Final answer:
The metaphase checkpoint is not a checkpoint for cell cycle control in a eukaryotic cell
Step-by-step explanation:
The correct answer is 3) Metaphase checkpoint.
There are three major checkpoints in the cell cycle of a eukaryotic cell which are the G1/S checkpoint, G2/M checkpoint, and metaphase checkpoint. The G1/S checkpoint checks if the cell is ready to enter the synthesis phase, the G2/M checkpoint ensures that the DNA is properly replicated, and the metaphase checkpoint checks if all the chromosomes are properly aligned before cell division.