Name: _______________________________________
Date: _____________________
Period: _____
Mitosis and Meiosis
Introduction: Mitosis results in the production of two genetically identical
diploid cells. Meiosis results in 4 new cells, each containing a haploid
number of chromosomes than the original cells. Using your notes on mitosis
and meiosis, you will explore how it can lead to genetic changes.
Procedure: Please answer in complete sentences, and then fill out the comparison charts.
1. Summarize the purpose of mitosis and meiosis.
2. Describe what happens during interphase. Indicate whether or not, this is a part of
mitosis/meiosis.
3. Describe what happens during cytokinesis. Indicate whether or not, this is part of mitosis/meiosis.
4. Contrast cytokinesis in plant and animal cells.
5. What is the result of the first meiotic division (meiosis I)?
6. How is this result different than the division in mitosis?
7. What is the result of the second meiotic division (meiosis II)?
8. How is this result different than the division in mitosis?
9. How does meiosis lead to increased genetic variation?
10. Does mitosis lead to increased genetic variety? Explain why or why not.
11. How would the gametes be affected if a pair of chromatids failed to separate in the second meiotic
division?
12. Explain the difference between a diploid and haploid cell.
13. Which cells perform mitosis? Meiosis?
1
Name: _______________________________________
Period: _____
Date: _____________________
14. What is the difference between asexual and sexual reproduction? How does cell division relate to
this?
Compare and Contrast Mitosis and Meiosis
Mitosis
Meiosis
Number of divisions
DNA duplicated once
DNA duplicated twice
Crossing over occurs
Homologous pairing occurs
Daughter cells are diploid
Daughter cells are haploid
Number of daughter cells
Compare and Contrast Meiosis I and Meiosis II
Meiosis I
Meiosis II
Number of divisions
Number of phases
DNA duplicated
Crossing over occurs
Homologous pairing occurs
How do chromosomes line
up down the center of the
cell?
Chromosomes are pulled
apart in duplicated pairs
Chromosomes are pulled
apart in single chromatids
Number of daughter cells
2