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Question

Proteins are found to have two different types of secondary structures vix. $$\alpha-$$ helix and $$\beta-$$ pleated sheet structure, $$\alpha-$$ helix structure of a protein is stabilised by:


A
peptide bonds
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B
van der Waals forces
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C
hydrogen bonds
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D
dipole-dipole interactions
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Solution

The correct option is D hydrogen bonds
Answer:- (C) hydrogen bonds
Two major factors stabilize the $$\alpha$$-helix structure are intrachain H-bonding and minimization of steric interference between side chains.

Chemistry
NCERT
Standard XII

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