Advantages And Disadvantages Of Genetically Modified Organisms Biology Essay

Advantages And Disadvantages Of Genetically Modified Organisms Biology Essay The benefits and risks of any particular genetically modified crop depend on the interactions of its ecological functions and natural history with the agro-ecosystem and ecosystems within which it is embedded. These evolutionary and ecological factors must be considered when assessing genetically modified crops. We argue that the assessment of genetically modified crops should be broadened to include alternative agricultural practices, ecosystem management and agricultural policy. Such an assessment ecological services that support it. The benefits of genetically modified crops should be compared to those of other means of agricultural intensification such as organic farming, integrated pest management and agricultural policy reform. A gradual and cautions approach to the use of genetically modified crops that relies on a truly comprehensive risk assessment could allow people to reap substantial benefits from genetically modified crops while mitigating their serious risks. INTRODUCTION Genetically modified organisms ( GMOs ) is an organism whose genetic material has been altered using genetic engineering techniques. These techniques generally known as recombinant DNA technology, use DNA molecules from different sources which are combined into one molecule to create a new set of genes. This DNA is then transferred into an organism, giving it modified or novel genes. Genetically Modified Organisms can be produced by gene cloning methods in which a non-native gene is introduced and expressed in a new organism. Generally the new protein has also been somewhat modified or engineered for proper expression in the new host. In particular, differences between microorganisms and eukaryotic cell must be overcome, such as the presence or absence of introns, occurance of DNA methylation and certain post-translational modifications to the protein itself for proper transport within or between cells. The advent of PCR and gene sequencing methods have opened up the door to all sorts of manipulative techniques for changing the structure of protein through genetic alterations. The introduction of bacterial genes into cash crops, to enhance their growth, nutritional value or resistance to pests, is becoming rather common place in plant technology. One example that has made frequent headlines is the introduction of bacterial genes for natural pesticides into plants in order to eliminate the need for chemical pesticide use. The drawback to this technology is public concern over the consequences of ingesting these natural pesticides. Problems such as these might be alleviated by site-specific expression of the gene or control of expression throughout the lifecycle. For example, it might cause less concern if expression of a pesticide gene in the leaves of young plants could be used to prevent foliage from being destroyed early on without expression in the fruit later in the lifespan. Advantages of Genetically Modified Organisms The world population has topped 6 billion people and is predicted to double in the next 50 years. Ensuring an adequate food supply for this booming population is going to be a major challenge in the years to come. Genetically modified foods promise to meet this need in a number of ways: Pest resistance Crop losses from insect pests can be staggering, resulting in devastating financial loss for farmers and starvation in developing countries. Farmer typically use many tons of chemical pesticides annually. Consumers do not wish to eat food that has been treated with pesticides because of potential health hazards and run-off of agricultural wastes from excessive use of pesticides and fertilizers can poison the water supply and cause harm to the environment. Growing genetically modified foods such as B.t. corn can help eliminate the application of chemical pesticides and reduce the cost of bringing a crop to market. Herbicide tolerance For some crops, it is not cost-effective to remove weeds by physical means such as tilling so farmers will often spray large quantities of different herbicides (weedkiller) to destroy weeds, a time-consuming and expensive process, that requires care so that the herbicide doesnà ¢Ãƒ ¢Ã¢â‚¬Å¡Ã‚ ¬Ãƒ ¢Ã¢â‚¬Å¾Ã‚ ¢t harm the crop plant or the environment. Crop plants genetically-engineered to be resistant to one very powerful herbicide could help prevent environment damage by reducing the amount of herbicides needed. For example, Monsanto has created a strain of soybeans genetically modified to be not affected by their herbicide product Roundup. A farmer grows these soybean which then only require one application of weed-killer instead of multiple applications, reducing production cost and limiting the dangers of agricultural waste run-off. Disease resistance There are many viruses, fungi and bacteria that cause plant diseases. Plant biologists are