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Microbiology

Microbiology
The gram-positive bacteria lack __________ structure/component?

teichoic acid
murein
plasma membrane
outer membrane

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Microbiology
The application of Gamma rays destroys botulism toxin. The dose of gamma rays required for this purpose is

73 Gy
73 Rad
7.3 Mrad
173 Rad

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

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

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Microbiology
Species of Shigella which is predominant in India is

S flexneri
S sonnei
S dysenteriae
S boydii

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

Methyl red reaction
Indole reaction
All of these
Glucose fermentation

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Microbiology
The elimination of the scum of yeasts in the brine during the fermentation include

addition of the mustard oil
all of these
addition of the sorbic acid
agitation of the surface

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MORE MCQ ON Microbiology

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