genetically modified foods
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Genetically Modified Foods. What are Genetically Modified Organisms (GMOs)?. Organisms created when scientists move the genes they want from one organism to another. How is that different from breeding?. Breeding. Genetic Engineering. - PowerPoint PPT PresentationTRANSCRIPT
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Genetically Modified Foods
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What are Genetically Modified Organisms (GMOs)?
Organisms created when scientists move the genes they want from one organism to another.
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How is that different from breeding?Breeding Farmers and breeders
take traits they like, and try to put them into similar species.
Only works with similar species.
Much slower process Ie: If a breeder wants a
smaller dog, he mates two small dogs together. Do that enough, and you get a chihuahua.
Genetic Engineering
Scientists take traits they like, and put them into any species they want
Can work with any species (plants mixed with animals, etc)
Faster process. Ie: If a scientist wants to
make wheat resistant to an herbicide, he/she might mix animal DNA into the plant.
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What are the benefits?
Can raise food that: Is more nutritious (put in
nutrients we might otherwise not get, like extra vitamins)
Grows faster Is more resistant to
diseases or insects Uses less resources (like
water) to grow
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What are the drawbacks?
Some people worry that GMOs might not be safe
Using more pesticides might make stronger bugs
GMO foods can be owned by corporations who have all the advantages
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GMA-AnimalsAnimals modified to grow faster and
resist disease.Cows produce more milk on less feed.http://www.youtube.com/watch?v=NkhdGG5pVW8&feature=related Chickens are modified so they grow
faster at a more rapid rate.http://www.youtube.com/watch?v=E5UPE7FS8W0&feature=related
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The Growing Trend in the U.S.
http://www.youtube.com/watch?v=40RWPeaPZpU
http://www.youtube.com/watch?v=yFg3WDXaxN4&fea
ture=relmfu
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Who uses GMOs? In 2003, six countries grew 99% of the world’s GMO food. In 2003 55% of the 76,000,000 hectares of soybeans planted around the world
were transgenic , or genetically modified Between 1996 and 2003, the global area of GMO farms increased from 1.7 million
to 67.7 million hectares.
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Video Time!
Watch the documentary “Food Inc.” Use the information in the video to answer the provided questions.
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What do you think?1. Do you feel comfortable eating GMOs?
Why or why not?2. Do you feel you have enough
information to make a good choice? What else do you need/want to know?
3. How should the Canadian government react to concerns about GMOs?