Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Cons of gmos in agriculture
The pros and cons of genetically modified crops
Dangers of gmos
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: Cons of gmos in agriculture
Introduction:
Recent advances in science and technology has shown a great impact on all areas of the life. One of the most important fields of science and technology is Biotechnology. The advancement in biotechnology brought forward the solutions for many of the problems that human race were facing, including the problem of feeding a large population but at the same time, it poses some new threats and challenges to human beings as well. This short report discusses the merits and demerits of extensive applications of biotechnology, specially the impacts of genetically modified/engineered crops which brought up in market 1990s.
According to Wikipedia, the definition and process of genetically modified crops is summarised as “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, using a process of either Cisgenesis or Transgenesis. 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”.
Following is the table of a summary of genetically modified foods that are approved by FDA for human consumption.
Table 1
GM Foods for human consumption evaluated by FDA
_____________________________________________________________________
Modified attribute GM plant product (number of varieties)
_____________________________________________________________________
Insect resistance Corn (8)
Tomato (1)
Potato (4)
Cotton ...
... middle of paper ...
...ng areas (3). In addition to it also affects the local ecosystem of the fertile land, by affecting insect and soil properties etc. As these genetically modified species are disease free, hence have longer lives, which pose a persistent threat to the environment, via cross pollination and by affecting the normal flora of the area (2). One of the examples of such threat was the genetically modified specie of mice, developed by Australian scientist to control the population growth of mice, but it resulted in complete destruction of whole specie. This example perfectly demonstrates the extent of negative effects of this technology (2, 3).
Conclusion
Although genetically modified crops offered a wide range of benefits but it also poses some very serious threats. Hence, the use of this technology should be discouraged and alternative methods should be discovered.
Barbara Kingsolver discusses genetic manipulation through generations of different species in her essay A Fist in the Eye of God. These genetic manipulations occur due to the species acclimating to their environment. Diversity in genes is nature’s survival of the fittest. Only the strongest survive and they pass on their strong traits. With today’s technology, we have the capability of altering genes within a species DNA. This paper examines the detrimental repercussions that GMO 's cause to the environment and insects necessary for the progression of crops.
Pamela Ronald, a plant geneticist, presented a Ted Talk “The case for engineering our food”, Ronald points out that engineered genetics for our plants is not harmful, yet better for our environment and health. “Now, genetic modification is not new; virtually everything we eat has been genetically modified in some manner”(Ronald).
In an article titled “The Threats From Genetically Modified Foods” by Robin Mather, he has said that the use of glyphosate, a herbicide, can “significantly increase the severity of various plant diseases” which is very hazardous to the environment. In the same article “The Threats From Genetically Modified Foods” Robin Mather has stated that genetic transfers cannot occur in nature and are not so precise and predictable as people say they are. In another article called “Biotechnology and Genetic Engineering” from Issues & Controversies, it has been shown that genetic modification can affect many plants. For instance, the article stated that In Oregon, there was genetically modified grass that had affected plants nearby which began to ruin all of the crops near the genetically modified
Genetically modified foods or GM foods are foods that have been changed to improve the size of the product and to progress the efficiency of food production. Genetic engineering can be done on both plants and animals and are processed to make the desired characteristics that are required for selling. Genetically modified food has become a controversial topic because people have different viewpoints on which type of food is better for their health. Many protests were created to ban genetically modified foods because of the harm that it caused to the people and the environment. Although people have different opinions towards this topic, there are numerous advantages and disadvantages in producing and consuming genetically modified foods.
18 Apr. 2013. . "Genetically engineered foods: MedlinePlus Medical Encyclopedia." U.S National Library of Medicine. U.S. National Library of Medicine, 5 July 2012.
Genetically modified foods have a huge impact on our environment. One way that genetically modified foods are hurting our environment is that process can involve the exchange of genes between two totally different species. People are actually putting scorpion toxin into corn and fish antifreeze into tomatoes (De Greef). These changes in the plants make the plant able to with stand the attack of pests and weather, but it is still possible that the plant’s DNA will cross and make bad toxins. If a farmer plants a crop that has the resistance to herbicides, drought, cold, and pests those plants can eventually cross with weeds and then the farmer will end up with weeds that are resistant to everything too. Then the scientists will end up having to make the plants stronger to fight off the weeds, then the weeds will get stronger, and the cycle will keep on going. Another argument for the ban of...