working to create plants with genetically-engineered resistance to these diseases. Cold tolerance Unexpected frost can destroy sensitive seedlings. An antifreeze gene from cold water fish has been introduced into plants such as tobacco and potato. With this antifreeze gene, these plants are able to to tolerate cold temperatures that normally would kill unmodified seedlings. Drought tolerance/salinity tolerance As the world population grows and more land is utilized for housing instead of food production, farmers will need to grow crops in location previously unsuited for plant cultivation. Creating plants that can withstand long period of drought or high salt content in soil and groundwater will help people to grow crops in formerly inhospitable places. Nutrition Malnutrition is common in third world countries where impoverished people rely on a single crop such as rice for the main staple of their diet. However, rice does not contain adequate amounts of all necessary nutrients to prevent malnutrition. If rice could be genetically engineered to contain additional vitamins and minerals, nutrient deficiencies could be alleviated. For example, blindness due to Vitamin A deficiency is a common problem in third world countries. Pharmaceuticals Medicines and vaccines often are costly to produce and sometimes require special storage conditions not readily available in third world countries. Researchers are working to develop edible vaccines in tomatoes and potatoes. These vaccines will be much easier to ship, store and administer than traditional injectable vaccines. Phytoremediation Not all genetically modified plants are grown as crops. Soil and groundwater pollution continues to be a problem in all parts of the world. Plants such as poplar tress have been genetically engineered to clean up heavy metal pollution from contaminated soil. Disadvantages of Genetically Modified Organisms The pros and cons for using genetically modified organisms ( GMOs ) are vast and varied but there is little argument over the uncertain consequences of this relatively new science. The pace at which GMOs have found their way into the food supply is what frightens many opponents, as long-term risk assessments wonà ¢Ãƒ ¢Ã¢â‚¬Å¡Ã‚ ¬Ãƒ ¢Ã¢â‚¬Å¾Ã‚ ¢t be available for many years. Long-term health effects The science of genetically modifying organisms is in its infancy, coming online in earnest in the mid-1990s. Pressure from agricultural interests and the scientific community eager to prove the viability of the process has led to what some would call an irresponsible rush to market of these products. More than 60 percent of the products in most U.S. grocery stores are derived from sort of genetically altered plant or animal, notes Nina Fedoroff, a molecular biologist at Penn State University in the spring 2007 issue of Science Journal. There simply hasn;à ¢Ãƒ ¢Ã¢â‚¬Å¡Ã‚ ¬Ãƒ ¢Ã¢â‚¬Å¾Ã‚ ¢t been enough time to study the long-term health effects on humans from eating genetically altered foods. Gene spilling Many of the arguments against bio-engineered food stuffs focus on the law of unintended consequences. It is unclear what effect, if any, genetic pollution from inadequately sequestered populations of genetically modified crops would have on the surrounding wild varieties. Releasing pollen from genetically altered plants into the wild via wind and insects could have dramatic effects on the surrounding ecosystem but there is no long-term research yet available to gauge the impact. Reduced biodiversity Biodiversity even within a species or genus, keeps plant and animal population viable. If a particular virus for example, affected corn in Northern Iowa but the slightly different variety of corn grown on an adjacent farm was immune, only the portion of the crop susceptible to the virus would be lost. As genetically engineered crop consume more and more acreage, the number and variety of wild species is reduced. Such as alignment threatens the entire supply as pests and diseases repelled by just one or a few genetically altered varieties develop resistance to those defenses. In a doomsday scenario, a lone pathogen could wipe out an entire harvest nationwide and spawn years of underproduction as the agriculture industry struggles to recover and combat the threat. Cross-pollination The potentially negative environmental impacts of GMOs are numerous, and many are as yet unknown and could be irreversible. These include the loss of flora and fauna biodiversity, unintended harm to other organisms and reduced effectiveness of pesticides. According to the Food and Agricultural Organization of the United Nations, one of the biggest concerns is the creation of super weeds: the unintentional transfer of herbicide resistance genes from desired crops to weeds. Some of these concerns, however, are the same concerns that could occur with breeding. Genetic consequences The artificial insertion of genes into organisms could destabilize that organism, encouraging genetic mutations