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This about cell wall of gram-positive bacteria is true

  • A.cell wall comprises of many layers
  • B.the cell wall is thicker than the associated gram-negative bacteria
  • C.Cell wall comprises of teichoic acids
  • D.All of the above

Answer: D

Correct answer: All of the above

All three describe the gram-positive wall: it is built of many layers of peptidoglycan, is much thicker than the gram-negative wall, and contains teichoic acids threaded through it. Those layers are what hold the crystal violet-iodine complex against decolourisation.

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