In multicellular organisms, the process of differentiation produces cells that are specialized to perform specific functions. For example, one cell may become a muscle cell whose function is to shorten or lengthen to allow movement. Another cell may become a nerve cell whose function is to relay signals in response to stimuli.
How do the DNA and genes in a muscle cell compare to the DNA and genes in a nerve cell?
A.
The DNA is the same, but the cells contain different genes.
B.
The DNA is different, but the same genes are activated.
C.
The DNA is different, but the cells contain the same genes.
D.
The DNA is the same, but different genes are activated.