The purpose of checkpoints in the cell cycle is to ensure that there are no mistakes in the mitotic process.
In other words, checkpoints in cell cycles are a kind of quality control that ensures that the major events of the cycle take place without mistakes.
A typical cell cycle consists of the interphase and the m phase, which is essentially the mitotic division phase. The interphase is further divided into:
- G1 phase: cell growth phase
- S phase: DNA synthesis phase
- G2 phase: protein synthesis phase
There are 3 major checkpoints in a typical cell cycle:
- G1 checkpoint: this is where the cell checks that things are in order for division to proceed
- G2 checkpoint: the checks that chromosome numbers and DNA integrity are appropriate for division to occur
- Metaphase checkpoint: this is where the check of whether all sister chromatids are appropriately attached to spindles before proceeding to anaphase.
More on the cell cycle can be found here: https://brainly.com/question/12277305
