介绍了转基因食品的实验室操作步骤和外源基因在转基因动、植物上的表达方法,同时叙述了目前国内外在转基因食品方面所采用的先进的检测手段,探讨了人们对转基因食品的安全性评定及其现存的危害,最后以大豆为例展望了转基因食品的发展前景世界转基因大豆的应用及其安全性进行了一些初步的探讨,并展望了生物技术在大豆品种改良中的应用前景。 The laboratory procedures of genetically modified foods and the expression methods of exogenous genes in transgenic plants and plants were introduced. Meanwhile, the advanced detection methods used in genetically modified foods at home and abroad were described, and the safety of genetically modified foods Finally, taking soybean as an example, the prospects of the development of genetically modified foods are prospected. The application and safety of genetically modified soybean in the world are discussed in the first place. The application prospect of biotechnology in the improvement of soybean varieties is also forecasted.