Question

Darla has two different alleles of a gene that controls hair color. She must be _______ for the hair color trait. heterogenous heterozygous homozygous homogenous

Answer 1

The answer is heterozygous. It means that she has two different alleles for one specific gene. And homozygous means that it has two same alleles for one specific gene. Heterogenous/homogenous means the different or same between organisms.