Agricultural transgenic technology

Question 1: What is the significance of transgenic technology to agriculture in China? Transgenic technology and its significance to agricultural development in China.

Transgenic technology refers to introducing beneficial genes from different organisms (or the same organism) into the target organism by using molecular biology methods, so that the target organism can add new functional characteristics on the basis of the original genetic characteristics, obtain new varieties and produce new products. As the extension and development of traditional hybrid breeding technology, agricultural transgenic technology breaks the boundaries between species and realizes the exchange and transfer of beneficial functional genes between different species, thus greatly improving the efficiency of crop breeding and accelerating the cultivation and upgrading of new crop varieties. Since the first appearance of transgenic technology in 1970s, transgenic technology has shown great development potential in crop variety improvement. By the end of 20 10, the cumulative planting area of genetically modified crops in the world has reached 10 billion hectares, which is equivalent to 8 times the cultivated land area in China. In 20 10, the planting area of transgenic crops reached1480,000 hectares, accounting for about 10% of the global crop planting area.

Transgenic technology has become one of the most rapidly applied major technologies in human history.

First, the application status and trend of transgenic technology

Since the first industrial application of transgenic crops in 1996, the global research and industrial application of transgenic technology has entered a stage of rapid development. The research and development of new varieties of genetically modified crops has shifted from the first generation products such as insect resistance and herbicide resistance to the second generation products that improve nutritional quality and increase yield. A large number of new varieties of high-quality and high-yield transgenic crops rich in vitamins, unsaturated fatty acids, amino acids and other nutrients have been successfully developed one after another, and show good market development prospects. In addition, the application of transgenic technology has further penetrated and developed in the fields of medicine, processing, energy and environmental protection. Using plants as bioreactors to produce functional proteins, including medicinal proteins, feed enzyme preparations, biomaterials and industrial raw materials, has also become an important field of transgenic research and development. With the gradual acceleration of research and development of genetically modified crops, the scale of industrial application of genetically modified crops is also further expanded. According to the statistical data released by the International Agricultural Biotechnology Application Service Organization (ISAAA), in 20 10, the global planting area ratio of genetically modified crops increased by 87 times 1996, with 29 countries planting genetically modified crops, and the global market value of genetically modified crops reached10.5 billion US dollars. In 20 10, the global planting area of transgenic soybeans accounted for more than 3/4 of the total soybean planting area, transgenic cotton accounted for about 1/2, transgenic corn accounted for more than 1/4, and transgenic rape accounted for more than 1/5. As the country with the largest planting area of genetically modified crops, the United States planted an area of 6.5 million in 2009.

4 million hectares, followed by Brazil, the planting area is 210.4 million hectares, and Argentina is 2.

654.38+0.3 million hectares, 8.4 million hectares in India, 8.2 million hectares in Canada, 3.7 million hectares in China, 2.2 million hectares in Paraguay and 26.543 million hectares in South Africa. It is estimated that by 2025, the planting area of transgenic plants will reach 200 million hectares. The popularization and application of genetically modified crops has grown at an unprecedented speed, creating a miracle of the development of modern agricultural science and technology.

Second, the significance of transgenic technology to agricultural development in China.

As a large agricultural country with a population of1300 million, how to ensure national food security and long-term effective supply of agricultural products has always been the top priority of China. In recent 10 years, due to the influence of climate change, water shortage in some areas and shrinking cultivated land area year by year, the yield of main crops in China has been stagnant, and the yield potential of newly bred varieties has not been greatly broken. More importantly, due to the lack of good resistance or high-quality resources, the improvement effects of some crops in disease resistance, insect resistance, herbicide resistance, salt tolerance, drought tolerance and quality improvement have not been obvious.

Generally speaking, the main problems existing in agricultural production in China at present include: ① The main crop diseases and insect pests are getting worse year by year, which affects the improvement of crop yield and quality. At the same time, the use of a large number of pesticides not only increased the cost of agricultural production, but also seriously damaged the ecological environment and endangered human health. (2) The shortage of water resources in some areas has intensified, and the area and frequency of drought have gradually expanded, which has reduced crop production. (3) The harsh environment, such as saline-alkali soil and acid soil, limits the planting of crops and the exertion of yield potential. (4) The extensive application of chemical fertilizers has increased the cost of agricultural production, caused soil degradation and eutrophication of rivers, lakes and seas, and hindered the sustainable development of agriculture and environment. ⑤ Main ... >>

Question 2: How to treat the application of transgenic technology in agriculture? In the agricultural field, transgenic technology is mainly used to cultivate agricultural transgenic animals, plants and microorganisms, especially transgenic crops, which have developed fastest and cultivated a number of insect-resistant, disease-resistant and herbicide-resistant transgenic crops. At present, transgenic technology is developing in the direction of improving photosynthetic efficiency, fertilizer utilization efficiency, drought resistance and salt tolerance and improving quality.