that could be detrimental either to the environment, to humans or both. Insertion of the desired gene into a crops genome could activate or deactivate other genes, causing unintentional consequences as well. For example, genes that orchestrate the precise development of tomatoes could be de-activated, leaving tomatoes rotting on the vine before maturation. Long-lived organisms, such as trees, would be most at risk with consequences unknown for perhaps years. Its entirely possible they would no longer bear fruit, or they would have weak trunks. Characteristics of bark we may rely upon for paper products may disappear. The possibilities are essentially endless. Furthermore, changes in gene expression of genes that already exist in the organism may have negative consequences by interacting with the product of the inserted gene. For example, the gene coding for the red color of berries could interact with the inserted disease resistance gene creating an entirely new protein that perhaps would cause cancer after the berries were eaten by humans. As of 2010, many of the consequences are purely speculative and true issues would not be known for perhaps years. Animals GMOs pose a potential risk to insects, particularly those involved in pollination of GMO crops, as well as birds, insects, organisms in soils, and water. The impact of GMO pollen in bees gut or ingestion by bacteria is not known. One fear is that the insects may develop resistance to the pesticides after ingesting GMO pollen, creating swarms of pesticide-resistant bugs. Intellectual property The risk of GMOs to the world economy may be significant. It is entirely possible that world food production would be dominated by a few companies, increasing the dependence of developing countries on industrialized nations. Foreign exploitation of natural resources, labeling issues and scientific advances skewed to interests of richer countries are just a few of the concerns. Although eventually more efficient and economical, initial research and development costs involved in bringing GMO products to market are substantial. To offset these costs, companies patent their products. Infringement issues are a major issue. Human health Human health is also at stake. GMO plants may create new allergens or unintentionally confer antibiotic resistance in humans. As part of the technique, genes that confer antibiotic resistance are inserted into GMOs as markers but they could confer resistance to these antibiotics when consumed by humans. However, the gene introduced into the potatoes was already known to be toxic to mammals. Researchers simply chose the gene to test the technique and it was never intended for human or animal consumption. As pollen spreads, pharmaceuticals derived from plants and fed to animals are then consumed by humans, also with unknown consequences. Food supply at risk Genetically modified seeds are a patented product, and in order to purchase the seeds customers must sign an agreement for use with the seed manufacturer. As the reliance on GM seeds expands world wide, concerns about food supply and safety continue to escalate. Genetically engineered seeds are identical in structure, and if a problem affects one particular crop a major crop failure can result. Environmental destruction Most GMO seeds are genetically engineered to be herbicide tolerant, resistant to insect infestation and disease. Environmentalists worry that the characteristics of GM crops may encourage farmers to increase their use of herbicides and pesticides, which will raise human consumption of dangerous toxins. GM crops also manufacture their own pesticides, which puts further poisons into humans and soil and may cause unforeseen changes in the environment. Another concern is that toxins contained in the GMO plants may harm other organisms, such as monarch caterpillars, bees and birds. The pesticide found in genetically modified cotton and corn is implicated in the deaths of poultry, cows, horses, sheep and buffalo worldwide. Conclusion As a nutshell, although Genetically Modified Organisms have a lot of advantages but still face many ethical issues related to the growing and consumption of genetically engineered crops. They hold potential to greatly increase the nutritional value of food as well as the productivity of crops, while at the same time provide many safety as well environmental concerns. These decisions need to be looked at by all of humanity since everyone is directly affected by the choices. While each person can read these details and come to different conclusion on the value of genetically engineered foods as well as the ethical choices being made by the companies in charge of producing these foods. The ultimate choice on genetically engineered foods should be placed onto a well informed consumer not held in the dark by those in power of the government and large corporations which may not have the general publicà ¢Ãƒ ¢Ã¢â‚¬Å¡Ã‚ ¬Ãƒ ¢Ã¢â‚¬Å¾Ã‚ ¢s interests as their primary goal.

Sophie’s Heart :: Essays Papers

Sophie’s Heart This novel is excellent and extremely well written. It follows the life of Sophie, a Czechoslovakian woman who immigrates to America. Sophie was a translator for the Czech Government and is fluent in German, Italian, Russian and Polish. Unfortunately, Sophie was not fluent in English. When Sophie comes to America she has huge difficulties in finding a job. After 9 months in America she meets Janet Ring at a local church. Janet and her family then slowly get to know Sophie and realize that Sophie is not happy working in a restaurant or happy living in Chicago. She realizes what a special person Sophie is, Sophie is a strong person who does not allow others to take advantage of her. Yet she has a tender heart and is able to share it with others. God then lays a solution for her brother on her heart. She approaches Alec about hiring Sophie as their housekeeper. There is reluctance on his side, yet he does not want his children burdened any more. He agrees to take Sophie on a trial perio d. Sophie wants to get out of the city and the restaurant. She loves children and jumps at the opportunity Janet offers her. When she meets the Riley family she realizes that God can use her there to help this hurting family. She has not desire to replace Vanessa Riley, but would like to help them as they adjust. Sophie moves into the apartment above the garage. She works every morning till late at night. Alec works lots and rarely gets to come home and eat with his family. The children miss their father but get used to his absence. Craig is reluctant to get even remotely close to Sophie. He is afraid that she is trying to take place of his mother. He also worried that if he gets close he will forget his mother. Tory the youngest is very attached to Sophie. She teaches Sophie the American ways. Introduces her to â€Å"The Price is Right† and other popular American TV shows. Rita, the eldest of the three is there helping Sophie with anything she needs to feel comfortable. She takes Sophie grocery shopping, as Sophie doesn’t drive. Rita also takes Sophie clothing shopping to help her with her style. Sophie does not want to be an inconvenience and is extremely polite. Sophie wakes up two hours early on Sundays to walk to church because she couldn’t dare ask the Riley family for a ride.

Alfred Edward Housman

A.E.Housman (Alfred Edward Housman) was born on March 26th 1859 in Fockbury, Worcerstershire. He was basically a classical scholar and an English origin poet. He was famous for his poem A Shropshire Lad. These short and poetic poems were written before the 19th century. The thoughful suggestion of fated youth in England, their auxilary, language and chracteristic description was appealing to the Geogian and and Edwardian composer prior and following the WW1.Housman was reckoned among the leading classic writers of his time. He had created a name for himself after printing as a private scholar and because of which he was selected as a Latin Professor at the College London University and than later at the prestigious Cambridge. His famous editions of Lucan, Juvenal and Manilius are said to be very well respected. With these settings of poetry, the generation was strongly linked and were also were much connected with the Shropshire poems as well. Alfred Edward Housman was the son of a c ountry solicitor and the eldest of his seven siblings. His sister Clemence Housman and Laurance Housman also became writers.A.E.Housman went to school at King Edward and than later to Bromsgrove school where he had a strong academic foundation and won numerous prizes for his poetry. He got a scholarship at St Johns College, Oxford in 1877 where he got education in classics.He was amazing in analyzing texts. He became so much involved into Texts that he did not retake philosophy and ancient history and even did not take a passing degree. He did not make much friends with his only friends being his roommates A.W.Pollard and Moses Jackson. Alfred Housman had a hard and usually reserved feelings for his friend Moses Jackons which were refused by Jackson as he was hetrosexual. This refusal by Moses led to Alfred unpredicted failure in his exams in 1881.Jackson got a clerk job in the Patent office in London and also got Housman a job there. They started sharing an apartmen with Adalbert w ho was the elder brother of Jackson. They stayed there till 1885 after which Housman moved into his own apartment on his own. In 1887 Moses married and moved to Karachi (Than in India) and later in 1982 Adalbert Jackson died. Alfred still continued to write classical studies on his own and also published some quality articles on numerous authors like Sophocles, Ovid, Aeschylus, Propertius, Horace and Euripides.In this period, Alfred managed to study Roman and Greek classics very throughly. He became a Latin Professor at Cambridge Trinity College in 1911 and till his death he had held the position. Alfred Housman managed to gain fame with his classic editions of the famous poets of Rome mainly Manilus, Juvenal and Lucan and also for his thorough and clever comments and his contempt for the unscholarly.Poems of Alfred Edward HousmanDuring his life Alfred Housman had managed to publish only two poetry volumes: One being published in 1896 by the name of Shropshire Lad and the other in 1 922 which was Last Poems.A Shropshire lad is a collection of his 63 poems with the majority written after his close friend Adalbert Jackons death in 1982. The main themes of the peoms were based upon unreturned love, green beauty, brief youth, sorrow, demise and the common soldiers patriotism. After his scripts were refused by many of the publishers, he decided to print them on his own expenditure which was a shock for his students and his colleagues.The Shropshire Lad was a rather slow in momentum to gain popularity, the arrival of war, at first in the Boer war and than later in WW1, gave this book a widespread popularity because of its regretfulness potrayal of the English troops. Numerous composers of music managed to make different setting of musical for the work of Housman which increased his popularity.

APU Admissions - SAT Scores, Financial Aid More

APU Admissions - SAT Scores, Financial Aid More The acceptance rate at Alaska Pacific University was 55% in 2016; admitted students tend to have high school GPAs in the A and B range. Standardized test scores are not required, so applicants need not worry if their ACT or SAT scores are not ideal. Be sure to check the universitys admissions website to learn about the specific admission requirements for different academic programs.. Admissions Data (2016): Percent of Applicants Admitted: 55 percentTest Scores 25th / 75th PercentileSAT Critical Reading: - / -SAT Math: - / -What these SAT numbers meanACT Composite: - / -ACT English: - / -ACT Math: - / -What these ACT numbers mean Alaska Pacific University Description: Alaska Pacific University is the only four-year college in Alaska with selective admissions. Students can choose from eleven undergraduate majors and five graduate programs. The college takes pride in the close relationship between students and faculty, the hands-on approach to learning, and the high levels of student engagement. Academics are supported by a healthy 8 to 1 student / faculty ratio. If youre worried about attending such a small school with only a few hundred undergraduates, realize that the University of Alaska Anchorage and its 18,000 students is next door. Student life is active with a wide range of clubs and activities, and Alaskas rich landscape provides students with unlimited outdoor opportunities. The university recently dedicated the Thomas Training Center on Eagle Glacier, a place where the Nordic Ski Team trains during summer months. Alaska Pacific University is a member of the Eco League with four other small colleges that focus on sustainability:  College of the Atlantic,  Green Mountain College,  Northland College, and  Prescott College. Students can easily take a semester or two at one of these other schools. High school students  from Anchorage should look into APUs Early Honors program which allows them to take all of their senior year classes at Alaska Pacific and graduate from high school with a years worth of transferable college credit. Enrollment (2016): Total Enrollment: 541  (298 undergraduates)Gender Breakdown: 37  percent male / 63 percent female73  percent full-time Costs (2016 - 17): Tuition and Fees: $20,310Books: $1,220 (why so much?)Room and Board: $7,260Other Expenses: $4,900Total Cost: $33,690 Alaska Pacific University Financial Aid (2015- 16): Percentage of New Students Receiving Aid: 100 percentPercentage of New Students Receiving Types of AidGrants: 97 percentLoans: 63 percentAverage Amount of AidGrants: $12,375Loans: $8,006 Academic Programs: Most Popular Majors:  Business Administration, Education, Marine Biology, Psychology Graduation and Retention Rates: First Year Student Retention (full-time students): 51 percentTransfer-out Rate: 27 percent4-Year Graduation Rate: 39 percent6-Year Graduation Rate: 48 percent DateSource: National Center for Educational Statistics If You Like Alaska Pacific University, You May Also Like These Schools: Students looking for a small (1,000 students) school on the West Coast/Pacific Northwest should also check out  Warner Pacific University, Northwest University, and  Alaska Bible College. Even without any varsity athletic programs, students at APU can get outside and enjoy hiking and skiing around the area. Other schools with great skiing clubs or teams include Colby College, Colorado College, Reed College, and Montana State University. APU and the Common Application Alaska Pacific University uses the Common Application. These articles can help guide you: Common Application essay tips and samplesShort answer tips and samplesSupplemental essay tips and samples

Successful Self-Pub Authors and Their First Books

Successful Self-Pub Authors and Their First Books 4 Successful Self-Published Authors Their Surprising Beginnings So what do a Martian, a BDSM obsessed CEO, a Harvard professor suffering from Alzheimer’s, and a subterranean city have in common?If you guessed that they’re all characters from originally self-published books, you’d be... correct.Today, these titles and characters are famous worldwide, and their authors are some of the most successful in the world. Their backstories are worth re-visiting, as these authors all come from a range of backgrounds. In fact, the only thing they share is a desire to write- and the decision to self-publish. After achieving so much success through the self-publishing model, is it any wonder that Howey is now a champion of all indie authors? "Self-publishing is the future," Howey wrote in an op-ed for Salon, "And it's great for writers.†Were any of these stories new to you? Share your favorite self-published author’s backstory in the comments below! Surprise us.

