Zigzag and regular coiling of polypeptide linkage forms:
Correct answer: B. Secondary structure
- A. Primary structure
- B. Secondary structure
- C. Tertiary structure
- D. Quaternary structure
Explanation
The secondary structure of a protein is a regular coiling or zigzagging of polypeptide chains caused by hydrogen bonding between N-H and C=O groups of amino acids near each other in the chains.
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