A) Preformed antibodies need to be injected to treat the bite by a viper snake
B) The antibodies against small pox pathogen are produced by T-lymphocytes
C) Antibodies are protein molecules, each of which has four light chains
D) Rejection of a kidney graft is the function of B-lymphocytes
Correct Answer: A
Solution :
In artificially acquired passive immunity preformed antibody in an immune serum is introduced into the body by infection. As the antivenum used to treat snake bites. In this case, the body does not produce any antibodies. Antibody is a protein molecule having two light chain and two heavy chain. B-cells recognize and bind antigens and may differentiate to memory cell or plasma cells (produce antibody). T-cells causes transplant rejection.
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