What is genetically modified food? What technology is used to make genetically modified food?

By connecting the constructed expression frame with an expression vector with a homologous arm of the receptor, the expression frame to be expressed may be integrated into a specific site through homologous recombination. Different from gene gun, crisper-cas9 and protoplast transformation, we used Agrobacterium-mediated transformation, and there were only two results: 1, which integrated into the correct site we wanted to express; 2. There is no integration at all. The recipient bacteria were screened by antagonistic sensitivity, and then the integration was successfully detected by PCR identification and enzyme digestion identification. Let's talk about the principle. It's also quite superficial.

Application value: there is only what you can't think of, and there is nothing that genetic engineering can't do. Traditional cross breeding can be bred for thousands of years, and genetic engineering can be bred for you after more than ten years. If you plant wheat that can grow in cold weather in Northeast China, wheat that can grow in saline-alkali land, or even directly irrigate with seawater, you can produce the same amount of food as fertile fields.

Not to mention group immunity, we will never know if we are the one who was sacrificed. The patent issue of genetically modified crops is most likely to confuse the public, for example, the facts are not so pessimistic. How many people with a little patent knowledge know that even though foreign applicants may have a patent right for a transgenic technology abroad, if foreign applicants do not file a patent application for the transgenic technology in China and get authorization, the transgenic technology will not be protected by patent in China; Furthermore, as mentioned earlier in this part, China's patent law only protects the acquisition method of genetically modified crops, but does not protect crops with certain genetically modified traits. Because the methods of obtaining or realizing a genetic trait can be different, even if a foreign applicant obtains the patent right of a genetically modified crop "itself" in other countries, if he wants to cause a patent dispute in China on this basis, it will not be supported by China's patent law.