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1、G M FOODS,Genetically modified foods (转基因食品）,dnetkl,02 BUSINESS SECTIONWe have many PowerPoint templates that has been specifically designed to help anyone that is stepping into the world of PowerPoint for the very first time.,In 1974, A scientist named Cohen used the genetically modified technology
2、 first, which put the penslnPenicillin-resistant gene(抗青霉素基因） into coli kla （大肠杆菌）, and it kicked off peoples study to genetically modified technology.,WHEN WAS THE GMT USED?,GMT TIPS,THE GREAT ACHIEVEMENT,In 1978, Daniel Nathans and Werner Arber won the Nobel Prize in medicine, who devoted themselv
3、es to the research of genetically modified technology.,THE CATEGORY :,Acording to diffirent objects, these fall into GM Plants、 GM animals and Microbials makrbl genome dinm rearrangement rirendmnt (微生物重组）.,In 1990S, GM foods were first put on the market.Plants were the most common GM foods.Such as c
4、orn, soybean, canolaknl and cotton .,GM Plants,VS,Supportive,opposed,Advantages and disadvantages,GM foods are a blessing to the soaring world population.,GM foods pose a threat to the environment and human health.,Guarantee of food supplyTolerance to cold,heat and droughtTolerance to herbicideshbsa
5、d 除草剂and insecticidesnsektsad 杀虫剂.,Environmental hazardshzdIrreparable不能挽回的 harm to other organismsGenes transferring to non-target species,Human health risksAllergenicity and cancer risks Unknown effects on human health,Advantages and disadvantages,Benefits to human healthSufficient food and highly nutritionPossible pest害虫 and disease resistance,Side A,Side B,THANK YOU ！,
