4.6.A—Describe the role of checkpoints in regulating the cell cycle

Describe the role of checkpoints in regulating the cell cycle.

• A number of internal controls or checkpoints regulate progression through the cell cycle.
• Interactions between cyclins and cyclindependent kinases control the cell cycle.
  • Exclusion: Knowledge of specific cyclin-CdK pairs or growth factors is beyond the scope of the AP Exam.