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67

Question 67

Bollgard I and Bollgard II technologies are mentioned in the context of

AOptions

A
A) clonal propagation of crop plants
B
B) developing genetically modified crop plants
C
C) production of plant growth substances
D
D) production of biofertilizers

BSolution

Bollgard I and Bollgard II are brand names for genetically modified (GM) cotton varieties developed by Monsanto. These technologies involve inserting genes from the bacterium *Bacillus thuringiensis* (Bt) into the cotton plant's genome. These genes enable the cotton plant to produce proteins that are toxic to certain lepidopteran insect pests, particularly the cotton bollworm, thereby making the plant insect-resistant. This reduces the need for chemical pesticides.

Diagram for Q67

CStrategy

For questions on agricultural technologies, recognize key terms related to genetic modification (GM crops, Bt crops, gene editing). Understand the purpose and mechanism of such technologies, especially those that have been widely discussed in the public domain.

DSyllabus Analysis

This question falls under Science & Technology and Agriculture, specifically Biotechnology (Genetically Modified Crops).

EQuestion Analysis

Easy. Bollgard cotton is a widely known example of a genetically modified crop.