1.when cell leave G0 and commit to a round of the cell cycle

1.when cell leave G0 and commit to a round of the cell cycle,different proteins within the cell begin to accumulate and then rapidly disappear as the cycle progresses .these proteins are called_____
2.when checkpoint controls over cell division are damaged ,a cell repeatedly divides,forming a mass of cell called a ___
3.checkpoint controls consist of proteins that detect mistakes and damage and quickly halt the cell cycle until repairs are made.when this occurs the cell is said to be in_______-________ ________