Insect resistant cotton plants have been genetically engineered by inserting a gene from a/an
Reviewed by Dalvoy
UPSC Civil Services preparation
- Avirus
- BbacteriumCorrect
- Cinsect
- Dplant
Explanation
The correct answer is B because the gene used to create insect resistant cotton, commonly known as Bt cotton, is derived from a soil bacterium called Bacillus thuringiensis.
This bacterium naturally produces specific proteins that are toxic to certain types of insects, such as bollworms. By inserting the gene responsible for these toxic proteins into the cotton plant DNA, the plant is able to produce its own pesticide, making it resistant to pest attacks without the need for excessive chemical sprays.

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