Name _________________________________________________________________ Date_______________ Period___
Meiosis Webquest
 Site 1: http://www.sumanasinc.com/webcontent/animations/biology.html
1. Click On Meiosis. Read the introduction. Explain the difference between sexual and asexual
reproduction. ________________________________________________________________________
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(Click to Animation)
2. DNA replication takes place when? __________________
3. Meiosis consists of two cell divisions: _________________ & __________________
4. The pairing of homologous chromosomes is called: ________________________
5. Crossing over points are called __________________
6. What happens in metaphase I ______________________________________________
7. What happens during anaphase I __________________________________________
8. In prophase II, each cells is [ diploid / haploid ] (circle)
9. In metaphase II, chromosomes line up in [ single | double ] file.
10. What happens during telophase II? _______________________________________
(Click to Conclusion).
11. Each of the four daughter cells produced by meiosis is [ identical / unique ]
(Click to Quiz)
12. With respect to meiosis, when does DNA replication occur? ____________________
13. When does crossing over occur? _________________
14. During which phase do chromosomes line up along the equator? __________________
15. During which phase does the nuclear membrane form around the chromosomes? _____________
 Site 2: http://sepuplhs.org/high/sgi/teachers/genetics_act3_sim.html
16. Click on the “compare” tab. Sketch the cells and their chromosomes in each phase of mitosis and
meiosis. Use colors or shading to differentiate between chromosomes.
Mitosis
Meiosis
Interphase
Interphase
Prophase I
Metaphase I
Anaphase I
Telophase I
Prophase
Prophase II
Metaphase
Metaphase II
Anaphase
Anaphase II
Telophase
Telophase II
 Site 2: PBS: Mitosis vs Meiosis
o
http://www.pbs.org/wgbh/nova/body/how-cells-divide.html
(Launch Interactive)
After viewing the animation, fill out the chart below, by placing a check in the box or boxes to indicate which
the event occurs in (some events might have checks for both mitosis and meiosis).
Mitosis
Meiosis
Somatic Cells
Sex Cells
Two Cell Divisions
Centrioles Produce Spindle Fibers
Chromosomes Pair Up
Cytokinesis
Two Cells are Produced
Four Cells are Produced
Products are Genetically IDENTICAL
Products are Genetically DIFFERENT
Based on your knowledge of mitosis and meiosis to answer the questions below as thoroughly as you can:
When does mitosis happen? Why do cells undergo mitosis?________________________________________
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When does meiosis happen? Why do cells undergo meiosis? ______________________________________
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