What Kind of Bonds Link Amino Acids to Form the Basic

Question

What kind of bonds link amino acids to form the basic sequence of a protein?  
A) Disulfide
B) Hydrogen
C) Ionic
D) Peptide
E) Noncovalent

Accepted Answer

Peptide bonds link amino acids together to form the basic sequence of a protein. Disulfide, hydrogen, and ionic bonds may be present in proteins, but they do not link amino acids together to form the basic sequence. Noncovalent interactions also play a role in protein structure but do not directly link amino acids together.