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Microbiology

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

Serratia
Enterohacter
Citrobacter
all of these

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Microbiology
Slippery pickles occur due to

growth of encapsulated bacteria
broken scums of film yeasts on the surface of brine
addition of high amount of salt
both (a) and (b)

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Microbiology
Floaters or bloaters may result from

hetero fermentative lactic acid bacteria
gas being formed by yeasts
hollow cucumbers
all of these

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Microbiology
Which of the following bacteria is/are known as coliform bacilli?

Enterobacter
Klebsiella
Escherichia
All of these

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Microbiology
Slimy or ropy kraut is caused by

encapsulated varieties of Lactobacillus brevis
encapsulated varieties of Lactobacillus plantarum
Lactobacillus lactis
None of these

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Microbiology
Which of the following toxin causing botulism is less toxic to human beings?

Type A
Type C
Type B
None of these

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