In order for a dominant trait to appear in the phenotype:
A)no genes for it must be present
B)two genes for it must be present
C)only one gene for it has to be present
D)None of these are true.

Question

Quizplus · Accepted Answer

For a dominant trait to appear in the phenotype, only one gene for it has to be present. This is because dominant traits only require one copy of the gene to be expressed, while recessive traits require two copies.

In Order for a Dominant Trait to Appear in the Phenotype