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Elliott & Elliott: Biochemistry and Molecular Biology 4e

Chapter 31

Instructions

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Question 1

In order to enter the cell cycle a cell must be stimulated from outside. What type of molecule provides this stimulation?

Question 2

In which phase of the cell cycle is DNA replicated?

Question 3

The passage of a cell through the stages of the cell cycle is controlled by protein kinases which phosphorylate many different proteins at appropriate times. What are these protein kinases called?

Question 4

Which of the following is not a characteristic of the cyclins involved in the cell cycle?

Question 5

At which cell cycle checkpoint is the cell cycle halted if the cell's DNA is damaged?