What is a dichotomous key

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1. What is a dichotomous key (strategy) and how is it used to identify microorganisms

2. Why is the Gram stain often used as the first step to identify an unknown (what information is derived from the Gram stain result)?

3. What bacterial aerotolerances produce a positive catalase result.

4. How is catalase detected in the catalase test? (state the reagent used to detect catalase AND what observation indicates a positive result

Reference no: EM132322046

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