Genetically Modified Food And Crops Biology Essay

Genetically Modified Food And Crops Biology Essay Genetic modification of crops and food stuffs is one of the major controversial debates in the world. There have been doubts on the safety of genetically modified foods especially in the area of human health and environmental degradation. Many people have fears that their health could experience unforeseeable effects by altering the genetic content of a plant. Genetic modification might have resulted to the growing of pesticide and herbicide tolerant plants but the new technology has dangerous effects on human health and the environment. Genetic modification of crops has led to reduced effectiveness of herbicides and pesticides, transfer of genes to species that are not targeted, and has caused harm to important organisms. It has also caused allergies to most people in different parts of the world and raised economic concerns. Though the supporters of the new technology argue that it has led to increased crop yields and alleviation of nutrition deficiencies, genetic modification has obviously caused more harm than good. Introduction Genetically modified foods have been used widely in the 21st century and have splashed in the media lately. Public awareness groups and European environmental agencies have been frequently protesting against genetically modified foods and crops for years, and the latest controversial studies regarding the effects of GM corn pollen on sovereign butterfly caterpillars have prompted the issue of genetic engineering hence bringing it to the front position of public awareness in the United States. As a result, the United States Food and Drug Administration (FDA) has held three public meetings in Washington D.C., Oakland, California, and Chicago to importune opinions by the public and start the procedure of establishing an effective regulatory method for government sanction of genetically modified foods. GM foods have resulted to adverse effects especially in regard to environmental hazard, human health risk, and economic concerns. In respect to this, the government should discourage the g rowing of genetically modified crops and establish policies that ensure GM foods and crops are labelled (Institute of Medicine U.S. Committee on Identifying and Assessing Unintended Effects of Genetically Engineered Foods on Human Health 23) Literature Review Genetically modified foods and crops refer to plants scientifically created for animal or human consumption using the most recent molecular biology techniques. Basically, these crops are modified in the laboratory to improve nutritional content. Traditionally, enhancement of plants nutritional content was achieved through breeding but such conventional crop breeding methods proved to be time consuming and not quite reliable in terms of accuracy (Ferry and Gatehouse 59). On the other hand, genetic engineering creates crops that rapidly exhibit the exact desired traits with great accuracy. For instance, its possible for a plant geneticist to cut off a drought tolerance gene and insert it to a different plant. Consequently, the genetically-modified plant will become drought tolerant after acquiring the essential gene. Surprisingly, its also possible to transfer non-plant organisms besides the plant-to-plant gene transfer. The Bt or Bacillus thuringiensis, genes transfer to crops such as corn is a good example of non-plant organisms genes transfer. Bt is a bacterium that occurs naturally and produces insect larvae lethal protein crystals. Moreover, the Bt protein genes are transferred into corn, making it possible for the corn to generate pesticides of its own for instance the European corn borer (Ferry and Gatehouse 60). Pesticide resistant rape plant is on of the genetically modified crops. Scientific researchers have introduced a foreign gene to the rape plant which gives the plant the capability to resist certain pesticides. Consequently, a farmer is able to safely spray his genetically engineered rape plants with pesticides and destroying harmful pests without killing the crops. However, there is a possibility that the introduced genes may be transferred to the pests hence making them resistant to the pesticide as well and the plant spray becomes ineffective (Institute of Medicine U.S. Committee o n Identifying and Assessing Unintended Effects of Genetically Engineered Foods on Human Health 24). In this context, its possible for rape plants to pollinate the navew weed which occurs in rape crop fields. The navew weed acquires resistance to pesticides after gaining the introduced genes from the rape plants. Another example of GM crop is the golden rice which has been genetically engineered to increase its nutrition content by introducing an extra amount of vitamin A. More precisely, golden rice contains the beta-carotene element which is converted into vitamin A by the human body. Beta-carotene is the element responsible