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30-06-2020
Biology

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In urease test we use indicater phynol red but bacteria positive appear as a pink color. why?

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ofori46 ofori46

30-06-2020

Answer:

urease test media contains 2% urea and phenol red as an indicator.An increase inPH due to the production of ammonia results in a color change from yellow (ph6.8) to bright pink (ph8.2).

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