E-PolyLearning

66. Peptone water and nutrient broth are
a. selective media
b. enriched media
c. basal media
d. none of these
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Answer: (c).basal media

67. Stuart's transport medium is used for transport of specimen containing
a. Neisseria gonorrhoeae
b. Salmonella
c. Vibrio cholerae
d. Shigella
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Answer: (a).Neisseria gonorrhoeae

68. Plate counts are often reported as
a. cfu
b. cfu/ml
c. Both (a) and (b)
d. thousands/ml
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Answer: (b).cfu/ml

69. The medium which allows the growth of more than one microorganisms of interest but with morphologically distinguishable colonies is known as
a. selective medium
b. enrichment medium
c. differential medium
d. none of these
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Answer: (c).differential medium

70. Selective media facilitate growth of only one kind of organism. Saboraud medium is used to selectively isolate
a. coliform bacteria
b. gram positive bacteria
c. yeasts
d. acid fast organisms
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Answer: (c).yeasts