Name___________ Science 7th Roxborough Cell Cycle Questions 1. What are the 2 major phases of the cell cycle? 2. Why do you think it is important for a cell to grow before it replicates its DNA? Be as specific as you can in your answer. 3. What happens during the S phase of the cell cycle? 4. What happens during mitosis? 5. What is the function of spindle fibers? Where do they attach? 6. What is the overall purpose of interphase? 7. What are the three stages of interphase? Name___________ 8. Briefly describe the main events of the mitotic phase. 9. Define cancer. Science 7th Roxborough