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Which structure(s) of proteins remain(s) intact during denaturation process?

1. (a) Tertiary structure only
2. (b) Both secondary and tertiary structures
3. (c) Primary structure only
4. (d) Secondary structure only

Correct answer: (c) Primary structure only

Solution

During denaturation, the primary structure of proteins, which is the sequence of amino acids, remains intact because it involves covalent peptide bonds that are not broken during this process.

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