Grade 9 Cell Cycle Worksheet
A worksheet for Grade 9 science students covering the phases of the cell cycle, mitosis, and meiosis.
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Grade 9 Cell Cycle Worksheet
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Date:
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Read each question carefully and answer to the best of your ability. Show all your work where applicable.
1. Which phase of the cell cycle involves the replication of DNA?
Prophase
Metaphase
S phase
Telophase
2. What is the primary purpose of mitosis?
To produce gametes
To reduce chromosome number
To grow and repair tissues
To increase genetic diversity
3. The division of the cytoplasm is called .
4. During , sister chromatids separate and move to opposite poles of the cell.
5. Meiosis results in two diploid daughter cells.
True
False
6. Crossing over occurs during Prophase I of meiosis.
True
False
7. Briefly describe the main events of G1 phase in the cell cycle.
8. Explain the difference between homologous chromosomes and sister chromatids.
Match the phase of mitosis with its description.
9. Prophase
a. Chromosomes align at the metaphase plate
10. Metaphase
b. Sister chromatids separate
11. Anaphase
c. Chromatin condenses into visible chromosomes
12. Telophase
d. Nuclear envelopes reform around separated chromosomes