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Viruses

Viruses
The size of viruses is usually measured in

nanometers
millimeters
centimeters
micrometers

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

immunity repressor
operon repressor
immunity operon
none of these

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

T4
T2
T6
all of these

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Viruses
Plant viruses may be cultivated in

tissue culture
cultures of separated cells
all of these
whole plants

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Viruses
Enveloped viruses have a __________ shape.

icosahedral
complex
roughly spherical
helical

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Viruses
The temperate phage that have no site specificity for insertion and may even be able to insert multiple copies of their DNA into a single bacterial chromosome is

λ DNA
Phage Mn
λ phage enzyme
Phage Mu

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