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Identification of Bacteria

Identification of Bacteria
The primary stain of Gram's method is

safranin
phenolpthalene
methyl red
crystal violet

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Identification of Bacteria
What is the order of reagents used in the Gram stain?

Crystal violet, iodine, safranin, decolorizer
Crystal violet, iodine, decolorizer, safranin
Crystal violet, safranin, iodine, decolorizer
Safranin, crystal violet, decolorizer, iodine

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Identification of Bacteria
The gram-negative organisms is

None of these
Actinomyces
Clostridium
Bacillus

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Identification of Bacteria
Which of the following inference(s) indicate(s) the ability of an organism to utilize citrate as a sole source of carbon in Simmon's citrate medium?

Appearance of growth
None of these
Both (a) and (b)
Blue colour

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

Neisseria
Vibrio
Pseudomonas
All of these

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

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

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