What happens to DNA during prophase? Why? What are the string

What happens to DNA during prophase?
DNA replication occurs during
interphase. Why?
Why?
What are the string like structures visible is
this phase and what is their function?
What reappears in this phase?
Draw the missing phase.
1. Identify the phases of mitosis that are circled. Write the name on the line.
2. Circle and identify the phase of 2 more cells. Label them X and Y. Explain below your reasons for your decision.
X: phase ______________________: reason
Y: phase ______________________: reason
3. What are the stages of the cell cycle? _________________ _________________ __________________
4. What stage do cells spend the majority of time in? _______________________