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Microbiology

Microbiology
Primarily human pathogenic bacteria is/are ,

Salmonella typhi
all of these
S paratyphi A
S paratyphi B

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

45°C
29°C
37°C
25°C

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Microbiology
Heat-labile enterotoxin of Escherichia coli activates

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

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Microbiology
Coliform bacteria on fermentation of carbohydrates yields

lactic acid
acetic acid
all of these
formic acid

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Microbiology
The bacteria which produce(s) β-galactosidase is/are

all of these
Citrobacter
Enterohacter
Serratia

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Microbiology
Hollow pickles are obtained as a result of

loose packing in the vat
none of these
too strong or too weak brine
both (a) and (b)

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