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Genetically modified food
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Genetically modified (GM) foods are foods derived from genetically modified organisms. Genetically modified organisms have had specific changes introduced into their DNA by genetic engineering techniques. These techniques are much more precise than mutagenesis (mutation breeding) where an organism is exposed to radiation or chemicals to create a non-specific but stable change. Other techniques by which humans modify food organisms include selective breeding (plant breeding and animal breeding), and somaclonal variation.
GM foods were first put on the market in the early 1990s. Typically, genetically modified foods are transgenic plant products: soybean, corn, canola, and cotton seed oil. Animal products have also been developed, although as of July 2010 none are currently on the market.[1] In 2006 a pig was controversially[2][3] engineered to produce omega-3 fatty acids through the expression of a roundworm gene.[4] Researchers have also developed a genetically-modified breed of pigs that are able to absorb plant phosphorus more efficiently, and as a consequence the phosphorus content of their manure is reduced by as much as 60%.[5]
Critics have objected to GM foods on several grounds, including safety issues,[6] ecological concerns, and economic concerns raised by the fact that these organisms are subject to intellectual property law.

This page was last modified on 2 February 2011 at 16:05

SUMMARY:
This article is about the GM foods that have been made by organisms. These foods were first in the markets in the 1990’s. This article is saying that these foods could be potentially harmful to a person. These foods are usually made from the products of soybean, corn, canola, and cotton seed oil. There have been some animal products made as well.

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