The Gram-staining procedure is an example of ________.

A. simple staining
B. fluorescent staining
C. differential staining
D. negative staining


Answer: C

Biology & Microbiology

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Irradiation of foods

A. involves the use of gamma radiation. B. is used on all foodstuffs. C. changes the taste of foods. D. is not regulated by the government. E. involves the use of gamma radiation, changes the taste of foods AND is not regulated by the government.

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Segments of DNA that can move from one place to another within a cell’s genome are called ____

a. target sites b. transposases c. transposable elements d. replicative factors e. release factors

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What is the final electron acceptor in the electron transfer chain?

a. water b. oxygen c. ADP d. FAD

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During muscle contraction, the ______ of the sacromere becomes narrower.

A. A band B. I band C. M band D. two of the above

Biology & Microbiology