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Microbiology

Microbiology
Salmonellae can also be killed by

pasteurisation
all of these
chlorination
boiling

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Microbiology
The growth of black-pigmented Bacillus nigrificans, a causative agent of black pickle is favoured by

low level of available nitrogen
All of these
neutral or slightly alkaline brine
presence of carbohydrate like glucose

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Microbiology
Dysentery may be caused by

verotoxigenic E. coli
enteroinvasive E. coli
enterotoxigenic E. coli
enteropathogenic Escherichia coli

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Microbiology
Which of the following media is selective for Salmonella?

All of these
Wilson and Blair's brilliant-green bismuth sulphite agar medium
Bile salt agar
Thiosulphate citrate bile salt agar

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Microbiology
Enterobacter can be differentiated from Klebsiella by

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

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

Clostridia
Mycoplasmas
all of these
Pseudomonas

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