‘Second line of defence' is known as
Antibodies
WBC
Liver
Blood
Identify the wrong statement with reference to immunity.
Define : Autoimmunity
Antigen binding site in an antibody is found between
$T$-cells are lymphocytes which produce the cellular immunity. These are developed from
Where are $B\,-$ cells and $T\,-$ cells formed ? How do they differ from each other ?