The Genotype of an Organism That Expresses a Dominant Trait

Multiple Choice

The genotype of an organism that expresses a dominant trait can be determined by

A) crossing the organism with a homozygous dominant organism.
B) crossing the organism with a heterozygous dominant organism.
C) crossing the organism with a homozygous recessive organism.
D) observing the phenotype of the progeny from any cross.
E) observing the genotype of the progeny from any cross.