Biology for IGCSE & O level - Biological Molecules (Section 5 - No. 12)
Which of the following statements correctly describe the structure of DNA?
DNA is a single-stranded molecule.
The two strands of DNA are held together by hydrogen bonds.
The bases in DNA are always paired in the same way (A with T, C with G).
DNA has a double helix structure.
Explanation
DNA has a double helix structure, with strands held together by hydrogen bonds and base pairing rules.
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