MDCAT Biology MCQ #959

In the secondary structure of a globular protein, an alpha-helix is formed. How many amino acids are typically found per turn?

MDCAT Biology MCQ #959

  1. Question 1

    Q1. In the secondary structure of a globular protein, an alpha-helix is formed. How many amino acids are typically found per turn?

    • A) 3.6 amino acids
    • B) 4.2 amino acids
    • C) 2.8 amino acids
    • D) 5.0 amino acids

    Answer: 3.6 amino acids

    Explanation: There are exactly 3.6 amino acids per turn in an alpha-helix. Beta-sheets involve folding rather than helical turns.