Bollgard I and Bollgard II technologies are mentioned in the context of:
✓ Correct answer: b) Developing genetically modified crop plants
ExplanationBollgard I and Bollgard II are genetically modified (GM) cotton varieties developed by Monsanto (now part of Bayer) to provide resistance to bollworm, a major pest of cotton plants.Option (b) is correct: Bollgard I was the first genetically modified cotton variety which was engineered with a gene from the bacterium Bacillus thuringiensis (Bt).This gene enables the cotton plant to produce a toxin that is harmful to bollworms thereby offering pest resistance.Bollgard II is an advanced version which incorporates two Bt genes (Cry1Ac and Cry2Ab) and provides broader protection against a wider range of pests, including the pink bollworm.These genetically modified crops are designed to reduce pesticide dependency and enhance crop yields by making the plants resistant to pests that typically damage cotton bolls.9
Practice more Science PYQs
Attempt a free 10-question quiz or browse the full Science & Technology previous-year-question bank with instant answers and explanations.
🔬 Science PYQs →