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Microbiology

Microbiology
Prodigiosin (red pigment) is produced by members of genus

Enterobacter
Cirobacter
Hafnia
Serratia

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Microbiology
Arrange the potencies of toxin in descending order of the following canned foods

corn> string bean>peas>spinach
corn> spinach> peas>string beans
peas>string beans>spinach> corn
corn> peas>string beans>spinach

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Microbiology
Gram-positive bacteria, responsible for food poisoning, is/are

Mycoplasmas
all of these
Clostridia
Pseudomonas

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Microbiology
Blackening in pickles occurs due to

None of these
both (a) and (b)
growth of Pencillium
the formation of hydrogen sulfide by bacteria

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Microbiology
Which of the following is/are not a gram-positive bacteria?

Pseudomonas
None of these
Streptococci
Mycobacteria

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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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