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Microbiology

Microbiology
Bacteria are

saprophytic
hyper parasitic
symbiotic
all of these

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Microbiology
Soft pickles are made so by pectolytic enzymes mostly from

none of these
yeasts
bacteria
moulds

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

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

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Microbiology
Which of the following media is selective for Salmonella?

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

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Microbiology
Selective media for the isolation of Shigella is

All of these
Hektoen enteric agar
Xylose lysine deoxycholate agar
Salmonella-Shigella agar

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Microbiology
Which of the following gram-positive bacteria causes pharyngitis (sore throat)?

Neisseria
Streptococcus
Staphylococcus
Mycobacterium

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