In higher vertebrates, the immune system can distinguish selfcells and non-self. If this property is lost due to genetic abnormality and it attacks selfcells, then it leads to
autoimmune disease
active immunity
allergic response
graft rejection.
Antibodies are produced by
$MALT$ constitutes about _______ percent of the lymphoid tissue in human body.
Name the primary and secondary lymphoid organs.
Discribe the Innate immunity.
Which of the following is not an autoimmune disease?