What Is the Nature of the Usual Linkage Between Nucleic

Multiple Choice

What is the nature of the usual linkage between nucleic acids and proteins in nucleoproteins?

A) Hydrogen bonding.
B) Covalent ester formation between phosphoric acid of nucleic acids and basic amino acids of proteins.
C) Ionic linkages between phosphoric acid of nucleic acids and basic amino acids of proteins.
D) Van der Waals interactions between bases of nucleic acids and side chains of amino acids of protein.
E) A mixture of covalent linkages and hydrogen bonding.