@biowithrafa: Ever wonder how labs tell E. coli apart from Salmonella? It’s all about lactose fermentation! MacConkey agar uses bile salts + crystal violet to stop Gram-positives, then neutral red to catch acid from sugar munchers. One plate, two colors, zero confusion. 🔬 this infographic created using zawa ai #Microbiology #biowithrafa #zawa #zawaai #biology

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Thursday 23 April 2026 17:11:12 GMT