Mitosis Assignment

Name:______

1.  Draw a sketch of the human body. Below the sketch, list 5 areas of the body in which you think cell division is most rapid. Why do you think cells in these areas divide most rapidly? [Eventually check you answer against research to verify your answer] [5]

2.  What is meant by the term Cell Specialization? [1]

3.  Why is cell division important? [3]

4.  Why is the division of the nuclear material necessary during cell division? [1]

5.  How do the new cells formed during cell division compare with the initial cell? [1]

6.  A human cell has 46 chromosomes. After the cell has undergone mitosis, how many chromosomes would you expect in each cell? [1]

7.  Following Telophase and Cytokinesis, the single strands of genetic material duplicate. Why is the duplication of the genetic material important to the cell? [1]

8.  What is the longest stage of the cell cycle for the average cell? [1]

9.  Explain why different kinds of cells in the body might live for different lengths of time. [1]

10.  At which time of year would mitosis in a plant occur most frequently? Explain why? [1]

11. Some drugs that combat cancer inhibit mitosis. What effect might this have on healing times? [1]

12.  Describe the daughter cells that would be formed if during mitosis, all of the chromosomes lined up on one side of the equator instead of along the equator. Do you think either daughter cell would be viable? Explain your answer. [2]

13.  When you cut the tip of a finger, a scab forms and new skin appears underneath the scab. If you cut your finger deeply enough, however, it may take a long time to regain the feeling at the tip of your finger. Use your understanding of the cell cycle to explain these observations. [1]

14.  How do daughter cells compare genetically to parent cells? [1]

15.  A scientist studying a group of somatic cells notices that when the cell cycle is complete, half of the daughter cells have no chromosomes and the other half have 92 chromosomes. In what phase of mitosis did an error most likely occur. Explain. [1]

16.  The image below shows chromosomes in a human cell.

a.  What is this representation called? [1]

b.  Identify the sex of the individual. [1]

c.  Does this individual have the correct number of chromosomes? [1]