转基因食物英文ppt

1、Its In The DNA -The GM Food内容陈述SimpleIntroductionAdvantagesand DisadvantagesApplicationConclusionIIIIIIIVTopic The GM Food IIIIVIIISimple IntroductionGenetically modified (GM) foods are foods derived from genetically modified organisms. Genetically modified organisms have had specific changes introd

2、uced into their DNA by genetic engineering techniques.the process of gene embedding IIIIVIIISimple IntroductionFrom 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

3、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. IIIIVIIIAdvantages and Disadvantages Increase productionUsing GM technology we can raise the prductionof the crops and cattles significantly. IIIIVIIIAdvan

4、tages and Disadvantages Generate new traits to meet peoples demandSuchAshehe. IIIIVIIIAdvantages and Disadvantages Improve the nutritional contentBy embedding special gene in plants and making it expressed,the plants will become a treasury of different nutrition and a vaccine against disease IIIIVII

5、IAdvantages and DisadvantagesIn 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 havent had a long enough period to observe its overall influence on th

6、e 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. IIIIVIIIAdvantages and DisadvantagesIIIIVIIIApplicationAlthough the GM technology was born and grows with controversies,the extent of its applicati

7、on is becoming more and more large all over the world.0 01010202030304040505060601996199619971997199819981999199920002000200120012002200219961996199719971998199819991999200020002001200120022002the area of the plantation of the GMFIIIIVIIIApplicationDiffenent countries react to the GMF in different a

8、ttitudes.U.SJapEUtolerant limit of modificationNo limit 5% 0.5% clear labelon the outer packingvoluntarycompulsorycompulsory From the table we can read that America is fairly optimistics towards the GMF,on the other side,the EU appears quite cautious.IIIIVIIIApplicationAny position in the process of

9、 GMF popularization has its own reason.But for China,the biggest devloping country with the largest population and relatively few land,the highest priority is to establish especialized laws and regulations for GMF.Only under the clear guideline of the goverment can we reduce senseless arguments and

10、social panic ,so we are able to move on in the right direction of the production of GMF. IIIIVIIIConclusionWhen I finished this article,I feeled the GMF technology is indeedly an excellent solution to the future food problem.But,right now,this technology is not mature yet and we dont have to put it into production in a wide range.