The representation of violence in Michael Haneke's Films Essay

The representation of violence in Michael Haneke's Films - Essay Example The essay will be about Michael Haneke’s Representation of Violence in his films, who is a former literary and film critic. According to Aaron (2007), in most of his life work, he undermines the development of the contemporary society. He has produced the most disturbing films, which contain much violence in the contemporary cinema, and has caused many viewers to feel sick in their stomach after watching them. The essay will be examining the stylistic and technical methods that Haneke uses that are not only his directive characteristics as an auteur, but also examine the typical difference between how he represents violence and how it has an effect on society those movies and that of conventional society. In the films Benny’s Video (Haneke, 1992), Funny Games (1997) and Cache (Haneke, 2005) there is clear evidence of how Haneke represents violence and it is not only self-reflective, but it empowers role of the viewer’s by attracting their imagination. We will also look at how Haneke criticizes the ubiquity of violent in superficial moving images. With Haneke’s production of films that address themes that are considered difficult measured by the commercial cinema standards, which include violence trauma effects, alienation, sexism and racism as made him be labeled as a modernist. In today’s films, it is almost impossible to view the whole film without witnessing violence at least as a side spectacle. The film may be either a horror movie that its focus is violence or just a comedy that needs to add some more laughs in the content; one can argue that all these films do not depict the pain and horrifying reality of violence in the real world. Apparently, the images of bombing in countries such as Libya, Southern Sudan and Iraq or a murder committed in a nearby city that one lives look to be not much of the meaning that one still want to watch a violent movie. In fact, because of the ubiquity of the images that contains violence rarely

Games Development and Architectures Essay Example | Topics and Well Written Essays - 4250 words

Games Development and Architectures - Essay Example The aesthetics of the game are based on what girls might be interested in if they were to travel to Europe: how to order food; how to use public or other transportation; how to find shelter at a hotel or motel or boarding-house or hostel; and how to have a cultural experience in the country of their particular level. The context of the game is that Lupe and Lucky are two best friends going to Europe and so that is the reason why the game is called The Adventures of Lupe Vega (Western Europe Edition Part 1). Subsequent editions could be aptly named with Part 2 dealing with other Western European nations. However, for the first edition (part 1), it was thought that in order to introduce people to the arcade game that only 6 countries would be focused upon: Spain, France, Italy, Germany, the UK, and Ireland. This would definitely appeal to the targeted audience because a lot of young women like to travel and perhaps they might need the skills to go to such countries, but just haven†™t learned much about the culture they are going to travel to, in essence. So this is a very educational game which will appeal to young women. This way, they cannot only have a formal experience which introduces them to the social elements of ordering food in a foreign country, but how to gain access to shelter, transportation, and a cultural experience while on a particular level or country they’re at.... not only have a formal experience which introduces them to the social elements of ordering food in a foreign country, but how to gain access to shelter, transportation, and a cultural experience while on a particular level or country they’re at. 2) Structure of the game system, including a description of all the game components, their interactions, and game mechanics. [1 page] ? The game components include the background setting for 24 different scenes. It also includes menus for each of the six countries’ food tasks, transportation information for six different transportation tasks, six shelter options for the different countries’ shelter tasks, and six different options for each of the countries’ cultural tasks. There may be multiple choices for each of the four tasks in each of the six countries—therefore, people may have choices as to what they would like to complete during their time playing the arcade game. This is a game at a much less speedy pace so people playing the game can take their time on a scene. It’s more of an educational game as well, so there is no time limit a person can spend on one scene. The interactions are usually between two people at a time—the person who the character is approaching and the character herself. Game mechanics are a little bit more complicated, but basically this can all be written in C# code if necessary on the technical end of things. In order to complete successful coding of the game, it is imperative that the coder know the intricacies of the game and what each interaction may consist of, in general. Thus, the coder and the person who developed the game would have to work together on the final coded prototype. This prototype presented here does not include code, rather it provides an overall scope for game