Where are $B\,-$ cells and $T\,-$ cells formed ? How do they differ from each other ?
Both $B$-cells and $T$-cells are formed in bone marrow.
$B$-cells matures in bone marrow while $T$-cells matures in thymus.
$B$-cells provides humoral immunity and $T$-cells provides cell mediated immunity ($CMI$).
Active immunity is obtained by
Identify $X$ from Figure
What are the two corollaries related to immune system ?
Which of the following immunoglobulins does constitute the largest percentage in human milk ?
‘Second line of defence' is known as