Secondary structure is characterized by which one of the following types of interactions?
A)hydrogen bonding within the peptide backbone
B)a covalent bond between two cysteines
C)ionic bonding between an acidic R group and a basic R group
D)hydrogen bonding between R groups of amino acids
E)the covalent bond between an amino nitrogen and a carboxyl carbon

Question

Quizplus · Accepted Answer

Secondary structure is characterized by hydrogen bonding within the peptide backbone. This bonding is between the carbonyl oxygen of one amino acid and the amide hydrogen of another amino acid, creating either alpha helices or beta sheets. The other choices do not relate specifically to secondary structure.

Secondary Structure Is Characterized by Which One of the Following