Transgenic rapeseed with high calcitonin can prevent osteoporosis in the elderly, and the rice containing human lactoferrin gene can prevent diarrhea.

A few days ago, the report released by the international service organization for agricultural biotechnology application showed that after more than 10 years of promotion, genetically modified crops developed rapidly. In 2007, 23 countries had planted genetically modified crops all over the world, and 55% of the world's population was eating genetically modified foods more or less.

China has grown 3 million 800 thousand hectares of pgenic cotton, accounting for 69% of China's cotton growing area.

Because of increasing production and income, reducing pesticide and water use, accelerating the development of genetically modified crops has become a hot topic in the field of international agricultural biotechnology.

Huang Dafang, a researcher at the Biotechnology Research Institute of the Chinese Academy of Agricultural Sciences, said that by 2007, 7 million 100 thousand farmers in China had planted genetically modified cotton, which not only gained considerable economic income, but also reduced 400 thousand tons of pesticide emissions.

According to the introduction of the first generation of genetically modified crops, the genetic background of the first generation of genetically modified crops is relatively simple. Transferring a gene, such as drought resistant and insect resistant genes, can play a role.

The next step is to add quality genes, such as golden rice and golden rice, which contain more vitamin A to solve vitamin A deficiency.

At present, scientists in the United States have begun to plant genetically modified rice in large areas. The pgenic rice contains mainly human lactoferrin, lysozyme and human serum albumin, which can enhance the immunity of human body, especially the effect of preventing diarrhea.

At present, the way to treat osteoporosis is to take calcitonin or calcitonin, but this calcitonin is synthesized, 1 grams and 10 thousand yuan, which is very expensive.

However, the seeds of high calccitonin rape produced by our country can produce 3 mg calcitonin per gram, and more than 300 grams of rape seed can yield more than 10 thousand yuan value, which has high economic benefits.