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Viruses

Viruses
Viruses require __________ for growth.

bacteria
animals
plants
living cells

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Viruses
Lysozyme (an endolysin) which will lyse the bacterial cell, releasing the mature virions is present in

late genes
all of these
immediate early phage genes
delayed early genes

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Viruses
Which of the following bacteriophage is said to have banal symmetry?

T4
T2
all of these
T6

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

lysogeny
fermentation
symbiosis
synergism

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Viruses
The time from infection until lysis is called as

latent period
burst size
eclipse period
rise period

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Viruses
The repressor protein, since the cell is resistant to lysis from externally infecting phage, is also called

immunity repressor
none of these
operon repressor
immunity operon

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