for the orange colour found in carrots and the golden colour in this particular rice. However, for the rice to produce beta-carotene, two genes from daffodils and one from bacterium must be implanted (Ferry Gatehouse 60). Methodology The study on genetically-modified crops/foods is very important and adequate information is required to determine the possible downfalls of the new technology. Books by reputable authors will be used to gather sufficient information on the topic. Additionally, relevant articles touching on the current progress of the new technology will also be used to realize recent discoveries. Discussion Natural breeding techniques have been used safely for the past numerous thousands of years. On the contrary, Genetically modified plant technology abrogates reproductive processes that occur naturally, selection takes place at the single cell stage, the process is extremely mutagenic and more often than not breaches genera barriers even after being in use for about ten years. In spite of these differences, the assessment on the safety of genetically modified crops is often based on the substantial equivalence idea such that In case a new crop or food is found to be considerably equivalent in nutritional and composition characteristics to an already existing crop/food, it may be regarded as harmless as the conventional food/crop (Gordon 144). Nevertheless, a number of animal studies designate serious health risks linked to GM crop/food consumption including dysregulation of genes related to synthesis of cholesterol, accelerated aging, and protein formation. Religious organizations, Environmental activists, professional organizations, public interest groups, and other government and scientist officials have raised their concerns about genetically modified foods/crops. Agribusiness pursues profits showing minimal concern for possible environmental and human health hazards as well as economic concerns. Environmental hazards Reduced pesticide and insecticide effectiveness; most insects and pests are likely to develop resistance to Bt just like some mosquito species have developed resistance to DDT pesticide which has already been banned from the market. In addition, there is a possibility that insects and pests may develop resistance to pesticides produced by genetically-modified crops. This will eventually lead to destruction of large amounts of crops both in the field and in the store. Harm to other organisms: In reference to a laboratory study published last year, 2009, pollen from Bacillus thuringiensis corn caused a high rate of deaths in monarch butterfly caterpillars. These caterpillars do not consume corn but milkweed plants, but there is a possibility that pollen from Bt may be blown by wind onto the neighbouring milkweed field and hence the caterpillars will consume them and die. Even though the study wasnt conducted on natural field, the results are likely to support this viewpoint. Unfortunately, Bacillus thuringiensis toxins indiscriminately kill many insect larvae species, its impossible to produce a Bt toxin that only kills pests that are crop-damaging and remain safe to other insects (Heller 227). However, this study is under re-examination by the United States Environmental Protection Agency (EPA), USDA, and other non-governmental research agencies. Interestingly enough, data from recent studies suggests that data from the original study may not have been accurate. Currently, the debate on the results of these studies is still on-going, and the possible risk of harm to organisms that are not targets will need further evaluation (Institute of Medicine U.S. Committee on Identifying and Assessing Unintended Effects of Genetically Engineered Foods on Human Health 50). Gene transfer to non-target species: Another major concern is that crops modified for herbicide tolerance and field weeds might cross-breed, hence leading to the transfer of the resistance genes from plant crops into the adjacent weeds. The resulting weeds will be super and are more likely to become tolerant to the herbicide as well. Other new genes may cross into non-engineered plant crops adjacent to GM crops. The interbreeding possibility is shown by the farmers defence against labelling of GM foods. A good example is the Monsanto case, where the company has filed exclusive rights intrusion lawsuits against GM crops farmers (Gordon 144). The only possible ways through which GM crop farmers can resolve these environmental hazards is by creating male sterile plants. This will ensure that non-target species do not receive new genes from GM crops. On the other hand, the farmers can modify the GM crops in a way that the pollen doesnt consist of the introduced genes. Consequently, there would be no possibility of cross-pollination and harmless insects would survive after consuming pollen from GM crops (Ferry and Gatehouse 121). Another probable solution will be creating buffer zones around GM crop