Most polymorphisms do not result in a phenotypic difference since they are typically
A)nonsense mutations.
B)either missense or neutral mutations.
C)either silent mutations or are in non-coding regions.
D)either missense mutations or are in promoter regions.

Question

Quizplus · Accepted Answer

Polymorphisms that do not result in a phenotypic difference are often either silent mutations in coding regions or are in non-coding regions, as these changes do not alter the amino acid sequence of the resulting protein or affect gene expression. Missense mutations and mutations in promoter regions can have phenotypic effects and are thus less likely to be polymorphic if they result in a functional difference. Nonsense mutations result in premature termination of protein synthesis and are typically not polymorphic since they usually result in a non-functional protein.

Most Polymorphisms Do Not Result in a Phenotypic Difference Since