The reaction(s) that is/are usually positive in Escherichia coli, is/

1.	The reaction(s) that is/are usually positive in Escherichia coli, is/ are
A.	Glucose fermentation
B.	Indole reaction
C.	Methyl red reaction
D.	All of these
Answer» E.

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The reaction(s) that is/are usually positive in Escherichia coli, is/ are

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