转基因食物英文课件

the process of gene embedding
Simple Introduction
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III IVFrom the 1980s,America has begun the exploration on GM organisms.The first batch of GM food such as tomato has been put into production since 1993.Until 2013,GM food has taken up more than 60% of the processed food in the US.Even in China,the GM food also has gradually invaded into the course of food processing in an anonymous way.
Genetically modified (GM) foods are foods derived from genetically modified organisms. Genetically modified organisms have had specific changes introduced into their DNA by genetic engineering techniques.
Although the GM technology was born and grows with controversies,the extent of its application is becoming more and more large all over the world.
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Simple Introduction
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Increase production
Using GM technology we can raise the prduction of the crops and cattles significantly.
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Advantages and Disadvantages
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Advantages and Disadvantages
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Simple Introduction
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Advantages and Disadvantages
Application Conclusion
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Topic 内容陈Th述e GM Food
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Diffenent countries react to the GMF in different attitudes.
tolerant limit of
modification
clear label
on the outer packing
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U.S
No limit voluntary
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the area of the plantation of the GMF
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Application
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Advantages and Disadvantages
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In fact,the GM technology can do much more than described above,especially when our science is speeding up.At the same time,its novelty is its weakness,after all,the GM technology is not yet mature.We haven't had a long enough period to observe its overall influence on the nature.The GM technology may lead to some irreversible damages on the safety of human body and enviroment.When we find a flaw, it must be quite large...
Fra Baidu bibliotek
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Improve the nutritional content
By embedding special gene in plants and making it expressed,the plants
will become a treasury of different nutrition and a vaccine against disease
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Advantages and Disadvantages
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Generate new traits to meet people's demand Such As
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Advantages and Disadvantages