A gene that actively controls the expression of a trait is called a ________ gene.
A) recessive
B) mutated
C) recombinant
D) dominant

Question

A gene that actively controls the expression of a trait is called a ________ gene.
A) recessive 
B) mutated
C) recombinant
D) dominant

Quizplus · Accepted Answer

A dominant gene is one that will actively control the expression of a specific trait in an organism, meaning that it will be expressed even if only one copy of the gene is present. A recessive gene, on the other hand, will only be expressed if both copies of the gene are present. Mutated and recombinant genes are not necessarily related to the level of control over the expression of a trait.

A Gene That Actively Controls the Expression of a Trait