Positive And Negative Effects Caused By Genetic Modified

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advantages and disadvantages of GM foods

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  • There are some misstatements in this presentation, including that GMO's lead to reduced pesticide use. Actually, rates increase with most gmo crops. The Canadian gov't found that after 13 yrs, gmo crops actually had lower yields, were much less nutritional, used higher amounts of poisons “Thirteen years ago when GM soya and rapeseed was introduced in Canada (and in the US) the Corporations and Government told farmers that GM would increase yields, be more nutritious, use less chemicals, and feed a hungry world. Now we will always have a sustainable agriculture, they claimed. The Canadian Department of Agriculture figures states canola yields have decreased at least ten percent and soya at least fifteen percent [4], but worst of all, farmers are using three to five times more chemicals because of the GM superweeds that have developed. The reality is that the nutritional content of all crops are down fifty percent of what they were before GMOs were introduced and now we have less yields and more chemicals used, exactly the opposite of what Monsanto promised.”
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  • nice awesome happy new year everyone
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  • thanks for your share...
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  • Thank you for your information....It made me have more understanding of GM food. Good format,picture and detailed content.... Well done!
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Positive And Negative Effects Caused By Genetic Modified

  1. 1. positive and negative effects caused by Genetic modified food <br />By Nengguang LIU<br />
  2. 2. Definition of Genetic modified (GM) foods<br />The term Genetically-modified (GM) foods is most commonly used to describe crop foods and animal products which are modified by molecular biology techniques. <br />
  3. 3. Table of content<br />HUMAN HEALTH<br /><ul><li>Advantages
  4. 4. disadvantages</li></ul>ENVERIOMENT<br /><ul><li>Advantages
  5. 5. Disadvantages</li></ul>YEILD OF FOOD<br /><ul><li>Advantages
  6. 6. Disadvantages</li></ul>SUMMARY<br />
  7. 7. HUMAN HELATH<br />The debate surrounding the human health of using<br />GM foods is growing increasingly complex, intense<br />and emotional.<br />
  8. 8. ADVANTAGES Vs. Disadvantages<br />AD: provide more nutrition than unmodified foods Such as the mineral, vitamin.<br />DisAD:Possible to cause an unexpected allergen <br />or allergic reaction in susceptible individuals <br />because of the foreign gene which was <br />introduced by GM project. <br />
  9. 9. Enverioment<br /> The environmental implications of producing GM products<br /> become a subject of much debate. <br />
  10. 10. ADVANTAGES Vs. Disadvantages<br />AD: Reduce agricultural wastes <br /><ul><li>Reduce the chemical pesticides
  11. 11. Reduce the herbicides</li></li></ul><li>ADVANTAGES Vs. Disadvantages<br />DisAD: <br /><ul><li>GM foods lead unintended harm to other organisms(eg. kill various of insect larvae indiscriminately),
  12. 12. GM foods result the non-target effects to the environment (eg. weeds would then be herbicide tolerant as well).</li></li></ul><li>Increasing food yield <br />Can VS. Can not <br />Against<br /> High Food Yield <br /> Low Food Yield<br />
  13. 13. Summary<br /> It can be seen that GM foods do have the potential to solve many of the world&apos;s hunger and malnutrition problems, and to help protect and preserve the environment by increasing yield and reducing reliance upon chemical pesticides and herbicides.<br />

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