Final answer:
A cell with DNA damage will be stalled at the G2 checkpoint to allow for DNA repair or replication, and if repair is not possible, p53 may trigger apoptosis.
Step-by-step explanation:
A cell that has acquired damage to some of its DNA will be stalled at the G2 checkpoint of the cell cycle. The G2 checkpoint plays a crucial role in ensuring that all chromosomes have been replicated and that the replicated DNA is undamaged. When problems with the DNA are detected, the cell cycle is halted to allow the cell time to attempt to complete DNA replication or repair the damaged DNA. Should repairs not be possible, the p53 protein can initiate apoptosis to prevent the propagation of damaged DNA.