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Microbiology

Microbiology
Bacteria are

symbiotic
hyper parasitic
saprophytic
all of these

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Microbiology
Which of the following(s) bacteria belong to the family Entero-bacteriaceae?

Yersinia
All of these
Salmonella
Shigella

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Microbiology
The most important bacterium developing acidity in both low and high salt brines is

L. plantarum
B. subtilis
L. lactis
L. brevis

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Microbiology
The reaction(s) that is/are usually positive in Escherichia coli, is/ are

Indole reaction
Methyl red reaction
All of these
Glucose fermentation

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Microbiology
In Widal test the significant titres for H agglutinins is

1:200 or more
1:50 or more
1:100 ormore
1:400 or more

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Microbiology
Hollow pickles are obtained as a result of

loose packing in the vat
none of these
too strong or too weak brine
both (a) and (b)

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