The alpha helix and the beta pleated sheet belong to which level?
ASymmetrical
BSequential
CSecondary
DSedimentary
Answer & Solution
Correct answer: C. Secondary
1. These arise from regular folding of the backbone.
2. Hydrogen bonds between peptide groups hold them.
3. They are the secondary structure.
_Source: NCERT Class 12 Chemistry Part 2, Unit 10 'Biomolecules'_
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