Question 2: The safety of genetically modified foods Due to the imbalance between science and technology and social development, the connotation and emphasis of food safety issues are not exactly the same in different countries and regions, and people's understanding of food safety is also different to varying degrees. In 1996, the World Health Organization defines food safety as "ensuring that food will not harm consumers when it is prepared and eaten according to its original purpose". In China, the safety of food is usually interpreted as "the actual guarantee that long-term consumption will not cause adverse reactions to consumers under the prescribed usage methods and dosage conditions". The so-called adverse reactions include acute toxicity caused by accidental intake of a certain food or chronic toxicity caused by long-term small intake, such as carcinogenesis and teratogenesis. With the progress of science and technology and the improvement of analytical technology, some foods that were once considered absolutely safe and pollution-free were later found to contain some toxic and harmful substances, which could lead to chronic poisoning of consumers or endanger the health of future generations after long-term consumption; However, many chemicals declared toxic actually exist widely in many foods, especially natural foods, and are beneficial to human health within a certain content range. Therefore, whether a food is safe is not based on its inherent toxicity, but on whether it causes actual harm.
Question 3: How to treat the safety of genetically modified food? Consider writing a long paper on food safety yourself.
People have been arguing about the safety of genetically modified foods. From the perspective of philosophy of science and technology, we can neither exaggerate the risks of genetically modified technology and genetically modified food and ignore their potential benefits, nor advocate their benefits and ignore the risks. The present and future of transgenic technology and genetically modified food need rational reflection and prudent decision-making by human beings.
Question 4: Advantages and disadvantages of genetically modified foods Faced with more and more genetically modified foods, people's understanding is not consistent. The main eating faction led by the United States and the opposition led by Europe have formed two camps on a global scale. According to a recent survey, most consumers in the United States and Canada have accepted genetically modified foods, and only 27% of consumers think that eating genetically modified foods may cause health hazards. In Europe, most people are against genetically modified foods, especially in Britain. The reason is that a British professor's research in 1998 showed that the internal organs and immune system of young rats would be damaged after eating genetically modified potatoes, which was the earliest question about genetically modified food and triggered a big discussion about the safety of genetically modified food in Britain and even the world. Although the Royal Society issued a statement in May, 1999: This study is "full of loopholes", the conclusion that genetically modified potatoes are harmful to biological health is totally unfounded. However, the safety of genetically modified foods has aroused consumers' doubts. 79% of the British people are opposed to the trial planting of genetically modified crops, and genetically modified foods have entered the market. So, what is the safety of genetically modified food? Can I eat? Professor Luo Yunbo believes that, in essence, genetically modified organisms and conventional breeding varieties are the same, which modify some traits, or add new traits, or eliminate the original unfavorable traits. Conventional cultivated varieties are limited to intraspecific or related species, while exogenous genes in transgenic plants can come from plants, animals and microorganisms. Although the current scientific level cannot accurately predict what kind of interaction an exogenous gene will have under the new genetic background, genetically modified food is safe in theory. Professor Luo Yunbo said that he himself eats genetically modified food, and there are people among his colleagues who do research and promotion in this field. He does not reject genetically modified food. When asked whether long-term consumption of genetically modified foods will have chronic side effects on human body, Professor Luo thinks that there will be no side effects. First, genetically modified foods have undergone a lot of experiments and strict inspections by many departments before they are put on the market; Second, genetically modified foods will not accumulate in the body. As for people's suspicion that genetically modified foods may be harmful to the human body, it is mainly because they don't understand genetic engineering, and these "harms" have no scientific basis. Professor Luo Yunbo believes that it is far from enough to have "Implementation Measures for Safety Management of Crop Genetic Engineering" before genetically modified foods enter our lives on a large scale. Because this method does not involve imported agricultural products, there are no strict restrictions on the entry of foreign genetically modified foods into China, so legislation should be made as soon as possible to conduct strict safety testing on imported genetically modified foods, so as to truly guarantee the interests of consumers. If genetic engineering can develop in an orderly and healthy way in favor of human needs under the strict control of corresponding laws and regulations, it will bring immeasurable contributions to mankind. Edit paragraph 2. The prospect of genetically modified food is optimistic. Although there is still some debate about genetically modified food, its advantages are becoming more and more obvious. The content of tryptophan in genetically modified corn widely planted in the United States has increased by 20%. Tryptophan is an essential amino acid for human body, which cannot be synthesized by itself and can only be ingested from the outside. Generally, the content of tryptophan in plant foods is very low or even absent, and it can only be obtained from animal foods. The emergence of genetically modified corn is undoubtedly good news for vegetarians. The content of unsaturated fatty acids in transgenic rapeseed is greatly increased, which is beneficial to cardiovascular system. Genetically modified engineered milk increases the content of lactoferrin and disease-resistant factors, and reduces the fat content ... Western developed countries have fully realized the development prospects of genetically modified foods and injected a lot of funds. Although most British people are opposed to genetically modified food, more than 7,000 kinds of baby food, chocolate, bread, sausages and other daily necessities in this country may contain genetically modified soybean by-products. Britain is very supportive of the research on genetically modified food, and Prime Minister Blair is an advocate of genetically modified food. China has a large population and a small land, and genetic engineering is an important way to solve the problem of grain yield and improve grain quality. In recent years, great progress has been made in the research of genetically modified food in China, and the current research and development is at the middle level in the world, second only to the United States and Canada. Professor Luo believes that with the acceleration of commercialization of genetically modified food, genetically modified food will surely become a delicious food on people's table. Edit paragraph 3. Potential ecological risks of genetically modified crops. 1992 has clearly stated the potential ecological risks of genetically modified crops in the provisions of the Convention on Biological Diversity, requiring that measures be formulated or taken to regulate, manage or control living organisms transformed by biotechnology as appropriate; & gt
Question 5: How about a paper on the safety of genetically modified organisms and genetically modified foods 1000 words? I can write this according to the teacher's request, write a package and modify it through the package.
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