The lymphoid tissue associated with the mucosa is known as .........

Which response is provided by the body against a pathogen based on memory?

Assertion $A$: Acquired immunity is pathogen-specific. Reason $R$: Acquired immunity is characterized by memory. Which option is correct for Assertion $A$ and Reason $R$?

$T$-lymphocytes are produced in

Grafted kidney may be rejected in a patient due to

Regarding kidney transplantation,four statements are given below. Select the correct statements.
$i.$ During kidney transplantation,the recipient's immune system is suppressed for a long time.
$ii.$ Cell-mediated immunity is responsible for the rejection of the transplant.
$iii.$ $B$-lymphocytes are responsible for the rejection of the transplant.
$iv.$ Specific interferons are responsible for the acceptance or rejection of the kidney transplant.
Select the correct option: