The IgG antibody molecule consists of which molecular structure?
A) a covalent tetramer of mu chains
B) two light chains and two gamma chains held together by disulfide bonds
C) a pentamer consisting of subunits containing two light chains and two alpha chains
D) two kappa chains, one gamma chain and one mu chain held together by disulfide bonds

Question

Quizplus · Accepted Answer

The structure of the IgG antibody molecule consists of two identical light chains and two identical gamma heavy chains held together by disulfide bonds. The light chains are approximately 25 kDa and the heavy chains are approximately 50 kDa.

The IgG Antibody Molecule Consists of Which Molecular Structure