NEET 2020 · Class 12
Microbes in Human Welfare
Match the following columns and select the correct option. Column-I | Column-II (a) Bt cotton | (i) Gene therapy (b) Adenosine deaminase deficiency | (ii) Cellular defence (c) RNAi | (iii) Detection of HIV infection (d) PCR | (iv) Bacillus thuringiensis
- (A)(a)
- (B)(b)
- (C)(c)
- (D)(d)
The NCERT line that answers it
Concept-groundedAn example of microbial biocontrol agents that can be introduced in order to control butterfly caterpillars is the bacteria *Bacillus thuringiensis* (often written as *Bt*).
- Chapter
- Microbes in Human Welfare
- Section
- 8.5 MICROBES AS BIOCONTROL AGENTS
The answer is taught in this NCERT section but is not one quotable sentence. It needs combining facts or applying the idea.
How this line gives the answer
Claim discrepancy: claimed D, GPT says A. Matched with override at hybrid rank 2.
We did this for 1,565 questions.
Every one traced to the exact sentence in NCERT that answers it, including 90% of the 2026 paper. Sit a mock on the real NEET 2027 computer interface and every mark you drop comes back with its line attached.
Question text is reproduced from the published NEET 2020 paper for study and commentary. NCERT text is quoted, not redistributed; textbooks remain at ncert.nic.in. Our mapping method, including its measured error rates, is published at /methodology.