MDCAT Biology MCQ #720

A genetic mutation results in the replacement of glutamic acid with valine in a polypeptide. This change directly alters which level of organization?

MDCAT Biology MCQ #720

  1. Question 1

    Q1. A genetic mutation results in the replacement of glutamic acid with valine in a polypeptide. This change directly alters which level of organization?

    • A) Secondary structure
    • B) Primary structure
    • C) Tertiary structure
    • D) Quaternary structure

    Answer: Primary structure

    Explanation: Primary structure is the specific sequence of amino acids; any change here is the fundamental result of a genetic mutation.