Question

the dimeric structure of antibody present in IGa consists of a]2 heavy polypeptide chains and 2 light polypeptide chains b]4 heavy polypeptide chains and 4 light polypeptide chains c]1 heavy polypeptide chains and 3 light polypeptide chains d]3 heavy polypeptide chains and 1 light polypeptide chains which option is correct maam?

Answer 1

In 1 antibody, 2 light chains, 2 heavy chains are present. As IgA is a dimer i.e. made of 2 antibodies. 4 heavy and 4 light chains will be present. Ans 2.