Mating an Individual Expressing a Dominant Phenotype, but Whose Genotype

Multiple Choice

Mating an individual expressing a dominant phenotype, but whose genotype is unknown, with an individual expressing the corresponding recessive phenotype is an example of a(n)

A) heterozygous cross.
B) F₁ cross.
C) F₂ cross.
D) parental cross.
E) test cross.