Usually a polypeptide chain bends and folds upon itself to form a globular shape. This is protein's:
Correct answer: B. Tertiary structure
- A. Primary structure
- B. Tertiary structure
- C. Secondary structure
- D. Quaternary structure
Explanation
The correct answer is the tertiary structure because it represents the complete three-dimensional folding of a single polypeptide chain into a globular shape, which is essential for its function and stability. The primary structure only details the sequence of amino acids, while the secondary structure includes local folding patterns like alpha-helices and beta-sheets. Quaternary structure is relevant only for proteins with multiple polypeptide subunits.
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