Question

he diagram shows an animal cell.
ribosomes are the sites of protein synthesis in cells. what labeled organelle holds the instructions for protein synthesis?
○ p
○ q
○ r
○ s

Explanation:

The nucleus (labeled R) contains DNA. DNA holds the genetic instructions (genes) that are transcribed into mRNA. The mRNA then carries these instructions to the ribosomes (where protein synthesis occurs). Organelle P is the Golgi apparatus (modifies, sorts, and packages proteins). Organelle Q is likely a vesicle (transports materials). Organelle S is the cell membrane (regulates what enters and leaves the cell). So the organelle with instructions for protein synthesis is the nucleus (R).

Answer:

C. R