GS PrelimsScience and TechnologyBiotechnology2010

Mon 863 is a variety of maize. It was in the news for the following reason

A

It is a genetically modified dwarf variety which is resistant to drought

B

It is a genetically modified variety which is pest resistant

C

It is a genetically modified variety with ten times higher protein content than regular maize crop

D

It is a genetically modified variety used exclusively for bio-fuel pro- duction

Correct Answer: Option B

Explanation

1. Mon 863 is a specific variety of genetically modified (GM) maize developed by Monsanto. 2. It was engineered to contain a gene from the bacterium Bacillus thuringiensis (Bt) that produces the Cry3Bb1 protein. 3. This protein is toxic to the larvae of the corn rootworm, a major agricultural pest affecting maize crops. 4. Therefore, Mon 863 maize is resistant to this specific pest. 5. The variety gained significant media attention due to controversies surrounding its approval process and safety assessments, particularly in Europe. 6. Option (B) correctly identifies Mon 863 as a genetically modified variety which is pest resistant.

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