Lab 7
Select one side of the root tip. Scan 5 columns across and 20 cells down within each column. Identify the phase that each cell is in, to the best of your understanding. Use initials for the phases:
1. I = Interphase
2. P = Prophase
3. M = Metaphase
4. A = Anaphase
5. T = Telophase
Record a grid of cells that looks something like this to reference later:
I M I I I
I I I I A
I I I P I
I I I I I
T I I I I
Determine the number of cells in each stage of mitosis by counting every incidence of its corresponding letter. For example, add all letter I’s to determine the number of cells in interphase, and so on for each stage. Record this information.
When you are finished, drag the slide back to the Containers shelf.
Mitosis in a Whitefish Blastula
The cells of a blastula, or developing embryo, divide rapidly, which make this whitefish slide useful for viewing the different stages of mitosis.
Take a whitefish blastula slide from the Containers shelf and place it onto the microscope stage. Make the necessary adjustments to focus in on the cells.
Find at least one cell in this fish embryo to represent each of the phases below.
1. Interphase
2. Prophase
3. Metaphase
4. Anaphase
5. Telophase
Label your images of the specific cell phases. To do so, use the overlay tools at the top of the microscope’s viewscreen. Take a screenshot of each annotated image to upload and submit it later.
Watch the Mitosis video to see how the process of mitosis unfolds in the live cell. How does it compare to the static images in the microscope slides? Record your observations to reference later.
