Question Detail
Question
Which level of protein structure is characterized by α-helices and β-pleated sheets stabilized by hydrogen bonds?
Correct Answer
Option B is the correct answer.
Detailed Explanation
Secondary structure refers to local, repetitive folding patterns stabilized by hydrogen bonds between backbone atoms (not R groups). The most common patterns are the alpha helix and the beta pleated sheet.
Hint
It involves patterns in the polypeptide backbone.