The binding of a specific cyclin protein to a specific cyclin-dependent kinase (CDK) activates the CDK, which then phosphorylates other cellular proteins, as shown below. The activation of these cellular proteins then allows for the progression of the cell through a specific cell cycle checkpoint. While CDK levels are typically relatively constant, cyclin levels fluctuate over the course of the cell cycle.
Suppose the gene encoding a specific cyclin was mutated so that the cyclin was no longer able to bind to its CDK. What effect would this have on the cell cycle?