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Cell Cultures and Characteristics

Cell Cultures and Characteristics
Which of the following chemotherapeutic agents may affect the growth of Campylobacter jejuni?

Polymyxin
None of these
Vacomycin
Trimethoprim

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Cell Cultures and Characteristics
A medium containing crystal violet dye plus sodium deoxycholate will allow

aquatic bacteria to grow
none of these
gram (+)ve intestinal bacteria to grow
gram (-)ve intestinal bacteria to grow

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Cell Cultures and Characteristics
When a substance is added to a solid medium which inhibits the growth of unwanted bacteria but permits the growth of wanted bacteria, it is known as

enrichment medium
enriched medium
selective medium
differential medium

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Cell Cultures and Characteristics
Which of the following hint(s) suggest/s that a given specimen is likely to contain anaerobic bacteria?

Foul odour
All of these
Gas in specimen
Presence of sulphur granules

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Cell Cultures and Characteristics
Treponema species from human oral cavity can be selected by using

all of these
cell size and motility
incubation temperature
pH of the medium

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Cell Cultures and Characteristics
To select cholera-causing bacterium, Vibrio cholerae, the pH of the medium is maintained at a pH of

8.5
6.79
3.5
8.90

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