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Viruses

Viruses
Viruses require __________ for growth.

living cells
plants
animals
bacteria

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Viruses
Group E phages have

double stranded DNA
single stranded DNA
double stranded DNA
single stranded RNA

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Viruses
Which of the following is not true of virions?

Contain RNA
Reproduce independently
Are extracellular
Contain DNA

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

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

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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 T2
Bateriophage MV-L2
Bateriophage T4

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Viruses
The most complex type of bacterial viruses having hexagonal head, a rigid tail with a contractile sheath and tall fibers is morphologically classified as

D
B
A
C

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