Question

Binding of antigen to antibody is through

• A. Electrostatic intereactions
• B. Covalent bonds
• C. Disulphide bridges
• D. Amide formation

Answer 1

Answer: (A)

Antibodies bind antigens through weak chemical interactions, and bonding is essentially non-covalent. Electrostatic interactions, hydrogen bonds, van der Waals forces, and hydrophobic interactions are all known to be involved depending on the interaction sites.

So, the correct answer is 'Electrostatic intereactions'.