Multiple choice

Which of the following is/are example(s) of both selective media as well as differential media?

  1. Nutrient Agar
  2. Mannitol Salt Agar
  3. MacConkey agar

  1. Only 1

  2. Only 2

  3. Only 3

  4. Only 1 and 2

  5. Only 2 and 3
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Mannitol salt agar is both a selective and differential media used for the isolation of pathogenic Staphylococci from mixed cultures. MacConkey’s Agar is both a selective and differential media. It is selective for Gram-negative bacteria and can differentiate those bacteria that have the ability to ferment lactose.

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