Question 3: However, transgenic technology has great potential in agricultural production. What role does this sentence play in the selected text, and what role does it play in the text? In fact, transgenic technology is widely used in medicine, industry, agriculture, environmental protection, energy and new materials. In the field of modern medicine, transgenic technology has been applied to recombination vaccines, auxin, insulin (which is well known) and interferon.

Question 4: Transgenic technology is of great use in agricultural production and medicine. Is the right or wrong answer correct? Biotechnology is mainly used in three aspects:

Basic biological research of organism itself

Study on the Application of Green Camps in Agriculture

Research on the Application of Red Camp Medicine

The application of transgenic technology in agriculture, such as transgenic tomatoes, cotton and soybeans, and in medicine, such as the production of antibody vaccines and antibiotics.

Not rigorous enough, please correct me if there are any mistakes.

Question 5: What are the applications of transgenic technology in agriculture? The application of transgenic technology in agricultural insect-resistant varieties, such as transgenic insect-resistant cotton, agricultural scientific research, such as transgenic technology research and control of plant pathogenic fungi, etc.

Question 6: How to use transgenic technology to improve agricultural transgenic technology refers to introducing beneficial genes from different organisms (or the same organism) into the target organism by using molecular biology methods, so that the target organism can add new functional characteristics on the basis of the original genetic characteristics, obtain new varieties and produce new products. As the extension and development of traditional hybrid breeding technology, agricultural transgenic technology breaks the boundaries between species and realizes the exchange and transfer of beneficial functional genes between different species, thus greatly improving the efficiency of crop breeding and accelerating the cultivation and upgrading of new crop varieties. Since the first appearance of transgenic technology in 1970s, transgenic technology has shown great development potential in crop variety improvement. By the end of 20 10, the cumulative planting area of genetically modified crops in the world has reached 10 billion hectares, which is equivalent to 8 times the cultivated land area in China. In 20 10, the planting area of transgenic crops reached1480,000 hectares, accounting for about 10% of the global crop planting area.

Question 7: How to use transgenic technology to improve agricultural transgenic technology widely used in all fields of our daily life.

Question 8: Why did the Ministry of Agriculture of China introduce genetically modified agricultural products into the earliest genetically modified tobacco in China, and the earliest genetically modified rice (No.3 and No.5 genetically modified rice born in 1992) were all produced in China? At that time, China was leading the world in many aspects in the field of genetic modification, while Monsanto and Syngenta were still * * * 1992 in the field of genetic modification. Therefore, it is wrong to introduce genetically modified agricultural products into China.

Monsanto and other foreign companies tried to monopolize the seed industry in China, and failed completely in the field of genetically modified cotton. So they used a lot of money to buy off some celebrities or institutions in China, desperately trying to reverse the development of genetically modified technology in China, so as to hold the throat of China's economic development. At present, they have achieved their goal initially, which has caused China to lag behind the United States and other developed countries in the field of genetically modified cotton.

On the one hand, the United States bribed some people to spread rumors of genetically modified cancer-causing sterilization in China, on the other hand, it desperately researched and promoted genetically modified technology in its own country. Thousands of genetically modified food crops were approved for planting, and the commercial planting of genetically modified salmon was also approved at the end of 20 15, and it was clearly approved that genetically modified salmon could be used as American food. This article explicitly allows genetically modified salmon to be used as food in hospitals, schools and kindergartens in the United States.

65,438+000% of sugar beets grown in the United States are genetically modified, and most of them are eaten as food by Americans themselves in the form of syrup. China imports genetically modified soybeans from the United States, but almost no beets from the United States. Don't talk nonsense. All genetically modified foods grown in the United States are sold to China. Almost all beer in the United States is genetically modified beer, because the yeast that produces beer has undergone complex genetic modification. Some upside-down people in China drink genetically modified beer imported from the United States and raise their glasses to talk about infertility caused by genetic modification. What a joke! Genetically modified foods in the United States don't need to be labeled, and they can't be labeled at all, because their food raw materials don't need to be labeled genetically modified, and food processors themselves don't know if their raw materials are genetically modified. How to label them?

Cui Yongyuan criticized genetically modified food when he knew it was safe. As a patient with depression (a kind of obsessive-compulsive disorder), we can understand that mental illness is like this. Evidence: Cui Yongyuan used a lot of genetically modified soybean oil in his charity activity "Adding vegetables for mountain children", which can only be understood as his belief in the safety of genetically modified soybean oil. If he thinks genetically modified food is unsafe, then his charity activities are harming people! Relevant evidence, check it online yourself!