Question

How can a person's muscle cells have the same exact DNA sequences as their nerve cells even though they look and perform completely
A. The two different cells become mutated.
B. The genes expressed in each cell are different.
C. They actually have different DNA in the two types of cells.
D. The genome of the different cells changes​

Answer 1

B. The cell can turn on or off the genes they need or don’t need.

Answer 2

I think the answer is D