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State PCS PYQPrelims 2018

UPPCS · Question 61

Double-helical structure of DNA was given by whom?

  1. Jacob and Monod
  2. Watson and Crick
  3. H.G. Khorana
  4. None of the above
Show answer & explanation

Answer: (B) Watson and Crick

Explanation

James Watson and Francis Crick proposed the double-helix model of DNA in 1953, using X-ray data from Rosalind Franklin and Maurice Wilkins.