. The secondary structure of a protein refers to
A: helical backbone
B: hydrophobic interactions
C: sequence of amino acids
D: fixed configuration of the polypeptide backbone
Best Answer
Explanation:
The secondary structure of a protein refers to the helical backbone which is formed by formation of intramolecular H-bonds( in Alpha pleated sheets) or intermolecular H-bonds(in Beta pleated sheets) which are hydrophilic interaction.
Hydrophobic interactions occur in tertiary structure of a protein.
Primary structure of a protein tells about the sequence of amino acids present in it.
Correct Option is: (A)
helical backbone
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