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Agricultural genetic engineering
Agricultural genetic engineering
Gm crops pros and cons
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Recommended: Agricultural genetic engineering
Genetic Engineering in Agriculture
Introduction
Genetic Engineering is the technical manipulation of an object from
the natural world in a way in which it would provide a benefit to
humans.
Genetic engineering is also known as recombinant DNA technology which
means changing the genes in a living organism to produce a Genetically
Modified Organism (GMO) with a new genotype.
Various kinds of genetic modification are possible such as inserting a
foreign gene from one species into another, forming a transgenic
organism; altering an existing gene so that its product is changed; or
changing gene expression so that it is translated more often or not at
all [1].
Genetic engineering is also sometimes called bioengineering, genetic
manipulation, gene technology and biotechnology i.e. the industrial
use of biological processes.
Why is genetic engineering used in agriculture?
Genetic modification is used to grow crops in some parts of the world.
Genetic modification (GM) involves copying the genes which govern a
particular characteristic from one organism and transferring them to
another organism. An example of a GM crop is Soya. The Soya is
genetically modified so that it is tolerant to the herbicide
glyphosate [4]. This would reduce the usage of insecticides and
herbicides therefore less money is spent by the farmers and the
condition of the crops would be better.
How is it done?
Genetic engineering works by physically removing a gene from one
organism and inserting it into another organism giving it the ability
to express the trait encoded by that gene. Below is a simple summary
of how genetic engineering i...
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...netics
3. Website Address: http://www.anth.org/ifgene/beginner.htm
Article Name: A beginner’s guide to genetic engineering
Author: Dr David Heaf
4. Book Title: GM Crops & the environment
Publisher: the food and drink federation
Edition: October 2000
5. Website Address: http://www.planetpapers.com/Assets/835.php
Article name: GM Food
6. Book Title: Holsons: Genetic Engineering
Section title: Application of genetic engineering
Pages: 10-14
7. Website address:
http://www.roanoke.edu/Chemistry/JSteehler/HNRS301/Genetic/Agriculture.htm
Article name: Agriculture and genetic engineering
8. Software Title: Encarta Encyclopaedia 2001
Published: Microsoft
Edition: 2001
9. Website Address: http://www.foodfuture.org.uk/ethical_intro.aspx
Article name: Ethical Issues
Author: Food Future
Modern biotechnology was born at the hands of American scientists Herb Boyer and Stain Cohen, when they developed “recombinant deoxyribonucleotide, (rDNA), [1] for medicinal purposes. Subsequently, biotechnologists started genetically engineering agricultural plants using this technology. A single gene responsible for a certain trait, from one organism (usually a bacterium) is selected altered and then ‘spliced” into the DNA of a plant to create an agricultural crop consisting of that...
A GMO is a plant or animal that has been genetically engineered with DNA from bacteria, viruses, or other plants and animals. Most of the combinations which are used could not possibly occur in nature on its own. The intention of the process is to create a new beneficial trait such as creating its own pesticide or make it immune to herbicides. This would allow the crop such as Bt co...
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...
Genetic engineering, sometimes called genetic modification, is the process to alter the structure and nature of genes in humans, plants, and animals (what is genetic engineering). Because DNA is a code that is universal, genes can be manipulated
Genetic modification assign to the manipulation of the DNA by humans to change the fundamental characteristics of plants and animals. Genetic modification process happens by taking genetic material from one species and putting it into another, to allow the production of a new quality in a crop or an animal. Qualities such as: new color, new shape and new size. “In North America and Europe the value and impact of genetically engineered food crops have become subjects of intense debate, provoking reactions from unbridled optimism to fervent political opposition.” (Ackerman ,J.A, 2010) .Some people think about genetic modification that it is an essential tool for solving the starvation problem. On the other hand some people think of genetic modification as it has a huge negative effect in the human health and the environment. Genetically modified foods are everywhere around us, they are used by many people daily, although they cause dangerous health problems. Genetically modified foods affect human beings’ health and have huge negative environmental impacts.
Genes are, basically, the blueprints of our body which are passed down from generation to generation. Through the exploration of these inherited materials, scientists have ventured into the recent, and rather controversial, field of genetic engineering. It is described as the "artificial modification of the genetic code of a living organism", and involves the "manipulation and alteration of inborn characteristics" by humans (Lanza). Like many other issues, genetic engineering has sparked a heated debate. Some people believe that it has the potential to become the new "miracle tool" of medicine. To others, this new technology borders on the realm of immorality, and is an omen of the danger to come, and are firmly convinced that this human intervention into nature is unethical, and will bring about the destruction of mankind (Lanza).
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.
GM crops also benefit the economy and assist in feeding more people. While we struggle with feeding our population, “The population will continue to grow” (Calandrelli 1) For instance, genetic engineering in agriculture can minimize the cost of producing food. Thus, GMO’s in crops can result ...
In this day and age, Genetically Modified Organisms (GMOs) have become a topic of large interest in the media. GMOs are defined as an organism whose genetic structure has been altered by incorporating a gene that will express a desirable trait (Dresbach et al. al. 2013). Often times, these traits that are selected are either beneficial to the consumer or producer. Currently, GMOs are being created at a higher rate than ever before and are being used in the foods that we eat.
Genetic Engineering is the deliberate alteration of an organism's genetic information (Lee 1). The outcome scientists refer to as successful entitles the living thing’s ability to produce new substances or perform new functions (Lee 1). In the early 1970’s, direct manipulation of the genetic material deoxyribonucleic acid (DNA) became possible and led to the rapid advancement of modern biotechnology (Lee 1).
Genetically modified organisms can be plants or animals that have been genetically altered to produce or express a desired characteristic or trait. By genetically altering organisms such as crops, we can eliminate the use of pesticides by making the crops resistant to insects. We can also produce crops that are resistant to floods and droughts. Furthermore, with the use of molecular genetics, we are able to produce foods that are rich in nutrients and supplements. People in developing countries may not be fortunate enough to have a full course meal that contains nutrients from all four basic food groups. However, GMOs can with a little modification provide all the amino acids, vitamins, and minerals included in a good diet by simply consuming a genetically modified staple crop such as rice. In addition, by producing crops that are resistant to harsh environmental conditions as well as pests, we would see a rapid increase in the production of food thereby reducing and or!
Genetically modified organisms (GMOs) are a cause of continuous debate. What would be the purpose of producing genetically altered food? Many argue that GMOs could prove to be very beneficial, the use of GMOs could lead to advances in medicine, and agriculture, and they could also prevent famine in poor underdeveloped countries. Genetic modification offers many benefits: pest control, disease resistant crops, drought resistant crops, no use of insecticides, nutritional beneficial foods, and less contamination. This is only a short list of the many benefits offered by the used of GMOs. With so many benefits why are we opposed to such a miracle? (NERC 2005)
Lemaux, P.G. (2006). Introduction to genetic modification. Agricultural Biotechnology in California Series, 8178. Retrieved from http://ucanr.org/freepubs/docs/8178.pdf
Genetic engineering increases the agricultural economy, the yields of agricultural produce, and also causes negative effects on the ecosystem. Genetic engineering enhances plant resistance to drought, salinity, disease, pests and herbicides. The aim is to try and enhance the growth, productivity, nutrient value, and chemical composition of the plants. Chemicals are constantly being developed or improved to enhance the competitiveness and adaptability of crops, and to kill the parasites and weeds that plague the agricultural sector. . This however is not always good as the plant and the pests then become resistant to these new chemicals, defeating the purpose of it being used.
Genetically Modified crops are crops were people have been manipulating the genetic make-up of the plant so they can produce a