Which of the following statements about the protein secondary structure is correct:-

M.Sc. Bio-Physics (PU-CET P.G) 2018 Panjab University Entrance Exam With Answers

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35.

A: An α-helix is primarily stabilized by ionic interactions between the side chains by the amino acids

B: β-sheet exists only in anti-parallel form

C: β-turn often contains proline

D: An ἁ-helix can be composed of more than one polypeptide chain

The answer is: C

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