G2 checkpoint

The G2 checkpoint is a critical control mechanism in the cell cycle, occurring just before a cell divides. After the DNA has been duplicated during the S phase, the G2 checkpoint ensures that the DNA is intact and error-free. If there are any issues, like damaged DNA or incomplete replication, the cell is halted at this stage. This allows for repairs to be made or, if the damage is irreparable, the cell can trigger self-destruction to prevent passing on errors. Essentially, the G2 checkpoint serves as a quality control for cell division.