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Identification of Bacteria

Identification of Bacteria
The gram-negative organisms is

None of these
Clostridium
Actinomyces
Bacillus

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Identification of Bacteria
The deinococci are gram-positive cocci and rods that are distinctive in their unusually great resistance to

both (a) and (b)
extreme temperatures
radiation
desiccation

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Identification of Bacteria
What is the colour of gram-negative bacteria on a gram staining?

Colourless
Purple
Green
Pink

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Identification of Bacteria
The process of Gram staining is based on the ability of bacterial cell wall

none of above
to retain the safranin dye
to retain the crystal violet dye during solvent treatment.
to retain part of both dyes

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Identification of Bacteria
Production of acetoin can be detected by which of the following tests?

Citrate test
Indole test
Methyl red test
Voges-Proskauer test

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Identification of Bacteria
Which of the following(s) is/ are oxidase-positive bacteria?

All of these
Neisseria
Pseudomonas
Vibrio

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