NEET 2004
- Exam
- NEET
- Year
- 2004
- Subject
- Zoology
- Chapter
- Biotechnology and Its Applications
NEET 2004 · Zoology · Biotechnology and Its Applications
The most likely reason for the development of resistance against...
The most likely reason for the development of resistance against pesticides in insects damaging a crop is:
Options
- Arandom mutations
- Bgenetic recombination
- Cdirected mutations
- Dacquired heritable changes.
Correct answer
A. random mutations
Step-by-step solution
The most likely reason for the development of resistance against pesticides in insect damaging a crop is random mutations, because environmental stress, i.e. pesticides does not cause direct changes in genome instead, it simply selects rather persisting mutations which result in phenotypes that are better adapted to the new environment in certain pesticides.