To determine HOW LONG each phase of mitosis is in onion cells, you will
Group of answer choices
focus your slide at 40X on one field of dividing cells and count how many cells are in each phase
find one active cell in the process of dividing and use a timer to see how long each phase takes
count the total number of cells in one field of view, and then divide by 5 (interphase, prophase, metaphase, anaphase, telophase)
focus your slide at 4X and carefully count how many cells are in each phase as you scan from the top to the bottom of your entire slide