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The medium which allows the growth of more than one microorganisms of interest but with morphologically distinguishable colonies is known as

  • A.selective medium
  • B.enrichment medium
  • C.differential medium
  • D.none of these

Answer: C

Correct answer: differential medium

A differential medium lets several organisms grow but makes them look different - through a fermentable sugar and a pH indicator, or through haemolysis on blood agar. A selective medium, by contrast, stops the unwanted organisms growing at all.

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