Question

multiple choice question
mature neurons are unable to undergo further mitosis because they lack what organelle?
golgi apparatus
centrioles
endoplasmic reticulum
ribosomes

Explanation:

Centrioles are crucial for forming the spindle fibers during mitosis. Mature neurons lack centrioles, which prevents them from undergoing further mitosis. The Golgi apparatus is involved in modifying, sorting, and packaging proteins. The endoplasmic reticulum is for protein and lipid synthesis. Ribosomes are the sites of protein synthesis. None of these (Golgi apparatus, endoplasmic reticulum, ribosomes) are directly related to the mechanism of mitosis in the way centrioles are.

Answer:

centrioles