AP Biology Unit 4: Regulation of the Cell Cycle Worksheet (4.6)This Regulation of the Cell Cycle worksheet is built specifically for AP Biology Unit 4 (Cell Communication & Cell Cycle) and targets Topic 4.6 with clarity and precision. It’s ideal for guided practice, review, formative assessment, or homework—without extra prep on your end. What’s included: 10 targeted multiple-choice questions aligned to College Board expectations Focus on cell cycle checkpoints (G1, G2, M), cyclins, CDKs, an