Question

why do different cells have different functions? a because different cells have different genes. b because different cells have different proteins. c all cells have the same functions. d because different cells have different dna.

Explanation:

Cells in a multicellular organism have the same DNA and genes. But they have different functions due to differential gene - expression which leads to the production of different proteins. Proteins are responsible for most cellular functions.

Answer:

B. Because different cells have different proteins.