Anti Bodies
Each IgA antibody molecule consists of

two polypeptide chain and has two antigen binding site
two polypeptide chain and has one antigen binding site
three polypeptide chain and has two antigen binding site
four polypeptide chain and has two antigen binding site

ANSWER DOWNLOAD EXAMIANS APP

Anti Bodies
Antibodies in the human immune system can identify approximately 108 different molecules Which one of the following is correct?

Many of these molecules are self-antigens
Most of these antibodies recognize proteins
Most of these antibodies recognize small organic molecules
This diversity is generated from 108 different immunoglobin genes

ANSWER DOWNLOAD EXAMIANS APP