An IgG2 molecule is composed of? (DNB June 09)
|A||One gamma1 chain and two kappa chains|
|B||Two gamma1 chains and one kappa and one lambda chain|
|C||Two gamma1 chains and two kappa chains|
|D||Two gamma2 chains and two kappa chains|
IgG2 has two G2 heavy chains and two light chains (both kappa or both lambda). A single antibody molecule is made up of two heavy and two light chains. As a rule both heavy and both light chains are identical.