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Farmers have manipulated plants and animals through selective breeding for decades of thousands of years in order to create desired traits. In the 20th century, a surge in technology resulted in an increase in agricultural biotechnology through the selection of traits like the increased yield, pest resistance, drought resistance, and herbicide resistance.
Genetically modified crops (GM crops) are plants used in agriculture, the DNA of which has been modified using genetic engineering methods. Plant genomes can be engineered by physical methods or by use of Agrobacterium for the delivery of sequences hosted in T-DNA binary vectors.
Genetic engineering has applications in medicine, research, industry and agriculture and can be used on a wide range of plants, animals and microorganisms. Bacteria , the first organisms to be genetically modified, can have plasmid DNA inserted containing new genes that code for medicines or enzymes that process food and other substrates .
All genetic engineering processes involve the modification of DNA. Traditionally DNA was isolated from the cells of organisms. Later, genes came to be cloned from a DNA segment after the creation of a DNA library or artificially synthesised. Once isolated, additional genetic elements are added to the gene to allow it to be expressed in the host ...
The International Society for Environmental Biotechnology [1] defines environmental biotechnology as "the development, use and regulation of biological systems for remediation of contaminated environments (land, air, water), and for environment-friendly processes (green manufacturing technologies and sustainable development)". [2]
The applications of biotechnology are diverse and have led to the development of products like life-saving drugs, biofuels, genetically modified crops, and innovative materials. [4] It has also been used to address environmental challenges, such as developing biodegradable plastics and using microorganisms to clean up contaminated sites.
This is an accepted version of this page This is the latest accepted revision, reviewed on 5 February 2025. Foods produced from organisms that have had changes introduced into their DNA Part of a series on Genetic engineering Genetically modified organisms Bacteria Viruses Animals Mammals Fish Insects Plants Maize/corn Rice Soybean Potato History and regulation History Regulation Substantial ...
Environmental DNA or eDNA is DNA that is collected from a variety of environmental samples such as soil, seawater, snow or air, rather than directly sampled from an individual organism. As various organisms interact with the environment, DNA is expelled and accumulates in their surroundings from various sources. [ 2 ]