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Microbiology

Microbiology
The enzyme, which hydrolyses the murein is

none of these
tannase
perxoidase
lysozyme

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

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

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

all of these
Serratia
Enterohacter
Citrobacter

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Microbiology
Xylose lysine deoxycholate (XLD) agar is better selective medium than the deoxycholate citrate agar (DCA) because

it is less inhibitory to S. Dysentriae and S. flexneri
it contains high salt concentration
it imparts better growth
it is selective

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Microbiology
Sylvatic plague occurs in

mice
all of these
squirrels
chipmunks

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Microbiology
Soft pickles are made so by pectolytic enzymes mostly from

bacteria
yeasts
none of these
moulds

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