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.
The term ‘genetic engineering’ covers several methods of manipulating genetic material, otherwise known as genetic manipulation; recombinant DNA technology and gene therapy in humans(Atkinson, 1998). This technique is not only used for genetic transfer between plants; but, genes from non-plant organisms can be used as well. A known example of this is the transfer of the B.t gene found in corn and other crops. The B.t gene, or otherwise known as ‘Bacillus thurngiensis (Bt)’; is a naturally occurring bacterium that create proteins with crystals that are fatal to insect larvae (Whitman, 2000). These B.t genes have
The first and best known example is the various sub-species of the bacterium ‘Bacillus thurnigenesis’. As mentioned earlier, these produce crystalline proteins otherwise known as ‘Δ-endotoxins’ or ‘cry proteins’ (Ellis et al, 2002). These endotoxins attack the digestive tract of the insect. The Bt spores then leaks from the gut and germinate in the insect causing death within few days. Bacillus thurnigenesis (Bt) Δ-endotoxins are well known for their ability to control a variety of insect pests, including members of Lepidoptera, Coleoptera, and Diptera
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...
In conclusion Bacillus anthracis is a bacterium that lives thrives in soil. It can infect its hosts in many ways. It can be lethal if not treated with the right antibiotics or surgery. Outbreaks are not common but when they did occur is was due to vegetative spores that were released from the bacterium. Anthrax infections can be complicated and symptoms can either be noticeable or not. It can be dangerous.
GMO stands for a ‘genetically modified organism’. A GMO is artificially developed by scientists to produce specific results such as sustain life through a drought or produce a greater quantity of fruit per plant (Monsanto Corporation:1999). This practice began centuries ago when plants and animals were selectively bred and microorganisms were us...
Do you know what you're really voting for? Iowan farmer Reg Clause suggests you may not in his column, “Say ‘no’ to GMO labeling.” Reminding readers that general election day has come, he attempts to convince us that a certain law should be voted against. The proposed legislation would mandate all foods that contain genetically modified organisms, also know as GMOs, to display a warning label on their packaging. He argues that this would be detrimental to the good name of these types of foods when they do not deserve to be shamed. I agree that the genetically engineered crops should not be labeled, but not because that would tarnish their name. However, the reasoning for my opinion comes from the perspective that it would not only be impractical
One of the most prominent crops in the GMO industry is Bt corn. The Bt pesticide stands for Bacillus Thuringiensis. Scientists transferred the Bt gene into the corn to create a crop that produces its own pesticides. As the corn matures, it grows stronger poi...
GMO`s are starting to rapidly take over our food supply, but what exactly is a GMO? A GMO is a make up of DNA that is combined forcefully with a plant or animals DNA, and creates a new version of it. Seeing these products sold in stores for the first time people question what the change is from the natural, and organics, because when someone reads GMO they wonder if it is healthy and safe to consume.
Bacillus anthracis or anthrax is bacteria that infect thousands of people a year worldwide. Mostly found in the hinds and hair of grazing animals like cattle and sheep, the bacteria can stay dormant for years until contacted. Contact can occur through broken skin, eating infected meat, or inhaling infected dust from hides through the mouth or nostrils. Normal contact through the skin begins forming malignant skin ulcers that are dark black in appearance. If left untreated, the blisters lead to blood poisoning and eventually death. Eating contaminated meat not fully cooked can cause intestinal infection also leading to death. Surprisingly, many people survive contact of the skin and very few cases of intestinal infection exist. However, inhalation of infected dust or spores are much more deadly because the symptoms resemble a common cold...
“Genetically Modified Organisms”, or in other words GMO, is a method of altering mirco-organisms which include plants, fish, yeast, bacteria and mammals. These organisms have been engineered with increased carbon capacity and a smaller need for nitrogen fertilizers. These organisms are made from the DNA of bacteria and the DNA of other plants and animals. Thus genetically diverse, these various combinations cannot naturally happen in nature. All GMO’s are created to defy any herbicide or insecticide it comes in contact with. GMO’s are the origin of genetically modified foods that we see every day.
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...
According to an article titled “Genetically Modified Foods Eaten” regularly by Linda A. Johnson today, essentially 40% of the foods we eat are genetically modified, unless you eat organic foods and/or you grow your own. Most products containing corn, soil, canola oil, or cottonseed oil contain genetic modification. One of the biggest genetic modification company is Monsanto (Johnson). She goes on to say many Americans don’t even know they are consuming genetically engineered foods. In “Genetically Modified Foods Confuse Consumers” by Mary Clare Jalonick writing in the Washington Times, has talked about how this is because the FDA does not require them to be labeled. Jalonick has said, “Genetically modified foods are plants or animals that have
Genetically modified organisms (GMOs) are a highly debated topic all around the world. Someone from each side of the debate has an argument as to why GMOs should or should not be produced. Unfortunately, many others who are consuming these genetically modified products do not know that they are eating them and they do not know what they are. According to The American Heritage Dictionary online edition, a GMO is “an organism whose genetic characteristics have been altered by the insertion of a modified gene or a gene from another organism using the techniques of genetic engineering.” For example, corn had been modified to withstand herbicides giving farmers the ability to spray their crops with much more pesticides. In return, these pesticides
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.
According to scientists, genetically engineering crops contributes to their quality. Crops that have been genetically modified to have a particular trait can decrease the amount of herbicides needed for growing that crop. Additionally, genetically modified (GM) crops can help third world countries, where malnutrition is common. For example, to help diminish nutrient deficiencies in developing countries, “plans were underway to develop a golden rice that also has increased iron content”(Whitman 2). In addition, GM crops can be modified to be able to “withstand the environmental challenges of drought, disease, and insect infestation” (Swenson 1). Growing GM crops can also result in fruits and vegetables that stay fresh for a prolonged period of time and taste better.
Genetically modifying organisms is far from a recent undertaking. Guiding and reshaping animals and plants to make them more desirable, has been a facet of humanity for more than 14,000 years (Kingsbury). The very act that changed human race forever, our transition from hunter-gatherers to farmers and herders, was a form of gene manipulation. Domestication of plants and animals is the simplest form of controlled reshaping of an organism’s genes, through artificial selection. That means that individuals that had similar traits were bred together to propagate and emphasize desired characteristics. However, genetic engineering as in the direct manipulation of an organism using biotechnology, was first attained by Herbert Boyer and Stanley Cohen in 1973 (Arnold). All they did was insert a gene into a bacterium, to make it resistant to a particular antibiotic. Little did they know that their microscopic act would instigate the whole controversy-engulfed issue of GMOs or genetically modified organisms (Genome News
[7] Oliveira HG, Gomes G, Morlin Jr JJ, Von Zuben CJ et al. The effect of Buscopan on the development of the blow fly chrysomya megacephala. Journal of Forensic Sciences 2009; 54:202–206.