the nucleus the ribosome the mitochondrion the endoplasmic reticulum
I gave my students this multiple choice question: When the cells in an organism divide and reproduce, the organism can grow. Which cell organelle contains the genetic material for reproduction?

Only one answer is correct among these 4 choices:
- the nucleus
- the ribosome
- the mitochondrion
- the endoplasmic reticulum

Could you tell me which one is correct?

the nucleus