Question 35: The adaptive cellular (A) system learns to recognize specific antibodies…
In the following question, a sentence is given with certain words marked as (A), (B), (C), and (D). Choose the option with the pair(s) of words that need to be interchanged to make the sentence grammatically and contextually correct. If no change is required, mark 'No change required' as your answer.
The adaptive cellular (A) system learns to recognize specific antibodies (B), consequently generating targeted pathogens (C) and mounting a robust immune (D) response upon subsequent exposure to a threat.
Answer Options:
- A. Only A-D
- B. Only B-C ✓
- C. Both A-B and C-D
- D. Both A-D and B-C
- E. No change required
Correct! The words at (B) and (C) need to be interchanged. The immune system recognizes "pathogens," not "antibodies," and generates "antibodies," not "pathogens." After interchange: "…recognize specific pathogens (B), consequently generating targeted antibodies (C)…" Example: "The body identifies viruses (A) and produces white blood cells (B)." → If reversed incorrectly, it would be illogical; interchanging makes it correct.