fields. For instance, non-GM corn can be cultivated to surround a Bt. GM corn field, although the non-GM corn should not be harvested. Harmless or beneficial insects would take refuge in the non-GM corn, and pests can be allowed to wipe out the non-GM corn field without developing resistance to Bacillus thuringiensis pesticides. The wind-blown pollen will not cross over to weeds or other crops since the buffer zone wouldnt let it. Nonetheless, this planting method maybe unpractical if large buffer zone acreage is required (Ferry and Gatehouse 150). Human health risks Allergenicity: Allergy emergence is one of the most common human health threat posed by genetically modified foods (Puszta 2001). In the event of genetic modification, a protein with allergic effects could be transferred to a different crop. Additionally, allergic effects could be exacerbated through the biotechnology process, and new proteins that become allergens could be created in GM crops. For example, lots of children and grown-ups in Europe and the United States have developed allergies that are life-threatening to foods such as peanuts. There is likelihood that plant may create a new allergen or cause an allergic reaction in susceptible individuals. A good example is the Brazil nut-to-beans genes transfer proposal that was rejected because of its possible allergic reactions. However, GM foods may require extensive testing in order to avoid possible consumer harm through allergies (Gordon 144). Unknown effects on human health: Transferring or introducing alien genes into food crops may result to unexpected negative effects on human health. An article recently published in Lancet scrutinized the effects of genetically-modified potatoes on the digestive system in rats. This study argued that there were significant differences in the intestines of GM potato fed rats and those of rats fed naturally cultivated potatoes. Until now critics argue that this results, like the monarch butterfly data, is faulty and doesnt hold up to scientific examination. Furthermore, the gene transferred into the potatoes was lectin, a snowdrop flower already known to be poisonous to mammals. The research scientists who produced this variety of potato decided to use lectin gene just to test the methodology, because these potatoes were not intended for animal or human consumption (Gordon 143). Economic concerns Introducing GM foods to market is a costly and lengthy process, and certainly agri-biotech companies aspire to ensure a cost-effective return on their investment. Several new plant genetic-modification technologies and GM crops/foods have been unapproved and patent breach is a great concern of agribusiness. Yet consumer advocates are concerned that patenting the new plant varieties is likely to raise seed prices so high such that small-scale farmers and third world nations will be unable to come up with the money for GM crop seeds, thus increasing the gap between the rich and the poor. People are hoping that in a compassionate gesture, more non-profits and companies will offer their products at a fair cost to poor countries (Ferry and Gatehouse 172). Enforcement of patent may turn-out to be difficult, as the farmers contention that they unwillingly grew Monsanto-modified strains when their crop plants were cross-pollinated. Introducing a suicide gene into GM plants would be an excell ent way of contesting possible patent breach. These crop plants would be feasible for one planting season and would produce seeds that dont germinate since they will be sterile. Farmers would have to purchase a fresh supply of planting seeds yearly. However, this would strain farmers financially especially in third world nations where they cannot afford to purchase seeds every year (Ferry and Gatehouse 173). In contrast, genetic-modified crops have been known to exhibit pest resistance. Insect pests can cause serious crop destruction and loss, hence resulting in distressing financial loss for farmers and prolonged starvation in third world countries. Most farmers buy and use many tons of insecticides and pesticides yearly. Moreover, pesticides can cause potential health hazards and excessive use can contaminate water sources and the environment. Cultivation of genetically-modified crops can eliminate the need for pesticides hence minimizing on costs. However, this method may harm pests that are important for crop growth processes such as pollination. Apart from this, genetically-modified plant crops exhibit herbicide tolerance. Considering that physical weed removal may not be cost-effective for certain crops, farmers are forced to spray large quantities of herbicides to destroy weeds which is expensive and time-consuming. Cultivating plant crops that are genetically-modified to resist a powerful herbicide might help in preventing environmental contamination by minimizing on the herbicides used. Despite the risks involved in genetic-modification of crops/foods, the