In fibrous proteins, polypeptide chains are held together by ___________.
(i) van der Waals forces
(ii) disulphide linkage
(iii) electrostatic forces of attraction
(iv) hydrogen bonds

contexto.130

3 years ago

Option (ii) and (iv) are the answers.

Disulphide linkage and hydrogen bonding hold polypeptide chains together in fibrous proteins.