Cell Cycle: Phases and Checkpoints Practice Questions
20 free Cell Cycle: Phases and Checkpoints practice questions for the Zoology, each with the correct answer and a detailed explanation. Open any question below, or take the full set as an interactive quiz.
Questions
20 questions
All Cell Cycle: Phases and Checkpoints questions
- Q1. Which phase of the cell cycle is primarily responsible for DNA replication?
- Q2. During which phase does the cell mainly grow and prepare the machinery required for DNA synthesis?
- Q3. Which checkpoint ensures that DNA replication is complete and undamaged before mitosis begins?
- Q4. Cyclins primarily function by:
- Q5. Which cyclin-CDK complex is most important for the transition from G1 to S phase?
- Q6. The spindle assembly checkpoint primarily monitors:
- Q7. Which event is characteristic of the G2 phase of the cell cycle?
- Q8. What happens to cyclin levels during the cell cycle?
- Q9. Which phase occupies the longest duration in a typical animal cell cycle?
- Q10. Which protein acts as a major inhibitor of cyclin-CDK complexes during DNA damage?
- Q11. The restriction point in G1 phase determines whether a cell:
- Q12. Which cyclin is primarily associated with mitosis?
- Q13. Which phase of mitosis involves alignment of chromosomes at the equatorial plate?
- Q14. What is the main function of CDKs in the cell cycle?
- Q15. Which checkpoint prevents cells with damaged DNA from entering S phase?
- Q16. In which phase does cytokinesis usually begin?
- Q17. Which cell cycle phase is absent in rapidly dividing embryonic cells?
- Q18. What triggers the transition from metaphase to anaphase?
- Q19. Which molecule ensures sister chromatids remain attached until anaphase?
- Q20. Entry into G0 phase is best described as: