Biology PYQ 17 of 227 · Biomolecules & DNA/RNA

Who had proposed for the first time the double helix model of DNA?

  1. AWatson and Crick
  2. BFisher and Haldane
  3. CLamarck and Darwin
  4. DHugo de Vries

UPPSC 2012

Show answer and explanation

Correct answer: (a) Watson and Crick

Explanation

James Watson and Francis Crick proposed the double-helix model of DNA in 1953, with help from Maurice Wilkins.

They shared the Nobel Prize (1962) for revealing the molecular structure of DNA, the hereditary material.

The distractors are evolution figures: Lamarck and Darwin proposed theories of evolution, while Hugo de Vries gave the mutation theory.

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