A trait controlled by a dominant gene _______.
A)will be expressed even when the corresponding gene in the other half of the pair is different
B)will be expressed only if it is paired with two recessive genes
C)will not be expressed if it is paired with another dominant gene
D)will not be expressed when the corresponding gene in the other half of the pair is different

Question

Quizplus · Accepted Answer

A dominant gene will always be expressed if it is present in at least one copy (allele), regardless of the other allele. If it is paired with a different allele, either dominant or recessive, it will still be expressed. Only if a trait is controlled by a recessive gene will it require two copies of that gene to be expressed. Therefore, choices B, C, and D are incorrect.

A Trait Controlled by a Dominant Gene _______