Grafted kidney may be rejected in a patient due to
After vaccination the body builds up
Assertion $(A)$ : Antigen can be easily recognized because it has antigenic determinants.
Reason $(R)$ : The recognition ability is innate.
Assertion : Interferons are a type of'antibodies produced by body cells infected by bacteria.
Reason : Interferons stimulate inflammation at the site of injury.
Definitions / Explanation : Active immunity & Passive immunity