biotechnology industry continues to claim that genetically-engineered crops can feed the entire world by producing higher crop yields. Nutrition Malnutrition has been reported to be a major problem in developing countries where poor people depend on crops such as rice as their key staple food. Nevertheless, such foods do not contain sufficient amounts of nutrients necessary to prevent malnutrition. If such crops were to be genetically-modified to contain extra minerals and vitamins, deficiencies of nutrients could be alleviated. However, an up to date report by Union of Concerned Scientists analyzed twelve academic studies and indicated that GM foods form a small percentage of the worlds produced food. Bt. corn proved to be the only exception since a high yield in GM corn was reported. As a matter of fact, the report further sated that the significant increase in crop yields was as a result of improvements in trad itional breeding (Institute of Medicine (U.S.). Committee on Identifying and Assessing Unintended Effects of Genetically Engineered Foods on Human Health 101). Conclusion Genetically-modified foods/crops may be the potential solution to many of global malnutrition and hunger problems, and to aid in preserving and protecting the environment by minimizing dependence upon chemical herbicides and pesticides, and increasing crop yield. Nevertheless, there are several challenges ahead for farmers and national governments, particularly in the areas of, international policy, regulation, safety testing, and GM food labelling. Needless to say, genetic-modification is the inevitable future wave and that the society may not afford to ignore this technology though it has several dangers which outweigh its benefits to both the consumer and the farmer. However, members of the society must carry on with caution to avoid causing environmental hazards and unintentional harm to human health as a result of enthusiasm for this new technology. Recommendations Considering that GM foods pose serious health risks in the areas of allergy, reproductive health, metabolic, and immune function, farmers ought to adopt the precautionary principle. This principle is the key European Union environmental regulatory tool and health policy which has formed numerous international agreements. The precautionary approach is to be applied by nations in accordance with their capabilities in protecting the environment. In case of serious threats of irreversible damage, presence of limited scientific certainty should not be utilized as a reason for postponing gainful measures to prevent degradation of the environment. Bearing the precautionary principle in mind, physicians should educate the public, patients, and the medical community to avoid genetically-modified foods if possible and offer educational materials on health risks arising from GM foods. Moreover, the scientific and medical community should gather information related to health effects resulting fr om the consumption of GM foods. This may include conducting research on safe and effective methods of considering GM foods effects on human health. Lastly, implementing long term labelling and safety testing methods of genetically-modified foods/crops will be an important factor.

Socrates Essays -- essays research papers

Socrates Philosophy was both serious and dangerous, Socrates chose to ignore both. Ignoring the first made him one of the most engaging of all philosophers, ignoring the second was to cost him his life. He was born in a middle class home in Athens, in 470 BCE. His parents were Phaenarete and Sophroniscus. His mother had a reputation for her patient and intuitive skill in delivering babies in and around the neighborhood. The latter, his father was a craftsman, stonecutter by trade.   Ã‚  Ã‚  Ã‚  Ã‚  As a young boy, Socrates was teased in school about his appearance, and often would prey to the Gods to make him beautiful both inside as well as outside. He was known for asking many questions as a child, because he was very curious about things, what they were, what importance they had? Crito noticed that Socrates in a way was beginning to think as a philosopher, always looking for the meaning of things.   Ã‚  Ã‚  Ã‚  Ã‚  As Socrates gradually began to mature and grow older, he did not see much of his friends. They would always be down at the gymnasium working seriously at the outdoor exercises. He did not like to work out like his friends or be a stonecutter like his father because he knew that sort of thing was not for him. He thought about everything in a more abstract way.   Ã‚  Ã‚  Ã‚  Ã‚  The Gods during Socrates time seemed to be further away from humanity, they did not disguise themselves as humans to help or punish them anymore (1). He only knew of them from old stories, myths, and Homer. He had a voice in him that stopped him from doing certain things as he was about to, and he thought that that was gift from the gods. He knew that goodness was the very mark of the gods and that is why he tried his best to be just towards everything and everybody.   