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Cell Cultures and Characteristics

Cell Cultures and Characteristics
Which of the following methods is most likely to be quantitative?

Dilution and plating
Gram staining
Wet mount
None of these

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

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

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Cell Cultures and Characteristics
A disease producing species occurring in a mixed culture can often be selected on the basis of its

pathogenic properties
special carbon source
none of these
special nitrogen source

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

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

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Cell Cultures and Characteristics
Viable plate count can be obtained using

Pour plate method
Spread plate method
both (a) and (b)
Hemocytometer

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Cell Cultures and Characteristics
Pseudomonas aeruginosa forms a blue water soluble pigment called

chlororaphin
pyoverdin
pyocyanin
β-carotene

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