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Microbiology

Microbiology
Transmission of pneumonic plague from man to man is through

all of these
inoculation
ingestion
droplet infection

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Microbiology
Yersinia enterocolitica and Y. pestis can be differentiated on the basis of which of the following tests?

Decarboxylation of ornithine
Fermentation of sucrose and cellobiose
All of these
Motility at 22°C

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Microbiology
Abnormal fermentation of cabbage may result in a cheese like odour caused by

all of these
propionic acid
butyric acid
caprioc acid and Valeric acid

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Microbiology
Which of the following species/subspecies of Klebsiella produce indole?

K pneumoniae subspecies aerogenes
K pneumoniae subspecies rhinoscleromatis
K pneumoniae subspecies pneumoniae
K oxytoca

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Microbiology
A bacterial food intoxication refers to

both (a) and (b)
illness caused by presence of pathogens
None of these
food borne illness caused by the presence of a bacterial toxin formed in food

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Microbiology
Bacterial spoilage is identified by which of the following morphological characteristics?

All of these
Cell aggregation
Endospores
Encapsulation

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