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Cell Cultures and Characteristics

Cell Cultures and Characteristics
In the pour plate method, the mixed culture is diluted directly in tubes of

none of these
both (a) and (b)
liquid agar medium
sterile liquid usually water

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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
8.90
3.5

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Cell Cultures and Characteristics
Which of the following bacteria can grow in alkaline pH?

Salmonella
Shigella
Lactobacilli
Vibrio cholerae

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

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

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Cell Cultures and Characteristics
Intestinal bacteria can grow in the presence of __________ whereas nonintestinal bacteria are usually inhibited.

sugars
low levels of nitrogen
bile salts
low concentration of various dyes

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Cell Cultures and Characteristics
The solidifying agent commonly used in preparation of media is/are

agar
none of these
both (a) and (b)
silica gel

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