Which of the following is true of pleated sheet foldings within a polypeptide?

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Which of the following is true of pleated sheet foldings within a polypeptide? Its loops are held in place mainly by disulfide bridges. They depend on regular occurrence of CO and NH. They are part of the polypeptide's quaternary structure. The side chains are parallel to the plane of the sheet. All the above.

The Correct Answer is

They depend on regular occurrence of CO and NH.Occurring at regular intervals along the backbone, these groups stabilize the sheet by forming many hydrogen bonds between neighboring segments of the polypeptide. The hydrogen bonds form between C=O and N-H groups of the backbone.

Reason Explained

They depend on regular occurrence of CO and NH.Occurring at regular intervals along the backbone, these groups stabilize the sheet by forming many hydrogen bonds between neighboring segments of the polypeptide. The hydrogen bonds form between C=O and N-H groups of the backbone. is correct for Which of the following is true of pleated sheet foldings within a polypeptide?

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