Humans have an acquired immune system that produces antibodies to neutralize pathogens. Still,the innate immune system is present at the time of birth because it

Antigen binding site is present in

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:

Which of the following statements is correct regarding immunity?

The development of a quick immune response in a person infected with deadly microbes by administering preformed antibodies is known as:

Antibodies fight against: