NEET Previous Year Question
Select the correct statement with respect to diseases and immunisation :
Topic: NEET PYQ
Answer: B. Full step-by-step solution below.
- AInjection of snake antivenom against snake bite is an example of active immunisation.
- BIf due to some reason B-and T-lymphocytes are damaged, the body will not produce antibodies against a pathogen.
- CInjection of dead/inactivated pathogens causes passive immunity
- DCertain protozoans have been used to mass produce hepatitis B vaccine
Correct answer: B
Solution
(b) B-lymphocytes produce antibodies.T-lymphocytes help activate B-cells and coordinate immune response.
If both are damaged, the immune system cannot generate antibodies effectively.
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