UPSC CSE Prelims
Question 23
With reference to monoclonal antibodies, often mentioned in news, consider the following statements :
- They are man-made proteins.
- They stimulate immunological function due to their ability to bind to specific antigens.
- They are used in treating viral infections like that of Nipah virus.
Which of the statements given above are correct?
View correct answer and explanation
Correct answer: D
Correct Option: D (I, II and III)
Explanation: Monoclonal antibodies are lab-produced, antigen-specific immunoglobulins. Their targeted binding can neutralize pathogens or modulate immune responses; experimental monoclonal antibodies have been investigated for Nipah virus infection.
Statement / Pair / Item-wise Analysis:
I: True-engineered/produced in laboratories.
II: True-bind specific antigens to mediate immune action.
III: True-Nipah-related antibodies such as m102.4 have been studied for treatment.
Option-wise Analysis:
A. Incorrect-omits III which the answer requires.
B. Incorrect-omits I which the answer requires.
C. Incorrect-omits II which the answer requires.
D. Correct-this matches the facts and the item-wise assessment above.