Vol 2 Chapter 1299: The pros and cons of genetically modified technology

　　The controversy and disagreement about genetically modified technology have never stopped since the advent of this technology. It can be said that the debate on this technology is already an issue that academia, society, and the public are arguing. It has long ceased to be an issue in academic circles, but has become an issue that all mankind is paying attention to. .

　　 Transgenic technology refers to the use of modern biotechnology to artificially isolate and recombine the desired target gene, and then introduce and integrate it into the genome of the organism, thereby improving the original traits of the organism or giving it new excellent traits.

　　 In addition to the transfer of new foreign genes, the genetic characteristics of organisms can also be changed by processing, knocking out, and shielding genes of organisms through transgenic technology to obtain traits that people hope to obtain.

　　 The main process of this technology includes a series of genetic engineering technologies such as the cloning of foreign genes, the construction of expression vectors, the establishment of genetic transformation systems, the screening of genetic transformants, genetic stability analysis and backcross breeding.

　　 Scientists and researchers can use genetic modification technology to artificially cultivate some excellent new plant varieties.

　　 These brand-new plant varieties have many obvious advantages over traditional plant varieties.

"For example, genetically modified biotechnology can speed up the growth of crops, enhance disease resistance, increase yield, enhance the ability to adapt to the environment, and enhance the ability to resist herbicides and pesticides.

　　Plants are very susceptible to other weeds, diseases and insect pests, and genetically modified technology, some genes resistant to diseases and insect pests are implanted into the plant body, so that it can resist and immune the invasion of related diseases and insect pests.

　　 In addition, weeds and insects in farmland have a greater impact on crops. Generally, a large amount of herbicides and insecticides need to be sprayed when clearing a large area.

　　 When these herbicides and insecticides kill these weeds and insects, they can also affect or even damage crops or specific plants.

In this way, when weeds and large areas of insect damage, such as locusts, seed flies, greasy worms, etc., can be safely sprayed with herbicides and insecticides, there is no need to worry about crops and specific insects. Plants cause harm.

　　 Anyway, it is also the genetic modification or gene editing technology Wu Hao and the others are studying.

　　 That is, cloning some stress resistance genes and transferring them into plants can improve the plant's resistance to drought, low temperature, saline-alkali and other adversities.

　　 For example, they are cultivating a new type of genetically modified Haloxylon tree, in which some of the genes of moso bamboo have been transferred. Not only did it increase the plant height of the Haloxylon tree several times, but it also has the rapid growth ability of moso bamboo, which can rise to several meters in a short period of time, which is difficult for plants in desert and arid regions to achieve.

　　 In addition to large-scale applications in agricultural plants, transgenic technology is also used in industry, medicine, fishery, animal husbandry, and even environmental protection.

　　As in industry, it can be applied to industrial fermented food bacteria, such as the improvement of yeast and lactic acid bacteria. In addition, genetic modification technology can also be used to produce food additives and processing aids.

　　 In medicine, genetically modified technology is also widely used. Transgenic technology can be applied to the production of protein and peptide drugs, such as the production of rare drugs such as insulin, interferon, immunoglobulin, human hemoglobin, and granulocytes. Animals and plants can also be used to produce vaccines, such as hepatitis B surface antigen genes, foot-and-mouth disease virus protein genes, rabies virus G protein genes, and so on.

　　 In fisheries, genetically modified technology can also be used to improve fish breeding performance and enhance its resistance to cold and disease. According to related reports and published papers, a variety of mammalian and poultry-related genes have been successfully transferred into the fish genome, which significantly increases the muscle protein content and feed conversion rate of the genetically modified fish, and accelerates the growth rate. .

　　 In addition, technicians also use genetically modified technology to cultivate ornamental fish, such as the kind of small tropical ornamental fish that has become popular or even flooded in recent years. The red, green, and blue colors are very rich, and some can even fluoresce at night. These fish do not exist naturally, but are brand-new species created by technicians who transferred genes from some luminous jellyfish and deep-sea fish to these fish.

　　In the animal husbandry industry, the same genetic modification technology is also showing its talents.

　　 It can improve the production traits of livestock and poultry. Through genetic modification technology, it can promote the growth rate of animals, increase the efficiency of feed utilization and shorten the growth cycle. Secondly, the application of transgenic technology can improve the disease resistance of livestock and poultry. Anti-genes of pathogenic genes can be introduced into livestock and poultry, thereby playing a role in disease resistance.

Finally, it is environmental protection. One is what Wu Hao and the others are doing. They have cultivated some better drought-tolerant, wind-sand-resistant, salt-alkali-resistant, and barren-tolerant plants. They are planting trees in arid desert areas to prevent wind and sand. Improve the environment.

In addition, some plants, bacteria, microorganisms, and the characteristics of absorbing heavy metals and other toxic elements can be extracted, and the relevant genes of these plants, bacteria, and microorganisms can be extracted, and then super plants that can absorb heavy metals and toxic elements can be cultivated. So as to treat these polluted areas, play a role in purifying the environment.

　　 Having said so much, it seems that genetically modified technology is perfect and can help us humans solve various problems. It can be said to be a great biotechnology that can change the human world and even human civilization. U U Reading www.uukanshu.com

　　 However, the risks it brings have also become a common concern among academics, society and the public.

　　 Even some countries and regions have imposed bans to strictly enforce the cultivation and production of such genetically modified plants and genetically modified technologies.

　　 For example, the European Union has implemented a mandatory labeling system for genetically modified products, and the lower house of the country passed the case of banning genetically modified corn. Some countries directly prohibit the cultivation of genetically modified crops, and strictly restrict the circulation of related genetically modified crops.

　　The reason why people are so worried about genetically modified technology is mainly because they are afraid of the serious ecological disasters and dangers caused by the abuse of genetically modified technology.

　　 For example, many people believe that genetically modified technology itself still has some hidden dangers that cannot be confirmed but are harmful, including threats to the earth's ecological environment and human health.

In addition, in terms of ecology, if the relevant genes of genetically modified crops are transferred to wild relatives, it will contaminate the entire seed resource gene bank, thereby changing regional plant genes, and even global plant genes, which will cause great harm to the ecological environment. .

　　Moreover, human beings are also part of the natural ecosystem. People are worried that these genetically modified plants may endanger some of the animal genes that have been fed by plants, and ultimately affect human genes.

　　

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