5A: Cell Cycle

Which of these must occur during the S phase of the cell cycle so that two daughter cells can be produced during M phase (Mitosis)?

A student is trying to find a cell in a particular phase of mitosis. The student is looking for evidence that spindle fibers are separating the chromosomes to ensure that each new nucleus has one copy of each chromosome. Which cell is in the phase of mitosis that the student is looking for?

This model of the cell cycle includes two arrows that each represent a process in the cycle. What do the two arrows represent?

Which answer choice below best compares the events that occur during different stages of the cell cycle?