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agricultural genetic engineering
agricultural genetic engineering
agricultural genetic engineering
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Bibliography
1. http://scope.educ.washington.edu/gmfood Copyright 2000-2004 by the SCOPE Research Group (UC Berkeley, UW, AAAS), all rights reserved.
2. http://www.safe-food.org
3. 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.
Food is an essential part of everyday life without it one could not survive. Every day we make choices on what we put in to our bodies. There are countless varieties of food to choose from to meet the diverse tastes of the increasing population. Almost all food requires a label explaining the ingredients and the nutritional value allowing consumers to make informed decisions on what they are consuming. However, many may not be considering where that food is coming from or how it has been produced. Unfortunately, there is more to food than meets the eye. Since 1992, “ the U.S. Food and Drug Administration ruled, based on woefully limited data, that genetically modified foods were ‘substantially equivalent’ to their non-GM counterparts” (Why to Support Labeling). GM food advocates have promised to create more nutritious food that will be able to grow in harsh climate conditions and eventually put an end to world hunger in anticipation of the growing population. There is very little evidence to support these claims and study after study has proven just the opposite. GM crops are not only unsafe to consume, but their growing practices are harmful to the environment, and multinational corporations are putting farmers out of business.
The first genetically manipulated food was tomatoes, they entered markets in 1994. Tomatoes are being planted all over the world. Scientists have been studying new ways to improve tomato harvesting and what better way to do so than genetic manipulation. The aim in genetically manipulating tomatoes and mostly every other crop is to introduce a new trait to the plant which does not occur naturally in the species in order to enhance its beneficial traits for us humans. In this procedure, breeders must know exactly which gene(s) they need or else it might affect the giving organism and the receiving organism. Then they isolate those gene(s) of interest with a restriction enzyme that cuts DNA into small fragments. The desired gene(s) must be copied from gene(s) that were extracted. This is called gene cloning. The gene may be modified slightly to work in a more desirable way once inside the recipient organism. The recipient organism is basically the receiving organism. The new gene(s), called a transgene is delivered into the cells (especially the reproductive cells) of the r...
A trip to any supermarket in Canada will reveal nothing out of ordinary, just the usual of array of fresh and packaged goods displayed in an inviting manner to attract customers. Everything appear familiar and reassuring, right? Think again. A closer microscopic inspection discloses something novel, a fundamental revolution in food technology. The technology is genetic engineering (GE), also known as biotechnology. Blue prints (DNA) of agricultural crops are altered and “spliced” with foreign genes to produce transgenic crops. Foods harvested from these agricultural plants are called, genetically modified (GM). Presently, Canada has no consumer notification; GM foods are being slipped to Canada’s foods without any labels or adequate risk assessments. This essay argues that GM foods should be rigorously and independently tested for safety; and, consumers be given the right to choose or reject GM foods through mandatory labels. What is the need for impartial examination of safety of transgenic foods? And why label them? GM foods are not “substantially equivalent” to conventional foods, genetic engineering of agricultural crops is not a mere extension of traditional plant breeding, and finally, there are human health implications associated with it.
Whitman, Deborah. "Genetically Modified Foods: Harmful or Helpful?". Cambridge Scientific Abstracts. Available online at http://www.csa.com/hottopics/gmfood/overview.html. Accessed November 9, 2003.
Are genetically modified foods safe? Genetically modified foods are crop plants created for human or animal consumption using molecular biological techniques. These plants have been modified to enhance certain traits like increased resistance to herbicides or improve nutritional content. This process traditionally has been done through breeding, but is not very accurate. Scientists have been using biotechnology to implant the gene that makes the plants act the way they want them to. Genetically modified foods have advantages and disadvantages on the environment and advantages and disadvantages on society. We have to weigh the positives and negatives to see if genetically modified foods are healthy for us and if we really need them.
Whitman, D. B. 2000. Genetically Modified Foods: Harmful or Helpful?. [online] Available at: http://www.csa.com/discoveryguides/gmfood/overview.php [Accessed: 7 Apr 2014].
Deal, Walter F., and Stephen L. Baird. “Genetically Modified Foods: A Growing Need.” Technology Teacher 62.7 (2003): 18. Academic Search Premier. Web. 2 Nov. 2011.
In the years between 1997 and 2010 the area of land cultivated with GMOs had a huge increase, we have moved 4.2 million to 365 million hectares. In fact, 10% of the planet’s arable land is used for genetically modified crops. Most of these crops are located in North America, but it should be registered, in recent years, a rapid increase in acreage in so-called developing countries. In the USA in the years 2009/2010, the vast majority of soy (93%), cotton (93%), corn (86&) and sugar beet (95%) have been grown with genetically modified varieties. Data for 2012 published by the International Service for the Acquisition of Agri-Biotech Applications (ISAAA) show that in Europe there has been a 13% increase of cultivated area (globally, the increase was 6%).
The term GM foods or GMO (genetically-modified organisms) is most commonly used to refer to crop plants created for human or animal consumption using the latest molecular biology techniques (Whitman, 2000). These plants have been modified in the laboratory to offer desired traits such as increased resistance to herbicides or improved nutritional content. Also, genetic engineering techniques have been applied to create plants with the exact desired trait very rapidly and accurately. For example, this is done by the geneticist isolating the gene responsible for drought tolerance and inserts it into another plant. The new genetically-modified plant will now have gained drought tolerance as well.
Biotechnology is the request of scientific techniques that help alter and improve plants, animals, and microor¬ganisms to enhance their value. Agricultural biotech¬nology deals with biotechnology that is involved with applica¬tions to agriculture. It helps with the intensification of crop productivity by introducing such advantages as disease that are resistant and have an increase in deficiency tolerance to the crops. So now, research¬ers are able to select genes for disease resistance from other types of species and transfer them to important crops.
For centuries, man has found ways to manipulate nature and to select crops for more desirable traits. If society were to stumble across a technology that would further advance these selections, it could quite possibly and significantly reduce the number of starving and malnourished people in the world while at the same time benefit the producers. “The UN Food and Agriculture Organization estimate that farmers will have to produce 70% more food by 2050 to meet the needs of the world's expected 9-billion-strong population. That amounts to one billion tons more wheat, rice and other cereals.” Less than one per cent of the American population is responsible for growing and harvesting all of the food for this country alone. The demand overseas for American produce varies depending upon the product, but overall exceeds the supply. On the forefront of this worldwide embittering battle to end world hunger and provide cost-effective medicine, society has stumbled across the answer known as biotechnology and genetically engineered organisms. In the end, we shall see that the benefits outweigh the negatives.
People have been altering the genomes of plants and animals for many years using traditional breeding techniques. In recent decades, however, advances in the field of genetic engineering have allowed for specific control over the genetic changes introduced into an organism. New genes can now be incorporated from one species into a completely unrelated species through genetic engineering. Biotechnology is the application of biological research techniques to create new processes and products while using biological systems, living organisms, and/or derivatives of organisms. Many jobs in the fields of industry farming, medicine, and food are being generated from biotechnology. Life can be improved through biotechnology in the following ways: advanced
Biotechnology, a term coined in 1917 by Karl Ereky, is defined as the manipulation of living organisms for purposes other than their original intent. Biotechnological research is often propelled by the desire to increase the quality of life that humans experience here on earth and is used to find solutions to modern-day problems. General opposition of the many variations of this type of research is driven by concern about the unknown effects of altering the environment of the natural world and the ethics of doing so. While the term may sound futuristic, agricultural biotechnology is nearly as old as civilization itself. Agriculture, in its most basic sense, is biotechnology and it all started with food.
Farmers began primitive genetic breeding many years ago by selecting seeds from their best plants, replanting them, and gradually improving the quality of successive generations. (Johnson and Raven 238) Science has come along way since that time. Scientists have developed corn that is resistant to insects. Crops that are resistant to insects and do not need to be sprayed with pesticides, many of which can harm the environment, are safer (Johnson and Raven 238). They are safer because the harmful chemicals used to spray the crops will not be introduced into the environment. Biotechnology seems confusing and complicated on the outside, but is actually quite simple.
Biotechnology in food uses genes of plants,microorganisms and animals that have desired production or nutrition related characteristics. The tools that are used in food biotechnology include traditional breeding ,such as cross breeding,and many modern techniques that have to do with using what is known about genes or orders for specific traits to better the quality and quantity of plant species. Food biotechnology modifies the production of fruits and vegetables that ripen on the vine for a better fresher taste. Different type of foods also benefit from food biotechnology .Foods that are developed using biotechnology are studied very carefully and judge by many governing agencies, health expects and scientists all over the world. Biotechnology can assist in the improve ment of the safety of food by reducing the naturally occurring toxins and allergens in different types of food .Food biotechnology is one of many tools farmers and food producers can use to give a food supply that is affordable,safe,convenient and sustainable