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Viruses

Viruses
Virus reproduces in living cells by

duplication
replication
multiplication
all of these

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Viruses
A change from lysogeny to lysis is generally induced by

chemicals
ultraviolet light
all of these
irradiation

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Viruses
The viral DNA is removed from the host's chromosomes and the lytic cycle occurs. The process is called

inductive infection
spontaneous induction
spontaneous infection
resultant induction

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Viruses
Which of the following disinfectant is effective against viruses?

Hypochlorite
Hydrogen peroxide
All of these
Formaldehyde

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

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

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Viruses
The lysogenic state is governed by the activity of the regulatory region of the lambda phage genomes; this region is termed as

immunity repressor
operon repressor
immunity operon
none of these

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