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    Question

    Which component forms the backbone of a DNA molecule?

    A Phosphate group Correct Answer Incorrect Answer
    B Nitrogenous base Correct Answer Incorrect Answer
    C Sugar molecule Correct Answer Incorrect Answer
    D Hydrogen bonds Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    The phosphate groups in nucleotides form the backbone of the DNA molecule. They link the sugar molecules together, creating a sturdy structure for the DNA double helix.

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