26. | Nichrome loop wire is used in which of the following techniques? |
a. | Pour-plate |
b. | Streak-plate |
c. | Spread-plate |
d. | Roll-tube technique |
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Answer: (b).Streak-plate
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27. | Which device is used to pick a single bacterial cell from a mixed culture? |
a. | microscope |
b. | micropipette |
c. | microprobe |
d. | micromanipulator |
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Answer: (d).micromanipulator
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28. | The National Collection of Type Cultures is situated in ____________ |
a. | France |
b. | England |
c. | Germany |
d. | Japan |
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Answer: (b).England
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29. | The American Type Culture Collection, located in Rockville, Maryland in the year 1980 has a collection of bacterial strain in what numbers? |
a. | 10,000 |
b. | 11,000 |
c. | 500 |
d. | 11,500 |
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Answer: (d).11,500
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30. | Which of the following has a larger diameter? |
a. | well-separated colonies |
b. | crowded colonies |
c. | young colonies |
d. | old colonies |
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Answer: (a).well-separated colonies
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