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Identification of Bacteria

Identification of Bacteria
The gram-negative organisms is

Bacillus
None of these
Actinomyces
Clostridium

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Identification of Bacteria
Catalase production is negative in which of the following?

Streptococcus
Proteus
Staphylococcus
Salmonella

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

Pseudomonas
Neisseria
Vibrio
All of these

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

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

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

phenolpthalene
safranin
crystal violet
methyl red

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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?

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

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