Question

The tertiary structure of a protein relies mostly on what kind of interaction to determine the protein's overall shape?
A.R groups forming multiple bonds with other R groups.
B.R group interactions between multiple protein polypeptide subunits.
C.Hydrogen bonding between atoms of the polypeptide backbone.
D.Peptide bonding between amino acid groups.

Answer 1

It is generally stabilized by outside polar hydrophilic hydrogen and ionic bond interactions, and internal hydrophobic interactions between nonpolar amino acid side chains .....

in my opinion c is your right answer