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Microbiology

Microbiology
Coliform bacteria on fermentation of carbohydrates yields

lactic acid
formic acid
acetic acid
all of these

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Microbiology
Gram-negative bacterium is/are

Staphylococci
Clostridia
Escherichia
All of these

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Microbiology
Which of the following can readily kill Salmonellae?

Moist heat at 55°C for 1 hr
Moist heat at 55°C for 10 min
Moist heat at 55°C for 30 min
Moist heat at 55°C for 20 min

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Microbiology
In Yersinia pestis, capsule is best demonstrated in cultures grown at

25°C
37°C
29°C
45°C

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Microbiology
Traveller's diarrhea is caused by

entero invasive E. coli (EIEC)
enteropathogenic Escherichia coli (EPEC)
entero haemorrhagic E. coli (EHEC)
entero toxigenic E. coli (ETEC)

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Microbiology
Which of the following gram-negative bacteria is/are not aerobic?

Neisseria
Escherichia
Pseudomonas
None of these

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MORE MCQ ON Microbiology

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