MDCAT Biology MCQ #659

In the primary structure of a protein, amino acids are linked in a specific sequence. What is the chemical nature of this linkage?

MDCAT Biology MCQ #659

  1. Question 1

    Q1. In the primary structure of a protein, amino acids are linked in a specific sequence. What is the chemical nature of this linkage?

    • A) C-N linkage
    • B) C-O linkage
    • C) N-H linkage
    • D) C-C linkage

    Answer: C-N linkage

    Explanation: The peptide bond is a C-N linkage between the carboxyl carbon of one amino acid and the amino nitrogen of another.