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Microbiology

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

Pseudomonas
Mycoplasmas
all of these
Clostridia

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Microbiology
Cloudiness of brine of glass-packed olives may be caused by

salt-tolerant bacteria
All of these
film yeasts or moulds if air is available
the lactics if fermentation of residual sugar resumes

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Microbiology
Gassy spoilage of green olives is usually caused by

Bacillus spp
Clostridium spp
Enterobacter spp
all of these

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Microbiology
Which of the following is the commonest species of Salmonella for causing zoonotic disease?

S Indiana
S typhimurium
S enteritidis
S newport

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Microbiology
The reaction(s) that is/are usually positive in Escherichia coli, is/ are

All of these
Methyl red reaction
Indole reaction
Glucose fermentation

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Microbiology
Blackening in pickles occurs due to

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

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MORE MCQ ON Microbiology

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