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Viruses From Animal and Plants

Viruses From Animal and Plants
The transcription of the viral nucleic acid into mRNA is not necessary in case of

RNA viruses
ss DNA viruses
all of these
ds DNA viruses

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Viruses From Animal and Plants
Transfer of infection from cell to cell occurs mainly by direct transfer of virions via

plasmodesmata
protodesmata
none of these
cytodesmata

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Viruses From Animal and Plants
What does the positive strand in double stranded RNA viruses stands for?

tRNA
mRNA
rRNA
None of these

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Viruses From Animal and Plants
Viropexis takes place in the phagocytic vacuoles and is due to the action of enzymes

lysosomal protease
lysosomal lipase
all of these
DNA gyrase

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Viruses From Animal and Plants
West Nile virus can cause a disease in human beings that may be transmitted from an infected bird to a person by a mosquito. This is an example of

nosocomial infection
fomite borne disease
arthropod borne disease
endogenous infection

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Viruses From Animal and Plants
Supercoiling refers to the extra turns in the structure of ds DNA due to the action of

RNA gyrase
RNA pyrase
DNA gyrase
DNA pyrase

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