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Microbiology

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

all of these
Enterohacter
Citrobacter
Serratia

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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
173 Rad
7.3 Mrad

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Microbiology
The Bacillus cereus causes gasteroenteritis by the production of an exoenterotoxin which is released in food as a result of

cell damage
cell permeation
cell autolysis
cell growth

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Microbiology
Which of the following is the commonest species of Salmonella for causing zoonotic disease?

S newport
S typhimurium
S Indiana
S enteritidis

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

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

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Microbiology
Which of the following is a food infection?

Botulism
Salmonellois
Staphylococcal intoxication
None of these

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