In the α -helix
A) there are no hydrogen bonds
B) the peptide chain is fully extended
C) the peptide chain bends back on itself
D) there are hydrogen bonds parallel to the helix axis

Question

Quizplus · Accepted Answer

In an α-helix, hydrogen bonds form between the carbonyl oxygen of one amino acid and the amide hydrogen of another, four residues away. These hydrogen bonds are parallel to the helix axis, stabilizing the helical structure.

In the α -Helix