A test cross is a mating of an individual with an unknown genotype and an individual that
A) is heterozygous.
B) is homozygous dominant.
C) is homozygous recessive.
D) has any known genotype.
E) is the wild type.

Question

Quizplus · Accepted Answer

The homozygous individual in a test cross has no genes which can mask any recessive genes in the unknown individual, so the genotype of the unknown individual can be easily found.

A Test Cross Is a Mating of an Individual with an Unknown