The past twenty years have seen rise to a new burgeoning scientific field: genetically modified foods. During the plant breeding process, geneticists interfere with the reproduction and modify the genes of the new seedling by introducing a fragment of DNA from another organism that possesses the desired trait. With genetic modification, scientists can increase the pest, herbicide, cold, and drought tolerance so that the crop can survive in harsher climates. In some cases, the nutritional value can even be increased (Ulrich 9). Despite the obvious benefits of more nutritious foods and crops that are hardier and more resistant to harsher climates, there are some concerns surrounding GM foods. Each new alteration can cause an unforeseen allergic reaction, negate the effects of antibiotics, or potentially cause some adverse effects to the environment (Falkner 101). Every newly developed GM food must be tested on a case by case basis as there is no universal method that determines the safety of all modified components. As a result, long term effects of ingesting food with altered material are unknown.
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 inserting it into another plant. The new genetically modified plant will now have gained drought tolerance as well.
GMOs have their pros and cons, but in terms of their effects on biodiversity, the technology is almost solely negative in how it affects the environment. Genetically modified food can damage agriculture as it allows for less restraint on chemical usage which leads to stronger weeds and weaker soil. The crops can easily spread their genetically modified genome through the wind. GMOs damage living organisms by making nasty insects stronger and vital insects weaker. GM foods are correlated with the decline in mammal and bird health and the introduction of GM animals like salmon poses a threat to the ecosystem of wild fish. GMOs can also bear consequences in terms of genetic pollution and alteration through contamination and mutation to adaptation to evolution to species extinction. Indeed, some claims are not well supported and may require testing, like genetic alteration through consumption or the validity of correlating animal health deficits with GM feeds. However, overall, GM foods clearly affect the world negatively in terms of biodiversity and ecosystem impacts.
Scientists have been changing genomes of plants and animals by integrating new genes from a different species through genetic engineering, creating a genetically modified organism (GMO). Consumers in America have been eating GMOs since 1996, when they went on the market. There are benefits to genetically modifying crop plants, as it improves the crop quality and increases yield, affecting the economy and developing countries. But there are also negative effects from GMOs. Consumption of GMOs has various health effects on both body systems of animals and humans. GMOs also affect the environment, ecosystems and other animal species. The cons outweigh the pros in the case of GMOs.
The labeling of food made with genetically modified plants and produced from animals fed with genially modified food is completely voluntary. So basically the American consumer has no way to make informed choices. If by any chance any of these products cause adverse side effects in the future Americans are completely at the mercy of the retailers. The public has no way to make informed decisions of whether they want to eat genetically modified food or not. Upon further research I found out that there are over 40 plants varieties that have completed the federal requirement for commercialization. These approvals include foods with drugs in them, fish, fruits and nuts that mature faster, and plants that produce plastics. (NERC 2005)
U.S. Department of Energy Genome Projects. (2008). Genetically modified foods and organisms. Retrieved from http://www.ornl.gov/sci/techresources/Human_Genome/elsi/gmfood.shtml
Genetic engineering is a way in which specific genes for an animal or plant can be extracted, and reproduced to form a new animal or plant. These new organisms will express the required trait for that gene. This practice is a very controversial topic within the scientific world. It is being implemented in various areas such as agriculture even though there are many alternatives that can be found for genetic engineered crops, such as organic materials and reducing leeching of the soil. The controversy regarding this practice occurs as it is believed to contribute both negative and positive implications and dangers, not only to oneself but the environment as a whole. Genetic engineering increases the agricultural economy, the yields of agricultural produce, and also causes negative effects on the ecosystem.
Biotechnology is a group of technologies that work together with living cells and their molecules to prolong life (Keener and Hoban et al., 2014). Today biotechnology can be used in a variety of ways such as in an industrial setting where they use it to create enzymes to synthesize chemicals, in an environmental setting where they use it for waste and pollution prevention and lastly it can be used in medical applications such as in pharmaceuticals, genetic engineering, DNA fingerprinting and in lastly it can be used in stem cell therapy (Keener and Hoban et al., 2014). Everyone in today’s society depends and uses biotechnology in one form or another, biotechnology is essential for our health and wellbeing.
New opportunities and challenges of human health are presented by the application of biotechnology to food. Biotechnology helps improve the quality and nutrition of foods consumed by people,this helps their health. Foods produced through biotechnology has been around for more than 15 years but people are still debating about how safe the food is. Biotechnology still have to plays its role by increasing agricultural productivity,especially in light of climate change. I believe that biotechnology is still going to help better th nutritional value of food. It can also assist farmers to increase their productivity so that they can feed their families and many people across the globe. The whole world should be using the food biotechnology because it has the ability to change the world,it can be to end world hunger .