Final answer:
An overabundance of CDK2 will likely lead to premature or irregular entry into the S phase of the cell cycle, while a mutation in kinase production can disrupt the regular cell cycle progression, potentially causing uncontrolled cell division.
Step-by-step explanation:
If a cell is flooded with CDK2, it is anticipated the cell will enter the S phase of the cell cycle. This anticipation is based on the function of CDK2, a cyclin-dependent kinase that, when bound to cyclin proteins, becomes an active protein kinase capable of activating other proteins that advance the cell cycle past the G1 checkpoint and into the S phase where DNA replication occurs. Given this function, if a cell has a mutation at the G2/M checkpoint resulting in abnormal cyclin-dependent kinase production, a likely consequence is that the cell will experience an irregular progression through the cycle, potentially leading to uncontrolled division or failure to divide.
At the G1 checkpoint, the cell ensures it has the proper environment for DNA synthesis before entering the S phase. Failure at this checkpoint, perhaps due to a mutation in the production of necessary kinases like CDK2, could result in the cell's inability to proceed to DNA replication.