Question

A mutation in one gene that reverses the phenotypic effects of a mutation in a different gene is

A. an intergenic suppressor.

B. an intragenic suppressor.

C. an up promoter mutation.

D. a position effect.

Answer 1

An intergenic suppressor is a mutation in one gene that reverses the phenotypic effects of a mutation in a different gene.

Step-by-step explanation:

A mutation in one gene that reverses the phenotypic effects of a mutation in a different gene is an intergenic suppressor. This means that the mutation in one gene is able to counteract or suppress the negative effects of the mutation in the other gene. It is called intergenic because it involves two different genes, with one gene acting on the other to restore a normal phenotype.