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Microbiology

Microbiology
Transmission of bubonic plague is by

ingestion
rat flea
all of these
inhalation

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Microbiology
Gram-negative bacteria, responsible for food poisoning, is/are

Clostridia
None of these
Pseudomonas
Salmonella

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Microbiology
The gram-positive bacteria lack __________ structure/component?

outer membrane
teichoic acid
murein
plasma membrane

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Microbiology
Heat-labile enterotoxin of Escherichia coli activates

none of these
guanylate cyclase
both (a) and (b)
adenylate cyclase

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Microbiology
Botulism is caused by the presence of toxin developed by

Clostridium sporogenes
Clostridium botulinum
none of these
Clostridium tyrobutyricum

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Microbiology
Heat-stable enterotoxin of Escherichia coli activates

guanylate cyclase
both of the above
adenylate cyclase
none of these

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