Which of the following is an example of secondary structure in a protein?
A) a particular amino acid sequence
B) an alpha helix
C) a globular shape
D) the joining of two polypeptide chains

Question

Quizplus · Accepted Answer

Secondary structure refers to the local three-dimensional structure of a protein chain. An example of this is an alpha helix, which is a repeating structure stabilized by hydrogen bonds between the carbonyl and amine groups in the polypeptide backbone. Amino acid sequence is primary structure, globular shape is tertiary structure, and joining of two polypeptide chains is quaternary structure.

Which of the Following Is an Example of Secondary Structure