Which of the following describes when the cell leaves the cell cycle and no longer divides
The correct answer is: Cell differentiation
The process in which a cell leaves the cell cycle and no longer divides is called cell cycle arrest or cell cycle exit.
The process you are referring to is called cell cycle arrest, which happens when a cell exits the cell cycle and stops dividing. There are several reasons why a cell may enter this state, such as DNA damage, lack of nutrients, or signals from neighboring cells.
To determine which of the options accurately describes cell cycle arrest, we need to evaluate each choice. Here's how you can do that:
1. G0 phase: This phase exists outside the cell cycle and refers to a non-dividing state where cells have exited the cycle temporarily or permanently. It aligns with the description you provided, so it could be the correct answer.
2. S phase: This phase is when DNA synthesis occurs, and cells replicate their genetic material. It doesn't describe the state where a cell leaves the cell cycle permanently, so it is not the correct answer.
3. M phase: This phase is also known as mitosis or cell division, where the replicated chromosomes separate into two daughter cells. It doesn't correspond to the description you provided, so it is not the correct answer.
Based on this evaluation, option 1, G0 phase, is the most suitable choice that describes when a cell leaves the cell cycle and no longer divides.