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Viruses

Viruses
Enveloped viruses have a __________ shape.

icosahedral
helical
roughly spherical
complex

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Viruses
The most popular indirect method of counting virus particles is by

plaque-assay
colony counting
counting plaque-forming units
hemagglutination assay

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Viruses
Which of the following virus is susceptible to chloroform?

Measles
Herpes
Influenza
All of these

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Viruses
Reverse transcriptase is a useful enzyme to have when

there are no host cells present
spikes are forming in the new virus
nutrients are scarce
an RNA virus converts its RNA to DNA

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Viruses
The viral nucleocapsid is the combination of

genome and capsid
capsid and spikes
capsomere and genome
envelope and capsid

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Viruses
Which of the following is an example of rod-shaped viruses having their capsomeres arranged helically and not in the stacked ring?

Bateriophage M13
Bateriophage T4
Bateriophage T2
Bateriophage MV-L2

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