Specialized cells differ from one another because
A) they only express certain genes.
B) they express all genes.
C) they turn off gene expression once specialized.
D) they may re-enter the cell cycle at any time.
E) they do not express housekeeping genes.

Question

Quizplus · Accepted Answer

Specialized cells differentiate by selectively expressing only certain genes. This allows cells to take on specific functions, such as muscle contraction or neurotransmitter release, while turning off genes that are not necessary for their specialized role. This differential gene expression is what makes specialized cells different from each other.

Specialized Cells Differ from One Another Because