MDCAT Biology MCQ #660

A structural biologist examines a secondary protein structure held by hydrogen bonds. For every complete turn of the helix, how many amino acids are present?

MDCAT Biology MCQ #660

  1. Question 1

    Q1. A structural biologist examines a secondary protein structure held by hydrogen bonds. For every complete turn of the helix, how many amino acids are present?

    • A) 2.4 amino acids
    • B) 4.2 amino acids
    • C) 5.0 amino acids
    • D) 3.6 amino acids

    Answer: 3.6 amino acids

    Explanation: The alpha helix is stabilized by hydrogen bonds, with exactly 3.6 amino acids per turn of the helix.