The role of cyclin-dependent kinases in the cell cycle is that, they stop the cycle if something has gone wrong.
Explanation:
In Eukaryotic cells cyclin-dependent kinases are universal regulator cell. It undergoes a constant cycle and degradation known as Mitotic and G1 cyclin. When cycle dependent cycle synthesize it acts like an activating protein and then bind to cyclin-dependent kinases forming cyclin-dependent kinases complex.
Now it acts as signal to the cell to pass the next phase of cell cycle. After its cyclin gets degraded, it deactivates the cyclin-dependent kinases and from particular phase signalling stop
