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1. (TCO 8) When a cell related to immunity activates only in reaction to a speci

ID: 42268 • Letter: 1

Question

1. (TCO 8) When a cell related to immunity activates only in reaction to a specific pathogen, it is called _____. (Points : 4) inducibility

clonality

lymphocytes

T lymphocytes

None of the above

2. (TCO 8) Viruses, intracellular bacteria, and certain parasites are examples of _____. (Points : 4)

exogenous antigens

cytokines endogenous

antigens

autoantigens

MHCs 3.

(TCO 7) All species of microbes lining the tooth surface and lining of cheeks and pharynx have been named. (Points : 4)

False

False, except for nematodes

True

True, except for nematodes

True, except for Actinomyces sp.

4.Which of the following statements about viruses and cancer is INCORRECT? (Points : 4)

Viruses are responsible for 20

Explanation / Answer

1. Clonality

2. exogenous antigens

3. True except for nematodes

4. Inactivation of oncogene repressors by viruses may lead to increased production of repressors and the development of cancer.

5. requires a pilus

6. bacteria fermenting the lactose in milk to form lactic acid and yeast fermenting sucrose to produce ethanol and CO2.