NEET 2012
- Exam
- NEET
- Year
- 2012
- Subject
- Zoology
- Chapter
- Human Health and Diseases
NEET 2012 · Zoology · Human Health and Diseases
Which one of the following statements is correct with respect to...
Which one of the following statements is correct with respect to immunity?
Options
- APreformed antibodies need to be injected to treat the bite by a viper snake
- BThe antibodies against small pox pathogen are produced by T-lymphocytes
- CAntibodies are protein molecules, each of which has four light chains
- DRejection of a kidney graft is the function of B-lymphocytes
Correct answer
A. Preformed antibodies need to be injected to treat the bite by a viper snake
Step-by-step 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.