A genetically modified organism or GMO is classified as “an organism whose genetic material has been modified, in particular by genetic engineering. » (http://www.biology-online.org/dictionnaire/OGM). GMOs are created by deliberately removing a gene from one organism and moving or modifying it in order to improve or modify another organism in the laboratory. There are two different ways to genetically modify organisms. The first is called "selective breeding", in which a plant with the desired trait is selected to produce more plants with that trait. The second method involves engineering by removing the desired gene from plant A and transferring that gene into plant B. Plants created in this way are called transgenetic plants. This type of genetic engineering is typically performed on crops to create crops that are resistant to insects and herbicides. This type of GMO production is not a new concept in the scientific community. For example, genes from pig intestines are inserted into bacteria which then produce insulin which is purified and used (http://www.bt.ucsd.edu/gmo.html http://findourcommonground.com/ food-facts/food-GMO/). Although both genetic modification practices exist in the world today, they each have their advantages and disadvantages. During the breeding process, plants often exchange large, unregulated parts of their genome, leading to both useful and undesirable traits in the offspring. Some traits that these plants can pass on to their offspring are sometimes dangerous, such as diseases that occur when certain genes cross over. . Breeding is also a very expensive and time-consuming way to modify plant genes, because breeders sometimes have to cross many plants over many different generations to reach middle of paper...... be recovered. Genetically modified crops have cost the United States approximately $12 billion in agriculture, sales and transgenetic contamination (Kaye-Blake, W., O'Connell, A. and Lamb, C. (December 7, 2007). Potential market segments for genetically modified foods: results of the pooled analysis. Agribusiness, 23.4, 567-582.). The creation of genetically modified organisms is something the world is just discovering and is still trying to explore its options and opportunities. Genetic modification is a useful tool in the fight against world hunger. However, this tool is not yet fully developed and its long-term effects are largely unknown. As this activity continues to grow and become more important in the global food supply, genetic modification will become more common and more information will be known about its effects and supply..