$MALT$ constitutes about . . . . . . percent of the lymphoid tissue in the human body.

What is the full form of $HLA$?

Antibodies in our body are complex of ........

The spleen primarily contains which types of cells?

Immature lymphocytes differentiate in which of the following organs?

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: