NEET Biology Biological Classification And System Of Classification / जैविक वर्गीकरण और वर्गीकरण की प्रणाली Sample Paper Self Evaluation Test - Biological Classification

  • question_answer
    Gram-negative cells stain pink because:

    A)  they have specialised lipids in their cell walls.

    B)  their peptidoglycan layer is thin.

    C)  their peptidoglycan layer is thick.

    D)  they are receptive to antibiotics.

    Correct Answer: B

    Solution :

    Their peptidoglycan layer is thin and does   not retain crystal violet stain like Gram- positive bacteria do.


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