Which of the following genera of bacteria would NOT change the color of N,N,N',N'7' -tetramethyl-p-phenylenediamine to purple/black upon exposure?

Name: Which of the following genera of bacteria would NOT change the color of N,N,N',N'7' -tetramethyl-p-phenylenediamine to purple/black upon exposure?
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Question

Quizplus · Accepted Answer

Salmonella is oxidase-negative, meaning it does not produce the enzyme cytochrome c oxidase, which is responsible for the color change in the oxidase test.

Which of the Following Genera of Bacteria Would NOT Change