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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