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BSC 108 Lab 7 Mitosis and Meiosis Lab and Journal Worksheet (Alabama)

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BSC 108 Lab 7 Mitosis and Meiosis Lab and Journal Worksheet (Alabama)

Experiment 1 - Mitosis in Onion Root Cells

Experiment 2 - Mitosis in a Whitefish Blastula

Instructions: Answer the questions below, based on Experiments 1 - 2.

1. Why is it appropriate to view a whitefish cell from a blastula in early embryonic development instead of a cell from adult tissue?

2. Why must you observe the onion root tip instead of the main body of the onion?

3. Which distinguishing features allow you to identify cells in interphase?

4. Which distinguishing features allow you to identify cells in prophase?

5. Which distinguishing features allow you to identify cells in metaphase?

6. Which distinguishing features allow you to identify cells in anaphase?

7. Which distinguishing features allow you to identify cells in telophase?

8. Which stage of the cell cycle is the hardest to identify?

9. In which phase of the cell cycle do onion cells spend the most time?

10. In which phase of the cell cycle do onion cells spend the least time?

11. How do mitosis in a plant cell (onion) and mitosis in an animal cell (fish) differ?

12. Imagine you are comparing a microscope slide of normal human cells to a slide of cancerous human cells. What differences would you expect to observe between the two slides?

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