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Q107 (NDA-I/2025) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Organic chemistry basics Answer Verified

A chain of peptide containing linear sequences of amino acid linked by peptide bonds best represent the

Result
Your answer: —  Â·  Correct: A
Explanation

The primary structure of a protein is defined as the linear sequence of amino acids linked together by covalent peptide bonds. This sequence represents the most basic level of protein organization and is determined by the genetic code. While the primary structure consists of a simple polypeptide chain, higher-order structures involve folding; the secondary structure refers to local spatial arrangements like alpha helices and beta sheets stabilized by hydrogen bonds. The tertiary structure describes the overall three-dimensional folding of a single polypeptide, and the quaternary structure involves the arrangement of multiple subunits. Therefore, a chain of peptide containing a linear sequence of amino acids specifically represents the primary structure [1].

Sources

  1. [1] https://en.wikipedia.org/wiki/Protein_secondary_structure
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