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PTECH Microbiology QUESTION #3353
Question 1
'Mordant' (like Iodine in Gram stain) functions to:
  • Wash away the dye
  • Fix or intensify the stain in the cell✔️
  • Kill the bacteria
  • Make the slide shiny
Correct Answer Explanation
Iodine forms a complex with crystal violet that is too large to leave the peptidoglycan easily.