Which of the following will be included under innate immunity?
Mucus membranes
Interferons
Natural killer cells
All of these
Lacking of $B$-cells and $T$-cells is known as
Assertion : Interferons are a type of'antibodies produced by body cells infected by bacteria.
Reason : Interferons stimulate inflammation at the site of injury.
What is Active immunity and Passive immunity ?
Spleen is
Assertion $(A)$ : Antigen can be easily recognized because it has antigenic determinants.
Reason $(R)$ : The recognition ability is innate.