Chapter 12 Homework Questions

1. What is the difference between somatic cells and gametes?

2. What are the phases of the cell cycle? In which phase does the cell spend most of its time? In which phase does DNA replication take place?

3. What are the phases of mitosis?

4. What are spindle fibers made from?

5. Draw a diagram of a chromosome and label the various parts?

6. Who is Elizabeth Blackburn and what is relationship to chromosome structure and replication?

7. What is the relationship between a centromere and a kinetochore?

8. What is the difference between cell division in eukaryotes and prokaryotes?

9. Draw a graph in which the x-axis is the cell cycle stages (time) and the y-axis is DNA content of the cell.

10. Who is Leland Hartwell and what did he discover relative to the cell cycle?

11. Who is Leland Hartwell and what did he discover relative to the cell cycle? What tool did he use to study this process

12. What is a cyclin-dependant kinase and how do they work?