AP Biology
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Homework: Chapter 12 and 13
Due: Wednesday, December 20, 2019
1. Explain how cell division in prokaryotes differs from cell division in eukaryotes. [5]
2. Describe the structure of eukaryotic chromosomes. [5]
3. Define the following terms and describe how they relate to one another.
a. Chromosome
b. Chromatid
c. Centromere
d. Chromatin
4. Explain the interactions of cyclins and CDKs (Cyclin-Dependent kinases) in the regulation of mitosis. [5]
5. Explain the three main checkpoints that regulate the cell cycle. [6]
6. Compare and contrast mitosis and meiosis. [6]
7. Outline the following events that occur during prophase I of meiosis: [6]
a. Synapsis
b. Tetrad Formation
c. Crossing Over
8. Explain how meiosis provides for greater genetic diversity. [6]
9. The cell cycle is fundamental to the reproduction of eukaryotic cells.
(a) Describe the phases of the cell cycle. Be sure to describe what happens in each
phase. [4]
(b) Explain the role of the following in mitosis or cytokinesis. [4]
• Kinetochores
• Microtubules
• Cell Plate
• Centrioles
(c) Describe how the cell cycle is regulated and discuss ONE consequence of
abnormal regulation. [3]
10. What is the source of HeLa cells? How old are they?
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