$A$ person who met with road accident is likely to develop tetanus he is immunised by administering

Assertion : The antibodies separted from serum are homogenous.

Reason : Monoclonal antibodies are homogenous immunological reagents.

After infection by pathogens dead cells, dead pathogens and liquid form the

Which one of the following is a stimulant

Kala azar is caused and transmitted respectively by