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Microbiology

Microbiology
Transmission of bubonic plague is by

ingestion
inhalation
rat flea
all of these

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Microbiology
Enterobacter can be differentiated from Klebsiella by

both (a) and (b)
ornithine positivity
none of these
motility

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Microbiology
The milk streptococci produce acetoin that gets spontaneously oxidized yielding a flavorings agent (responsible for aroma of butter) that is

butyric acid
diacetyl
acetyl coA
acetone

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

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

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Microbiology
Too long a fermentation of sauerkraut may favour the growth of

Bacillus subtilis
Lactobacillus brevis
none of these
Lactobacillus lactis

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

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

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MORE MCQ ON Microbiology

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