Exercise: Viruses From Animal And Plants

Questions for: Viruses From Animal And Plants

Viral matrix proteins are
A:
exposed on the surface of the virus
B:
found mainly on naked viruses
C:
anchor the envelope of enveloped viruses
D:
part of the nucleoprotein core of viruses
Answer: C
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Fluorescence microscopy can be used for the diagnosis of
A:
Subacute sclerosing panencephalitis
B:
Herpes simplex encephalitis
C:
Rabies
D:
All of these
Answer: D
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Which type of interferon is produced by virus-infected cells?
A:
α
B:
β
C:
Both (a) and (b)
D:
None of these
Answer: C
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The nucleocapsid is covered by an outer membrane like structure called
A:
envelope
B:
covering
C:
membronocapsid
D:
all of these
Answer: A
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Influenza virus undergoes antigenic shift resulting in major antigenic changes by which of the following mechanisms?
A:
Somatic recombination of heavy and light chains
B:
Expression of several different capsule types
C:
Changing the receptor binding canyon that docks with the host receptor
D:
Reassortment of RNA segments from different influenza viruses
Answer: D
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