B) and one allele for blonde hair (b).

So, option B is correct.