character: Dr. Cell
topic: Cell Cycle Regulation
grade: 9
subject: Science
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character: Professor Cyclin
topic: Checkpoint Mechanisms
grade: 9
subject: Science
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character: Miss Mitosis
topic: Role of Cyclins in Cell Division
grade: 9
subject: Science
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character: Mr. Checkpoint
topic: Understanding Cell Cycle Checkpoints
grade: 9
subject: Science
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