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Microbiology

Microbiology
Bacteria are

symbiotic
saprophytic
all of these
hyper parasitic

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Microbiology
Botulism is caused by the presence of toxin developed by

none of these
Clostridium sporogenes
Clostridium tyrobutyricum
Clostridium botulinum

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Microbiology
Species of Shigella which is predominant in India is

S dysenteriae
S sonnei
S boydii
S flexneri

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Microbiology
The bacteria, which is more resistant to adverse environmental conditions, is

S flexneri
S boydii
S sonnei
S dysenteriae

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Microbiology
Slippery pickles occur due to

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

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Microbiology
The favouring conditions for floaters is

both (a) and (b)
thick skin that does not allow gas to diffuse out
none of these
high intial amounts of salt

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MORE MCQ ON Microbiology

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