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Why some bacteria stain positive and some stain negative?

User Vikasmk
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6 votes

Answer:

Due to differences in the thickness of a peptidoglycan layer in the cell membrane between Gram positive and Gram negative bacteria, Gram positive bacteria (with a thicker peptidoglycan layer) retain crystal violet stain during the decolorization process.

Step-by-step explanation:

I looked it up.

User Eumel
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