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Microbiology

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

Citrobacter
Enterohacter
Serratia
all of these

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Microbiology
Heat-labile enterotoxin of Escherichia coli activates

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

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Microbiology
Which of the following serotypes of Salmonella can cause gastroenteritis?

S newport
S enteritidis
S typhimurium
All of these

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Microbiology
Salmonellois is caused by the

endotoxin of Salmonella spp
neurotoxin of Salmonella spp
enterotoxin of Salmonella spp
exoenterotoxin of Salmonella spp

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Microbiology
The most common cause of urinary tract infection in the community is

Escherichia coli
Citrobacter freundii
Proteus vulgaris
Klebsiella pneumoniae

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Microbiology
Soft pickles are made so by pectolytic enzymes mostly from

moulds
yeasts
none of these
bacteria

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