One of a female's X chromosomes is 'silenced' shortly after fertilization so that its genes do not produce the proteins it normally would. This process is known as
A) X chromosome inactivation.
B) epibiological modification.
C) knockout mutation.
D) genetic engineering.
E) X chromosome modification.

Question

Quizplus · Accepted Answer

X chromosome inactivation is a process by which one of the copies of the X chromosome present in female mammals is inactivated. This ensures that females, like males, have one functional copy of the X chromosome in each body cell, preventing them from having a double dose of the X chromosome genes compared to males, who have only one X chromosome.

One of a Female's X Chromosomes Is 'Silenced' Shortly After