The central function of X-inactivation is
A)silencing imprinted genes.
B)enhancing the expression of genes on the chromosome left active.
C)dosage compensation.
D)silencing deleterious alleles.
E)None of these

Question

Quizplus · Accepted Answer

The central function of X-inactivation is dosage compensation. This is achieved by inactivating one of the two X chromosomes in females, which ensures the levels of X-linked gene expression are similar to those in males who only have one X chromosome. This is essential for normal development and cellular function. Silencing imprinted genes, enhancing the expression of genes on the active chromosome, and silencing deleterious alleles are all possible consequences of X-inactivation but are not its central function.

The Central Function of X-Inactivation Is