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Microbiology

Microbiology
Transmission of bubonic plague is by

inhalation
all of these
ingestion
rat flea

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Microbiology
The bacteria, which is more resistant to adverse environmental conditions, is

S boydii
S sonnei
S flexneri
S dysenteriae

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Microbiology
Blackening in pickles occurs due to

the formation of hydrogen sulfide by bacteria
None of these
growth of Pencillium
both (a) and (b)

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Microbiology
Which of the following property(ies), shown by the organisms belong(s) to the family Enterobacteriaceae?

They are catalase-positive
They are oxidase-negative
All of these
They ferment glucose

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Microbiology
The botulism intoxication occurs due to

mycotoxin
an enterotoxin
all of these
neurotoxin

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Microbiology
Heat-stable enterotoxin of Escherichia coli activates

guanylate cyclase
adenylate cyclase
both of the above
none of these

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