1 Which of the following proteins levels change over the cou

1. Which of the following protein’s levels change over the course of the cell cycle in a noncancerous cell?

a. cyclin

b. cdk

c. Rb

d. both cyclin and cdk

e. Rb and cdk

4. If a person inherits one copy of a mutated tumor suppressor gene, they have nearly 100% chance of getting cancer. Explain how this happens.

Solution

1. There are different cycllins and their levels change through the course of cell cycle. So A is the answer.

Cdk remain constant.

2 most tumor suppression genes are acquired but not inherited. In this case as one copy of mutated gene is inherited there are nearly 100% chances to get cancer.example is rb gene which was the first tumor suppressor gene identified.

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