Gram-positive vs Gram-negative Bacteria – Difference and Comparison | Diffen

Danish scientist Hans Christian Gram devised a method to differentiate two types of bacteria based on the structural differences in their cell walls. In his test, bacteria that retain the crystal violet dye do so because of a thick layer of peptidoglycan a

Source: Gram-positive vs Gram-negative Bacteria – Difference and Comparison | Diffen

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