In this activity, you will be presented with cells from the
tip of an onion root. You will classify each cell based on what
phase it is in. At the end you will count up the cells found in
each phase and use those numbers to predict how much time a dividing
cell spends in each phase. You can base your calculation on a total
cell cycle of 24 hours.
Copy this table onto a piece of paper. You can enter data in this table as you go along, or at the end of the activity.