In order for a recessive trait to appear in the phenotype:
A)no genes for it can be present
B)two genes for it must be present
C)one gene for it must be present
D)one or two genes for it must be present

Question

Quizplus · Accepted Answer

In order for a recessive trait to appear in the phenotype, two genes for it must be present. This is because recessive traits are only expressed when two copies of the gene are inherited, one from each parent. If only one gene for the recessive trait is present, it will be masked by the dominant allele and not appear in the phenotype.

In Order for a Recessive Trait to Appear in the Phenotype