A process that can greatly affect the presentation of an X-linked phenotype in carrier females is:
A) Interfering mutations
B) X-inactivation
C) Mitochondrial expression
D) Recombination between X homologues
E) Mutation repair between homologues

Question

Quizplus · Accepted Answer

X-inactivation is a process that occurs in females where one of the two X chromosomes is randomly inactivated in each cell. This can greatly affect the presentation of an X-linked phenotype in carrier females because if the X chromosome carrying the mutant allele is inactivated, the phenotype may not be expressed, whereas if the X chromosome with the normal allele is inactivated, the phenotype may be expressed.

A Process That Can Greatly Affect the Presentation of an X-Linked