Saturday, October 26, 2019

Biotechnology- food :: essays research papers fc

Bibliography 1.  Ã‚  Ã‚  Ã‚  Ã‚  http://scope.educ.washington.edu/gmfood Copyright 2000-2004 by the SCOPE Research Group (UC Berkeley, UW, AAAS), all rights reserved. 2.  Ã‚  Ã‚  Ã‚  Ã‚  http://www.safe-food.org 3.  Ã‚  Ã‚  Ã‚  Ã‚   http://www.englishnature.org.uk/news/story.asp?ID=230  © 1998 - 2004 English Nature, Northminster House, Peterborough PE1 1UA England 4. http://www.fda.gov 5. http://pewagbiotech.org/resources/factsheets/display.php3?FactsheetID=2 Copyright  © 2004 The Pew Initiative on Food and Biotechnology Agricultural biotechnology is a collection of scientific techniques, including genetic engineering, that are used to create, improve, or modify plants, animals, and microorganisms. Using conventional techniques, such as selective breeding, scientists have been working to improve plants and animals for human benefit for hundreds of years. Modern techniques now enable scientists to move genes (and therefore desirable traits) in ways they could not before - and with greater ease and precision (scope.educ.washington.edu). Biotech food, which is genetically modified or genetically engineered, is grown from seeds that carry specific genes to produce desired characteristics. In the early 1990s, the first biotech food on the market was a tomato that ripened on the vine and could be transported without bruising. The products of agricultural biotechnology today include plants that are protected from insects or are tolerant to herbicides. Biotech foods have now made their way onto our tables. More than a third of the corn and more than half of the soybeans in the 1999 U.S. harvest were grown from seeds produced using biotechnology. As biotechnology crops and foods have proliferated, so have questions and concerns. European consumers, perhaps because of unrelated food scares about diseased beef and contaminated soda, are arguing to label biotech food or keep it out of stores. Consumers in the United States are starting to pay more attention to these issues. Concerns range from food safety to environmental impact. Also framing the debate are ethical questions, including whether it is right to change the genetic makeup of a plant. Some objections that activists raise also apply to conventional crops grown with modern high-intensity agriculture. Increasing acreage given over to GA crops is one of the most frightening aspects. The pollen from these plants can travel miles from their host via wind and insects and fertilize other non-GA crops or related weed species growing nearby. This has already happened with canola and sugar beet. Furthermore, the genes inserted by the alteration process are more biologically vigorous and may be up to 30 times more likely to escape than the plant's own genes. We have already seen this process take place with disastrous results with other 'exotic' and invasive species such as kudzu in the south, and zebra mussels in our waterways( http://www.

No comments:

Post a Comment