Foods directly eaten by genetically modified organisms or produced as processing raw materials are collectively referred to as "genetically modified foods".
That is, one or more foreign genes are transferred into organisms (animals, plants, microorganisms, etc.). ) By means of genetic engineering, the corresponding product (peptide or protein) can be effectively expressed, so that the organism can be used as food or food processed from it.
In fact, the basic principle of transgene is not difficult to understand, which is similar to conventional cross breeding. Hybridization is to transfer the whole gene chain (chromosome), and gene transfer is to select the most useful short gene transfer. Therefore, transgene has higher selectivity than hybridization.
Haige
2008-07-29
17:26
Report to the authorities
Genetically modified food refers to food, food raw materials and food additives made or produced by animals, plants and microorganisms improved by biotechnology. According to one or some characteristics, by some biotechnology methods, the genes of animals and plants are modified to make animals, plants or microorganisms have or enhance secondary characteristics, which can reduce production costs and improve the value of food or food raw materials. At present, scientists all over the world can't draw a conclusion about the safety of genetically modified food in a short time. Although controversial, one thing to remind everyone is that all kinds of genetically modified foods must be indicated in the trademark.