According to Wilkins' X-ray diffraction analysis, what is the diameter of the DNA double helix?

Biology Mcqs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Biology Mcqsbiology-mcqs
Published
2 Jul 2021
Last updated
28 May 2026

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Explanation

Wilkins' X-ray diffraction studies determined that the DNA helix has a diameter of approximately 20 angstroms, which is equivalent to 2 nanometers.

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