Ras Is a GTP-Binding Protein That Is Often Defective in Cancer

question 27

Multiple Choice

Ras is a GTP-binding protein that is often defective in cancer cells.A common mutation found in cancer cells causes Ras to behave as though it were bound to GTP all the time, which will cause cells to divide inappropriately.From this description, the normal Ras gene is a/an

• A)tumor suppressor.
• B)oncogene.
• C)proto-oncogene.
• D)gain-of-function mutation.

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Definitions:

Prothrombin Time (PT)

A blood test measure that evaluates how long it takes blood to clot, primarily used to assess blood coagulation pathways.

Creatinine Kinase (CK)

An enzyme found in the heart, brain, skeletal muscle, and other tissues, used as a marker of muscle injury.

Reagent Strips

Test strips used to detect and measure various chemicals and substances in body fluids, often used for quick diagnostic results.

Quality Controls

Processes and procedures put in place to ensure the standards and integrity of products or services are maintained.