Question

$\alpha$-helix structure refers to:

• A. Primary structure of protein
• B. Secondary structure of protein
• C. Tertiary structure of protein
• D. Quaternary structure of protein

Hint:

The $\alpha$-helix is a secondary structure, one of the most common types of protein folding.

Answer 1

The Correct Option is B

The $\alpha$-helix is a protein secondary structure, characterized by a coiled conformation. This structure is maintained by hydrogen bonds linking backbone atoms of the polypeptide. Protein primary structure denotes the amino acid sequence, tertiary structure refers to the 3D arrangement of a single polypeptide, and quaternary structure describes the assembly of multiple polypeptide chains.