How to rationally use genetic engineering technology for the benefit of mankind

Genetic engineering is also known as gene splicing technology and DNA recombination technology.

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1. The use of genetic engineering technology in agriculture, animal husbandry and food industry can not only cultivate high-quality, high-yield, and well-resistant crops, livestock and poultry new varieties, but also cultivate animals and plants with special purposes.

2. As a genetic unit in the body, genes can not only determine our appearance, height and height, but also its abnormality will inevitably lead to the emergence of various diseases. Some defective genes may be passed on to offspring, while others may not. The idea of gene ** was originally aimed at the genetic disease of single gene defect, with the purpose of having a normal gene to replace the defective gene or to remedy the defective gene of the gene **.

Treating diseases with genes is to introduce functional genes into the patient's body to express them, and because the expression product - protein plays a function to make the disease possible**. The result of gene ** is like an operation on the gene, which treats the root cause of the disease, so some people describe it as "molecular surgery".

Microorganisms grow quickly, are easy to control, and are suitable for large-scale industrial production. If the genes that biosynthesize the corresponding drug components are introduced into the cells of microorganisms, so that they can produce the corresponding drugs, it can not only solve the yield problem, but also greatly reduce the production cost.

Genetic engineering breaks down the boundaries between species that are difficult to cross, and can reshuffle and recombine genes from different types of organisms such as animals, plants, and microorganisms. In the 70s of the 20th century, scientists put the synthesized insulin gene on the plasmid, and then transported the modified plasmid into E. coli to obtain E. coli that can produce human insulin. In 1981, this human insulin, produced by E. coli, was officially approved in the United States for production.

The benefits of microorganisms created by "genetic engineering" have led many biologists working on plant disease resistance to create disease-resistant plants. Tobacco mosaic virus is a common plant virus that causes tobacco plants infected with the virus to become languishing, stunted, and have mottled lines on their leaves. American scientist Pitch had a whim:

If the protein gene of tobacco mosaic virus is put into tobacco, can antiviral tobacco be produced?

Therefore, he reassembled the coat protein gene of tobacco mosaic virus with a modified Ti plasmid that does not cause tumors in plants in vitro to obtain a recombinant Ti plasmid, and sent the Ti plasmid into tobacco cells. Tobacco cells with the coat protein gene of tobacco mosaic virus were obtained and developed into tobacco plants under artificial careful culture, and this genetically engineered tobacco is really no longer afraid of the harm of tobacco mosaic virus. In this way, the first disease-resistant plant created by genetic engineering was born.

The first antiviral tobacco caused a sensation around the world after it was successfully created by genetic engineering, and scientists believe that genetic engineering can create new plants and give plants beneficial traits to humans. Since the genetically engineered antiviral tobacco has been planted in large quantities in the field, a variety of plants such as insect-resistant cotton, shelf-stable tomato, and blue rose are appearing one after another, and the field of genetic engineering has entered a stage of rapid development. var _hmt = hmt ||function()

<>Although this study shows that through genes and assisted reproductive technology, it is possible to make two male old fierce spike rats reproduce, but this does not mean that males can directly reproduce. The study was carried out under laboratory conditions and only concerned the reproductive process of mice, which in humans is very different from that of mice. In addition, there is currently no evidence to show whether it is safe and feasible to apply this technology to humans.

In addition, the research faces ethical and moral challenges. In human reproduction, there are many moral and ethical guidelines that need to be followed in order to ensure the health and welfare of children, including avoiding any potential risks and adhering to ethical standards. Therefore, although this study provides us with a new understanding and method, more research and evaluation is needed before it can be applied to humans.