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What is Genetic Engineering?00:49

What is Genetic Engineering?

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Transgenic Organisms00:53

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Plant Breeding and Biotechnology01:59

Plant Breeding and Biotechnology

Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
Genome Copying Errors02:46

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DNA replication is a well-evolved process that copies millions of base pairs with high fidelity during each cell division. Occasionally a wrong base or a long stretch of wrong bases may get added to the daughter strands. If the errors are left unchecked, cells might accumulate several mutations that might endanger their  survival. Therefore, the copying errors are checked and repaired at three levels.
Transgenic Organisms00:53

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Transgenic Plants02:50

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Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...

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Commercialized GM crops and yield.

Nature biotechnology·2009
Same author

Competing interests.

Nature biotechnology·2003
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Updated: Jul 15, 2026

Preventing the Spread of Malaria and Dengue Fever Using Genetically Modified Mosquitoes
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    Science (New York, N.Y.)
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