Question

write a note on GM crops

Answer 1

Genetically modified or GM crops as they are commonly known refers to the plants whose DNA has been modified with the help of genetic engineering techniques and are then grown and cultivated.

Mutation Breeding was the earlier alternative to provide better yields where an organism is exposed to radiation or chemicals to bring permanent change to the quality of the plant and its yield.

Selective breeding, animal or plant breeding was also done to introduce new traits into a plant that it did not possess naturally. The objectives were primarily to prevent attack of insects and pests, resistance to diseases and changing environmental conditions, enabling a plant to grow in a different soil and climate than the one in which it normally grows.

Answer 2

Genetically modified crops (GM crops or biotech crops) are plants used in agriculture, the DNA of which has been modified using genetic engineering methods. In most cases, the aim is to introduce a new trait to the plant which does not occur naturally in the species. Examples in food crops include resistance to certain pests, diseases, environmental conditions, reduction of spoilage, resistance to chemical treatments (e.g. resistance to a herbicide), or improving the nutrient profile of the crop. Examples in non-food crops include production of pharmaceutical agents, biofuels, and other industrially useful goods, as well as for bioremediation.
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