Ã‚  Ã‚  Ã‚  Ã‚  As a teen Socrates talked and studied with many other accomplished scientists and philosophers, whose names are not known. Later, from when he was eighteen to twenty-four he was in the military in the beginning of the Peloponnesian War. Along with, the rest of the army, he walked fourteen miles in one day to make it to Athens on time. In the tents, he always won the philosophical arguments between his friends, for he had pondered the subjects himself many times. If it had not been for Pythion, an experienced guide of Greece, they would probab... ...its represent Socrates as the great ironist of philosophy. He knows but ironically denies that he knows. He teaches but ironically denies that he teaches. He claims that knowledge is identical to virtue, ironically disclaiming the one yet implying that he possesses the other. Even when he is on trial for his life, he is what he says he is not and is not what he says he is. He is perpetually masked in order to stir up in those he examines a fertile and productive search for virtue. (8) ENDNOTES 1Cora Mason, Socrates: The Man Who Dared To Ask (Boston: The Beacon Press, 1957) 22-27. 2Plato, The Trial and Death of Socrates: Four Dialogues (New York: Dover Publications, 1992) 20-25. 3Plato 30-35.   Ã‚  Ã‚  Ã‚  Ã‚  4Plato 41.   Ã‚  Ã‚  Ã‚  Ã‚  5Leo Strauss, Socrates and Aristophanes (New York/London: Basic Books Inc., 1966) 311.   Ã‚  Ã‚  Ã‚  Ã‚  6Strauss 14.   Ã‚  Ã‚  Ã‚  Ã‚  7James W. Hulse, The Reputations of Socrates (New York: Peter Lang Publishing Inc., 1995) 0.   Ã‚  Ã‚  Ã‚  Ã‚  8C.D.C. Reeve, Socrates in the Apology: An Essay on Plato’s Apology of Socrates (Indianapolis/Cambridge: Hackett Publishing Company, 1989) 184.

Intro to Bio Essay

1. What patterns do you observe based on the information in Table 1? The patterns that I observe based on the information in Table 1 is that the more dissolved oxygen contained in the water, the more fish are observed in that particular area of water. 2. Develop a hypothesis relating to the amount of dissolved oxygen measured in the water sample and the number of fish observed in the body of water. The hypothesis that I would develop relating to the amount of dissolved oxygen measured in the water sample and the number of fish observed in the body of water is if there is more dissolved oxygen contained in the water, there will be more fish present in the area the water sample is being taken from. 3. What would your experimental approach be to test this hypothesis? My experimental approach in order to test this hypothesis would be to test the dissolved oxygen contained in different areas of water and keep track of the fish in those areas and then compare the results. 4. What are the independent and dependent variables? The independent and dependent variables are the independent is the dissolved oxygen and the dependent is the fish. 5. What would be your control? What would be my control is no control. 6. What type of graph would be appropriate for this data set? Why? The type of graph that would be appropriate for this data set would be a line graph because it will support the hypothesis that I came up with as well as provide clear results. 7. Graph the data from Table 1: Water Quality vs. Fish Population (found at the beginning of this exercise). You may use Excel, then â€Å"Insert† the graph, or use another drawing program. You may also draw it neatly by hand and scan your drawing. If you choose this option, you must insert the scanned jpg image here. 8. Interpret the data from the graph made in Question 7. The data from the graph shows the population of fish on the Y axis and the dissolved oxygen on the X axis. The population of fish increases in the graph because of the increased amount of dissolved oxygen found in the body of water.

Learning Integration in My Counseling Courses - 782 Words

I have been attending Emmaus Bible College for two years now and I have been taking many different courses. Before taking Counseling foundations I had never really thought about how I could integrate all my courses. What I mean is not separating each course into their own box not touching another but instead trying to incorporate all of my classes into each other, seeing how they affect or can affect each other. But after thinking about it for a while I came to the conclusion that if I believe that all true truth is God’s truth then I should believe that everything I learn are related and are filtered through my own Biblical worldview and theology. So the rest of this paper will be me explaining how I have learned how I can integrate each of my classes that I have and am presently taking. We will see how my Bible/Theology courses can affect my youth ministry courses, and how each of those courses affect my psychology courses. 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