Question

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The most common secondary structure of proteins is *



a. β-pleated sheet

b. β-pleated sheet parallel

c. β-pleated sheet non-parallel

d. α-helix

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Answer 1

Answer:

a)helix and b)β-pleated sheet

Explanation:

The most common types of secondary structures are the α helix and the β pleated sheet. Both structures are held in shape by hydrogen bonds, which form between the carbonyl O of one amino acid and the amino H of another.