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Multiple Choice: 1. Ras.... a. Is a GTPase that is activated upon binding of mit

ID: 45558 • Letter: M

Question

Multiple Choice:

1. Ras....

a. Is a GTPase that is activated upon binding of mitogen to its receptor

b. Activates a kinase cascade leading to cell division and proliferation.

c. Would be expected to undergo a gain of function mutation in oncogenesis

d. A, B, and C

2. After a cell passes Restriction Point/START

a. Its progress into S phase becomes dependent on the presence of growth factors/mitogens

b. Its Rb becomes phosphorylated for the first time

c. The phosphorylation of its Rb is carried out by S-cyclin/cdk

d. A, B, and C

3. What is the

Explanation / Answer

1. d

2. .a

3. a