Type 1 Research Highlights HowStuffWorks About NOW Agribusiness giants have modified crops such as corn, soy, cotton, canola, alfalfa, sugar beets, Hawaiian papaya, a squash variety, some potatoes, an apple variety and even a salmon. They have given these foods traits nature didn't bestow on them — such as enhanced resistance to insects, disease, drought, decay and chemical herbicides.
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Sign Up for Updates 50+ Uses for Apple Cider Vinegar Another trait that has been genetically engineered into food crops is pest resistance. These varieties have been genetically engineered with genes from a soil bacterium that produces a protein that is toxic to insects. The genes are modified and inserted into the genetic code of the plants, so that the plant manufactures its own pesticide.