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What is the purpose of the mordant? Increases the number of colonies grown during incubation Dilutes...

What is the purpose of the mordant?

Increases the number of colonies grown during incubation

Dilutes the sample

Iodine complexes the crystal violet to the peptidoglycan layer

All of the above

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Answer: Iodine complexes the crystal violet to the peptidoglycan layer.

( The iodine get stick to the gram positive bacteria due to the peptidoglycan layer. It leads in identification of the gram negative bacteria.)

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