A student looked at a stained onion root tip under a microscope. She counted 400 cells. 16 of the cells were in mitosis (their chromosomes were being pulled apart).
One complete cell cycle in these cells takes 20 hours. The percentage of cells in mitosis shows the percentage of the cell cycle time spent in mitosis.
Calculate how long the cells spend in mitosis in each cell cycle. Give your answer in minutes.
[2 marks]