When Ras Is Activated, Cells Will Divide

question 52

Multiple Choice

When Ras is activated, cells will divide.A dominant-negative form of Ras clings too tightly to GDP.You introduce a dominant-negative form of Ras into cells that also have a normal version of Ras.Which of the following statements is TRUE?

• A)The cells you create will divide less frequently than normal cells in response to the extracellular signals that typically activate Ras.
• B)The cells you create will run out of the GTP necessary to activate Ras.
• C)The cells you create will divide more frequently compared to normal cells in response to the extracellular signals that typically activate Ras.
• D)The normal Ras in the cells you create will not be able to bind GDP because the dominant-negative Ras binds to GDP too tightly.

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Definitions:

Intubated

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Ventilator

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The visible dip at the top of the sternum between where the collarbones meet at the base of the neck.

Tracheostomy Tube

A tube inserted through a surgically created hole in the front of the neck and into the trachea to aid in breathing.