The component of the given α-helical structure of protein which maintains its stability is
Correct answer: D. IV.
- A. I.
- B. II.
- C. III.
- D. IV.
Explanation
In an alpha helix, hydrogen bonds form between the carbonyl oxygen (C=O) of one amino acid and the amide hydrogen (N-H) of another amino acid, specifically those located four residues away along the polypeptide chain. This interaction, often described as an i + 4 interaction, stabilizes the helix structure. So option D is correct. Other bonds are not related to stability of alpha helix.
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