The yellowish fluid "colostrum" secreted by mammary glands of mother during the initial days of lactation has abundant antibodies ($lgA$) to protect the infant. This type of immunity is called as
Autoimmunity
Passive immunity
Active immunity
Acquired immunity
Why is an antibody molecule represented as $H_2I_2$ ?
Select the incorrect statement with respect to acquired immunity.
............. Technology is useful in Vaccines production
Definitions / Explanation : $B$-lymphocytes & $T$-lymphocytes
The immunity obtained after the body has recovered from a disease is