genetically modified food is a product created by new technology, and it is also a new thing. People naturally have doubts about the safety of eating genetically modified food. Genetically modified food

In fact, the first person who raised this question was Professor Pupitai of Aberdeen Rotter Institute in Britain. In 1998, he found in his research that the internal organs and immune system of young rats would be damaged after eating genetically modified potatoes. This has aroused great concern in the scientific community. Then, the Royal Society reviewed the report and announced in May 1999 that the study was "full of loopholes". In 1999, Nature, an authoritative scientific magazine in Britain, published a paper by john rossi, a professor at Cornell University in the United States, pointing out that beneficial insects in the field, such as butterfly larvae, will develop stunted after eating leaves sprinkled with some genetically modified corn pollen, and the mortality rate is particularly high. At present, there is still some evidence to point out the potential dangers of genetically modified foods. But more scientists' experiments show that genetically modified food is safe. Scientists who agree with this view mainly have the following reasons. First of all, a large number of scientific experiments have been carried out before any kind of genetically modified food goes on the market. The state and the government have relevant laws and regulations to restrict it, and scientists also have a very strict academic attitude. In addition, farmers will use pesticides to ensure the quality of traditional crops when they are planted, while some insect-resistant genetically modified foods do not need to be sprayed with pesticides. Also, whether a food will cause poisoning mainly depends on whether it has receptors in the human body and whether it can be metabolized. The transformed genes are screened and have clear functions, so the genetically modified ingredients will not accumulate in the human body, so it will not be harmful. For example, a kind of insect-resistant corn that we cultivated is transformed into corn with a gene from Bacillus thuringiensis, which can only lead to the death of Lepidoptera insects, because only Lepidoptera insects have the specific receptor of protein encoded by this gene, while humans and other animals and insects have no such receptor, so it has no toxic effect. In 1993, the OECD put forward the evaluation principle of genetically modified food for the first time-the principle of "the genetically modified edible oil that substantially occupies the China market is

equivalent", that is, if the types and contents of various main nutritional components, main anti-nutritional substances, toxic substances and allergic components of genetically modified food are analyzed and determined, it is considered that they are substantially equivalent and there is no safety problem; If there is no substantial equivalence, it is necessary to evaluate the safety one by one. In China, the State Science and Technology Commission promulgated the "Safety Management Measures of Genetic Engineering" in 1993 to guide the research and development of genetic engineering throughout the country. In 2, led by the State Environmental Protection Administration, with the participation of eight relevant departments, the National Biosafety Framework of China was formulated. Let's take a concrete look at Zhi Gong Dang's view: The Central Committee of Zhi Gong Dang submitted a proposal on further strengthening the safety awareness of genetically modified foods to the Third Session of the 11th Chinese People's Political Consultative Conference. According to the Zhi Gong Dang Central Committee, genetically modified foods have only appeared for more than 1 years since 1993, and have not undergone long-term safety tests. There are still many uncertain factors: 1. Gene technology uses antibiotic-resistant genes to identify genetically modified crops, which may affect the efficacy of antibiotics on human body after genetically modified foods enter human body, and mutant genes in crops may lead to new diseases; 2. protein transfer in transgenic technology may cause people to be allergic to foods that were not allergic, and it remains to be verified whether the new protein [1] properties after segmentation and recombination fully meet our envisaged needs; 3. Artificial extraction and addition of genes may increase and accumulate trace toxins in food, unpredictable biological mutations, and even raise the original toxin level or produce new toxins; 4. As far as the ecosystem is concerned, genetically modified food interferes with specific species and artificially gives them a competitive advantage in the living environment, which will inevitably destroy the timeliness of natural survival laws and cause changes in ecological balance. Moreover, it is impossible for genetically modified organisms, bacteria and viruses to enter the environment, and it is more serious than chemical or nuclear pollution, and the harm is even more irreversible. Therefore, the Zhi Gong Dang Central Committee suggested: 1. Improve the policies and regulations on the safety of genetically modified foods; 2. Control or restrict the planting areas of genetically modified animals or plants; 3. Ensure the food safety of consumers and improve their right to know and choose

Edit the development status of genetically modified foods in this paragraph

In recent ten years, the development of modern biotechnology has shown great potential in agriculture and gradually developed into an industry that can generate huge social and economic benefits. In 1999, transgenic plants were planted in 12 countries around the world, covering an area of 39.9 million hectares. Among them, the United States is a big grower, accounting for 72% of the global planting area. Many countries in the world have listed modern biotechnology as the key areas of national priority development, and invested a lot of manpower, material resources and financial resources to support the development of biotechnology. However, the development of genetically modified food is uneven among countries and regions in the world. China has a population of 1.3 billion, accounting for 22% of the world's total population, which means that China will feed 22% of the world's population with 7% of the world's arable land. With the development of urbanization, agricultural arable land is decreasing, while the population is increasing, so there is a higher demand for industrial and agricultural production and greater pressure on the environment. Therefore, since the early 198s, China has incorporated modern biotechnology into its scientific and technological development plan, and the research in the past 2 years has yielded fruitful results. At present, five transgenic crops, such as insect-resistant cotton, have been approved for commercial production. In 1998, the planting area of insect-resistant cotton with Bt insecticidal protein gene was 12, hectares. According to the data, by the first half of 2, 48 transgenic crops and 49 transgenic crops had entered the pilot test and environmental release test respectively. In recent years, many achievements have been made in the research and development of modern biotechnology in China. China's genetically modified food technology is second only to the United States and Canada. The technology of genetically modified food in European countries is not very developed. This is because they understand that genetically modified food is very harmful, and they have adopted legislation to prevent the excessive sowing of genetically modified food. Even some countries have completely banned the sowing and production of genetically modified food, and people in European countries have boycotted it. There have been many incidents in which people have destroyed genetically modified experimental fields. Therefore, we should also recognize the potential harm of genetically modified food and not put the interests before people's health. Genetically modified food is a new product of science and technology, and there are still some problems, but with the development of science and technology, all its advantages and disadvantages will be completely displayed to the world. Only in accordance with the strict legislative provisions that are not harmful to people and the environment, the development of biotechnology in China will be healthy and orderly, and our life will become more colorful because of genetically modified food brought by biotechnology. Predicting the future with good wishes, we will never worry about the harm of pesticides again. All the foods we eat are fresh, and our food will not be in short supply ... Maybe diabetics can supplement insulin by drinking a special glass of milk every day. Maybe we will see a variety of fruits sold in pharmacies, which are calcium-supplemented, iron-supplemented, cold-treated and antiviral ... It is very likely that genetically modified foods will make our tomorrow brilliant. But before we know about genetically modified foods, we should not be overly optimistic, because genetically modified foods are not natural plants after all, and some genetically modified plants have interrupted the chaotic biological chain.