Antibody
Antigen binding sites of an immunoglobulin are located in

Fc region of the antibody
Fab regions of the antibody
light chain alone
heavy chain alone

ANSWER DOWNLOAD EXAMIANS APP

Antibody
Self reactive antibodies are not found in significant concentration in normal serum because

B cells that are stimulated via their surface bound antibody in the absence of T cell help to commit suicide
self reactive B cells switch to IgA which is all secreted and not present in serum
self reactive B cells are killed by CD8 T cells
it is impossible to generate a self-reactive antibody

ANSWER DOWNLOAD EXAMIANS APP