Name _____________________________________
Subject __________________, Period ____ Teacher __________________
Texas High School
Date ____________
Lab Worksheet – The Great Divide
Draw a cell from under the microscope showing each phase of mitosis.
Interphase
Anaphase
Prophase
Metaphase
Telophase
Observations:
Interphase
1. Are a nucleolus and nuclear membrane present? _______________________
2. Are distinct rod-shaped structures called chromosomes easily observed in the nucleus at this
time?
Prophase
3. Are chromosomes visible during prophase? _______________
4. Describe changes that have occurred to the nucleolus and nuclear membrane from interphase to
prophase.
Metaphase
5. Describe where the chromosomes are in relation to the cell.
6. Can evidence of chromosome duplication (replication) be observed?
7. Do you see a nuclear membrane?
8. Are spindle fibers present?
Anaphase
9. What evidence can now be observed to support the fact that the chromosomes have duplicated
(replicated)?
10. Toward what area of the cell are the chromosomes being directed?
11. Can you see two distinct sets of chromosomes?
12. Does it look like the number of chromosomes at one side of the cell is equal to the number at the
other side?
Telophase
13. How many cells have now formed from an original cell?
14. Are the two new cells alike?
15. How does mitosis in the animal cell differ from mitosis in plant cells?
Analysis
16. What important event happens during interphase?
17. Explain why distinct chromosomes can be seen in prophase?
18. What term is used to describe the structure to which each fiber attaches to a chromosomes?
19. Explain how the number of chromosomes found in each daughter cell compares to the number
found in the original call.
20. What is the difference between mitosis in plants and animals?