Mitosis

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1. What does the number 2 represent?

• GAP 1
• S Phase
• GAP 2

2. What happens during that phase of the cell cycle?

• The cell grows
• The cell divides
• The cell copies its DNA

3. In the cell cycle, the steps 1, 2, and 3 together are known as:

• M Phase
• Interphase
• Cytokines

4. Which is NOT a reason for cells to divide?

• For growth and development of organisms
• Maintenance of cellular organelles
• Reproduction of single-celled organisms

5. Before a normal body cell goes through Mitosis, it must do all of the following EXCEPT:

• Grow in size
• Reduce the amount of its DNA
• Produce all extra material

6. At some stages of the cell cycle, DNA condenses into chromosomes by wrapping tightly around histone molecules. The main reason for this is so that:

• The DNA can be more easily sorted into daughter cells without breaking or tangling
• Proteins can be produced by the DNA more easily
• The chromosomes are easier to copy

7. A fruit fly’s sex cells contain 2 chromosomes. How many chromosomes are in the fruit fly’s body cells?

• 2
• 4

8. Which of the following statements is TRUE about Meiosis?

• Skin cells go through meiosis
• Meiosis produces two identical daughter cells
• The goal of meiosis is to produce sex cells

9. The centromere is a region in which

• Sister Chromatids remain attached to one another until anaphase
• Metaphase chromosomes become aligned at the metaphase plate
• The nucleus is located prior to mitosis