Animal transgenic technology

I. Definition of Transgenic Technology The artificially isolated and modified gene is introduced into the genome of an organism. Due to the expression of the introduced gene, the inheritable modification of the trait of the organism is caused. This technique is called a transgene technique. Popular speaking: Transgenic technology refers to the use of molecular biology techniques to transfer genes of certain organisms to other species, transform the genetic material of organisms, and transform organisms that have been genetically modified to humans in terms of traits, nutrition, and consumer quality. Needed goals change. It is often said that genetic engineering, genetic engineering, and genetic transformation are synonymous with genetically modified genes. Second, the commonly used animal transgenic technology 1, microinjection method: the DNA is injected into the embryonic nucleus, and then injected DNA embryos into the animal body, so that it develops into normal pups. 2, somatic cell nuclear transfer method: first in vitro somatic cells in the gene introduction and screening. The transgenic somatic cells are then transplanted into egg cells that have been removed from the nucleus to produce a reconstructed embryo. Third, the application prospects of transgenic animals 1, transgenic animals is a tool for understanding the nature of a variety of life phenomena, such as the relationship between the structure and function of genetic research. 2. It can be used to establish animal models of various diseases, and then to study the pathogenesis and treatment of these diseases. 3, can improve animal breeding efficiency. The technology of transgenic animals has made it possible to improve the economic traits of livestock and poultry, such as increasing the growth rate, increasing the lean meat percentage, improving the quality of meat, improving the utilization rate of feed, and enhancing the resistance to disease. 4. Transgenic animals can be used as bioreactors for medical or edible proteins. A large number of safe, efficient and inexpensive human pharmaceutical proteins can be secreted through the mammary glands of livestock. IV. Problems in Animal Transgenic Technology Research on transgenic animals has developed rapidly. However, many problems still remain to be resolved. Apart from technical issues, it also involves ethics, laws, safety, and how products are accepted by consumers. It can be predicted that the above problems will be solved, and research and development in this field will become a hot spot in the direction of practical application in the field of international bio-engineering. V. China's Management of the Safety of Agricultural Genetically Modified Organisms In China, laws and regulations such as the "Regulations on the Safety Management of Agricultural Genetically Modified Organisms" and the "Administrative Measures on the Safety Evaluation of Agricultural Genetically Modified Organisms" have been promulgated. A series of regulations have been made in terms of management scope, safety evaluation, and management measures to ensure safety in use. GM technology is leading a new revolution in agricultural science and technology. At present, the public in China still has some doubts about genetically modified technology and genetically modified foods. We should adopt various forms of education to popularize life science knowledge so that the public has a more scientific understanding of genetically modified technology and actively accept genetically modified foods. Bring GM technology closer to the people for the benefit of humanity.

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