GM crops and biosafety

GM crops

A genetically modified crop has genetic material deliberately altered using biotechnology to express a desired trait. A transgenic crop contains material introduced from another species; not every gene-edited crop is transgenic. Traits include insect resistance, herbicide tolerance, disease resistance, delayed ripening, improved nutrition and stress tolerance. Risk depends on the trait, method and environment; “GM” is not a single risk category.

Bt cotton contains genes from Bacillus thuringiensis that produce proteins toxic to specified insect larvae. Commercial cultivation in India was approved in 2002. It can reduce some bollworm damage but is not a universal pesticide and does not automatically control sucking pests. Resistance management, refuge strategies, seed quality, farmer choice and ecological effects remain relevant.

Biosafety and regulation

Biosafety examines possible effects on human and animal health, non-target organisms, gene flow, weediness, soil and agro-ecosystems. Case-by-case assessment may include molecular characterisation, allergenicity and toxicity, nutritional equivalence, environmental risk and post-release monitoring. Gene flow to compatible wild relatives, resistant pests, herbicide-tolerant weeds and changed pesticide use are possible considerations, not automatic outcomes.

India’s framework includes the Environment (Protection) Act, 1986 and the 1989 Rules for manufacture, use, import, export and storage of hazardous microorganisms and genetically engineered organisms or cells. The Genetic Engineering Appraisal Committee (GEAC) is the central statutory committee associated with environmental release of GM organisms. The Review Committee on Genetic Manipulation (RCGM) deals with research and contained use oversight under the biotechnology framework. They are not the same institution.

The Cartagena Protocol on Biosafety, adopted in 2000 under the Convention on Biological Diversity, addresses transboundary movement of living modified organisms. It is distinct from the Nagoya Protocol on access and benefit-sharing of genetic resources and traditional knowledge.

Prelims checklist

Differentiate GM, transgenic, gene-edited and conventionally bred crops. Biosafety addresses unintended health/ecological risks; biosecurity addresses misuse, theft or unauthorised access. Bt toxin targets specified insects after ingestion; it is not a chemical spray for every pest. Remember Bt cotton 2002, the 1989 Rules, GEAC and Cartagena 2000.

Prelims revision checklist

Identify the definition first, then connect it to the relevant institution, date, process and example. Do not treat a scientific mechanism as a policy instrument, an international label as automatic domestic legal status, or a rank as ownership. Watch absolute words such as “always” and “only”; they are rarely correct unless part of a formal definition. In current-affairs questions, apply the stable principle and verify changing figures or variants from an official source.

Analogy

GM crops and biosafety — Analogy

A GM crop is a plant given an instruction for a chosen trait; biosafety checks whether that instruction creates unacceptable effects elsewhere in the ecosystem.