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Questions and Answers
What does a positive result for the indole test indicate?
What does a positive result for the indole test indicate?
Which of the following tests results in a pink/red color upon a positive reaction?
Which of the following tests results in a pink/red color upon a positive reaction?
What color indicates a positive result for citrate utilization?
What color indicates a positive result for citrate utilization?
Which test would show a clear zone around bacterial growth after iodine is added?
Which test would show a clear zone around bacterial growth after iodine is added?
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In the methyl red test, a positive result is indicated by which color change?
In the methyl red test, a positive result is indicated by which color change?
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Which of the following tests confirms hydrogen sulfide production?
Which of the following tests confirms hydrogen sulfide production?
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What indicates a positive reaction for urease activity?
What indicates a positive reaction for urease activity?
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Which reaction produces a green color after adding ferric chloride?
Which reaction produces a green color after adding ferric chloride?
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What result would you expect from a positive catalase test?
What result would you expect from a positive catalase test?
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Which test is used to determine if an organism can utilize citrate as its sole carbon source?
Which test is used to determine if an organism can utilize citrate as its sole carbon source?
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Which organism is indicated by positive results in the methyl red and indole tests?
Which organism is indicated by positive results in the methyl red and indole tests?
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What indicates a positive result for the Voges-Proskauer test?
What indicates a positive result for the Voges-Proskauer test?
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What does a red layer after adding Kovac's reagent indicate in the indole test?
What does a red layer after adding Kovac's reagent indicate in the indole test?
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Which of the following tests reveals a clear zone around bacterial growth after iodine is added?
Which of the following tests reveals a clear zone around bacterial growth after iodine is added?
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Which color change is associated with a positive reaction for urea hydrolysis?
Which color change is associated with a positive reaction for urea hydrolysis?
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In which test would you expect to see a purple color within seconds?
In which test would you expect to see a purple color within seconds?
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What result indicates black precipitate formation in the medium?
What result indicates black precipitate formation in the medium?
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What is indicated by a clear zone around growth on spirit blue agar?
What is indicated by a clear zone around growth on spirit blue agar?
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What color indicates a positive reaction in the methyl red test?
What color indicates a positive reaction in the methyl red test?
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Which test discriminates between Escherichia coli and Enterobacter aerogenes?
Which test discriminates between Escherichia coli and Enterobacter aerogenes?
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In the Voges-Proskauer test, what color indicates a positive result?
In the Voges-Proskauer test, what color indicates a positive result?
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What is the indicative result for the citrate utilization test?
What is the indicative result for the citrate utilization test?
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Which of the following is a result from a positive catalase test?
Which of the following is a result from a positive catalase test?
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What do you expect to see in a positive indole test?
What do you expect to see in a positive indole test?
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A positive hydrogen sulfide production test is indicated by which result?
A positive hydrogen sulfide production test is indicated by which result?
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Which of these tests shows positive results with a clear zone around bacterial growth after specific reagent application?
Which of these tests shows positive results with a clear zone around bacterial growth after specific reagent application?
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Which test distinguishes Enterobacter aerogenes from Escherichia coli based on its ability to produce acetoin?
Which test distinguishes Enterobacter aerogenes from Escherichia coli based on its ability to produce acetoin?
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