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Cell Cultures and Characteristics

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

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

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Cell Cultures and Characteristics
Mac-Conkey medium is an example of

differential medium
enrichment medium
transport medium
all of these

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Cell Cultures and Characteristics
For the selection of endospore-forming bacteria, a mixed culture can be heated at

60°C for 10 minutes
80°C for 10 minutes
70°C for 10 minutes
90°C for 10 minutes

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

enriched medium
differential medium
selective medium
enrichment medium

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

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

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Cell Cultures and Characteristics
The concentration of agar to obtain semi solid media is

0.5% or less
1.5-20%
>10%but<20%
>10%

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