Chemical Constituents of Cells · NCERT Biology

The 'Primary Structure' of a protein refers to:

  1. The 3D folding of the chain
  2. The sequence of amino acids
  3. The presence of alpha-helices
  4. The assembly of multiple subunits
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Correct answer: The sequence of amino acids

The primary structure is the linear sequence of amino acids in a polypeptide. It dictates the identity of the first, second, and subsequent amino acids in the chain.

Difficulty: Medium Question 11 of 20

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