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Q.Assertion (A): Indian Government has set up an organisation known as GEAC to decide the validity of GM research. Reason (R): Genetic modification of organisms has no effect when such organisms are introduced in the ecosystem. (A) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A). (B) Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A). (C) Assertion (A) is true, but Reason (R) is false. (D) Assertion (A) is false, but Reason (R) is true.

CBSECBSE Class XII Board 2024MCQ· 1mImportance★★★★★
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The GEAC (Genetic Engineering Appraisal Committee) is indeed the Indian body that evaluates GM research, so Assertion (A) is true. However, the Reason (R) is false — genetic modification can have significant ecological effects when GM organisms are released into the environment. Therefore, the correct choice is (C).

The core of this question lies in understanding two separate facts: the role of a specific Indian regulatory body, and the ecological reality of genetically modified organisms. Let's break them apart.

Why the Reason is wrong — this is the conceptual key. The statement "Genetic modification of organisms has no effect when such organisms are introduced in the ecosystem" is fundamentally incorrect. Introducing a GM organism is like adding a new player to a finely balanced game. A crop engineered to resist pests, for example, might kill beneficial insects, or its modified genes could "escape" into wild relatives through cross-pollination, creating herbicide-resistant weeds. The entire field of biosafety risk assessment exists precisely because GM organisms can and do affect ecosystems. So Reason (R) is false.

Why the Assertion is correct — the Indian government, recognizing these very risks, established the Genetic Engineering Appraisal Committee (GEAC) under the Ministry of Environment, Forest and Climate Change. Its job is to assess the environmental safety of GM research and products before they are approved for release. So Assertion (A) is true.

Now, since the Assertion is true and the Reason is false, the correct option is the one that matches that combination.

  1. Evaluate Assertion (A): The GEAC (Genetic Engineering Appraisal Committee) is the apex regulatory body in India for activities involving genetically engineered organisms and products. It operates under the "Rules for the Manufacture, Use, Import, Export and Storage of Hazardous Microorganisms/Genetically Engineered Organisms or Cells, 1989" (Environment Protection Act). Its purpose is to evaluate the safety of GM research, field trials, and commercial release. Therefore, Assertion (A) is true.

  2. Evaluate Reason (R): The statement claims that introducing GM organisms into an ecosystem has "no effect." This is biologically incorrect. GM organisms can have several ecological impacts:

    • Gene flow: Transgenes can transfer to wild relatives, creating new traits in natural populations.
    • Non-target effects: A pest-resistant GM crop might harm beneficial insects like pollinators or natural predators. …

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