Answer:
The correct answer is - checkpoints.
Explanation:
In the cell cycles, there are different stages, and before every stage are monitored by the internal controls known as checkpoints. These checkpoints monitored the errors. Checkpoints are present in 1st the end of G1, a 2nd at the G2/M transition, and the 3rd during the metaphase of the cell cycle.
The most important checkpoint is at the end of G1 which decides that cell will go in the division or not.
