NEET 2012 · Class 12

Microbes in Human Welfare

Which one of the following is an example of carrying out biological control of pests/diseases using microbes?

  1. (A)Trichoderma sp. against certain plant pathogens.
  2. (B)Nucleopolyhedrovirus against white rust in Brassica.
  3. (C)Bt-cotton to increase cotton yield.
  4. (D)Lady bird beetle against aphids in mustard.

The NCERT line that answers it

Verbatim line

A biological control being developed for use in the treatment of plant disease is the fungus *Trichoderma*.

Chapter
Microbes in Human Welfare
Section
8.5 MICROBES AS BIOCONTROL AGENTS
Page
8
Words matched
39 of 39

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states that Trichoderma is a biological control being developed for use in the treatment of plant diseases, which directly matches option A's claim about Trichoderma sp. against certain plant pathogens.

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.

Take the free 5-minute checkMore from this chapter

Question text is reproduced from the published NEET 2012 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.