Microbiology - Viruses

Exercise :: Viruses - Section 1

6. 

When a virus enters a cell but does not replicate immediately, the situation is called

A. lysogeny
B. fermentation
C. symbiosis
D. synergism

Answer: Option A

Explanation:

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7. 

Usually viruses are separated into several large groups based primarily on

A. nature of the host
B. nucleic acid characteristics
C. capsid symmetry
D. diameter of the viroin or nucleocapsid

Answer: Option A

Explanation:

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8. 

The first step in infection of a host bacterial cells by a phage is

A. adsorption
B. absorption
C. penetration
D. replication

Answer: Option A

Explanation:

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9. 

Which of the following viruses has not been associated with human cancer?

A. Hepatitis C virus
B. Hepatitis B virus
C. Varicella-Zoster virus
D. Herpes simplex virus type 2

Answer: Option C

Explanation:

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10. 

The viral nucleocapsid is the combination of

A. genome and capsid
B. capsid and spikes
C. envelope and capsid
D. capsomere and genome

Answer: Option A

Explanation:

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