A dominant allele affects the organism's
A) phenotype, only if the organism carries two copies of that allele.
B) genotype, as long as a recessive allele for that gene is absent.
C) genotype, as long as a matching allele is present on the other chromosome.
D) phenotype, no matter what other allele for that gene the organism holds.

Question

Quizplus · Accepted Answer

Dominant alleles affect an organism's phenotype regardless of the other allele present for that gene. This means that even if the other allele is recessive, the dominant allele's trait will be expressed in the phenotype.

A Dominant Allele Affects the Organism's