Презентация на тему: Генетически модифицированные продукты

Genetically modified foods - for and against Presentation on the topic of: The reason for the creation of genetically modified foods Now the world has a population of approximately 7 billion people. One of the main problems facing humanity is a lack of food. Even now, with 7 billion population, the inhabitants of some regions are starving. In connection with this, in agriculture implemented the most productive biotechnology. One of such technologies is genetic engineering, with the help of which are created genetically modified foods. Genetic engineering gives an opportunity to overcome interspecific barrier and transfer signs of some organismsothers, carrying out such changes in the genome that are unlikely to could arise in a natural way. Roughly speaking, gene engineers do something that is always prohibited nature.Take, for example, a gene from a fish and put it in a tomato. But not in order to tomato sailed, and that it can bestored at low temperature. Transfer of genes between speciesdifferent species called horizontal (lateral). Recombinant DNA technology A DNA molecule, assembled from pieces of DNA of various organisms, is called recombinant. Obtaining of recombinant DNA in the quantity necessary for conducting genetic modification, allows you to move to the transformation of the plant cells. Due to the fact that many of the cells of plants totipotentnosty (totipotentnosty the ability of the cells by dividing give the beginning of any cell type of the body.) that is, of anyplant cells can grow whole fruit-bearingthe plant, obtaining of transgenic plants of the transformedcells presents no difficulties. Genetically modified foods: for and against For: Genetically modified foods are more resistant to all kinds of viruses and bacteria. They have longer shelf. Previously, farmers have used tons of chemicals, to save harvest, now they can save money. In addition, the data products can be sustainable and to cold, and the heat, and salted soil them uneasy. The purpose of the genetic technology applied to the animals, " this usually the acceleration and the increase in their growth ". If genetic manipulation is being carried out under the control of official bodies, such products can be considered completely safe. Against: If you put aside the ethical issues in the production of these products, which some see as unnatural intervention in nature created by God, the rivals have modified foods remains plenty of arguments. They say that now, genetic engineering is not perfect. She was not able to manage the process of embedding the new gene. Therefore it is impossible to foresee place embedding and effects added gene. Has not been proved yet, as modified by genetic engineered organisms will not have a harmful effect on the environment. Ecologists of the assumption of the a variety of potential environmental complications. And no serious results in the fight against hunger in developing countries with the help of modified products has not been achieved. Public opinion is configured as a whole against the modifiedproducts. Under the pressure of public organizations of some States have adopted laws on the cessation of research in this region. The prevalence of the production of GMO food The United States never had restrictions, modified products sold there along with the ordinary. Now the same occurs in New Zealand, and Australia. In Europe seriously think about cancellation of mandatory labeling. Since 1996, in Russia there is a law that regulates theactivities in the field of genetic engineering. According to thisthe document, the import of products containing geneticallymodified components, should be certified and tests on the security of the Russian scientific institutes. After this they can be introduced in a wide consumption. According to the law, in the summer of 1999 the Ministry of health of the Russian Federation issued the first license toimport of genetically modified products. Harmful if health genetically modified foods? A clear answer to this question cannot be. While the consequences of the consumption of food products with genetically modified products are not known. According to leading experts, if a man eat of the sausage with transgenes one time, nothing could happen to him. However, we eat every day. Experts believe that after many years of genetically modified protein reaches in the body of dangerous concentrations. The main source of danger is the imperfection of the technology of obtaining of transgenic organisms. In spite of the fact that genetic engineering is a high modern and rather well-developed science, with the creation of GMO scientists still are blind. Inserting a gene fragment, they don't exactly know in what portion of the genome he gets, and how it will affect his work. The transformed cell acquires an absolutely new, non-relevant properties. According to doctors, in recent time the number of applicants with allergies reaches 20-30 per cent, while another five years ago - there were four to five times less. The reason is the increased consumption of various food additives, which often contains amino acids, produced by genetically-modified bacteria It is obvious, that to genetically modified products should not be taken lightly. At least, we, as consumers, need to be informed about what we eat. We should be able to select. And, most importantly, we must understand not only what we eat ourselves, but that we give our children, for that genetically modified products are included in the structure of baby food too Genetically modified foods can be the cause of Allergy Not worth it to bring the situation to an absurdity and sign themselves andchildren to starve to death. Take a look truth in the eyes – absolutelyecologically clean products is left, that is the price for progress.Therefore, we, as people with common sense and caring parents, mustadhere to the Golden mean.Suppose you learned that a product is genetically modified. Ask yourselfthe question, as if he had no equivalent of the same quality and price, butwithout any of transgenes? If there is, then, of course, use analog.If there are no analogs, then ask the second question: and whether thisproduct is required of you and your child?Of course, a good idea to treat the child chocolate bars or soda, but whetherto do it all the time? Eat more natural foods, and all will be well. Conclusion