The metabolic reactions are shown by different bacteria help in the identification and classification of bacteria, which of the following biochemical tests show a negative result for Escherichia Coli?

Q. The metabolic reactions are shown by different bacteria help in the identification and classification of bacteria, which of the following biochemical tests show a negative result for Escherichia Coli?

  1. Lactose
  2. Indole
  3. Citrate
  4. Glucose

Answer: Citrate

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