1. Genetically Engineered Food “over 70% of food products in retail stores contain genetically modified ingredients”

2. First GM Food
1992 –GE Flavr SavrTM tomatoes on the market after approval by FDA.
Objective: make tomato with longer shelf life
How? adding a gene which interferes with the production of the enzyme that breaks down cell walls and results in the softening of fruit
By 1997 no longer grown; bland flavor

4. Most Common GM Foods in U.S.
 Corn
   Soybeans
   Canola
   Cotton
   Sugar Beets
   Alfalfa
   Hawaiian Papaya
   Zucchini
   Yellow Crookneck Squash
Meat- while not GM; raised on GM grain (corn)

5. Some of the Foods That May Contain GM Ingredients:
Infant formula,
salad dressing,
bread,
cereal,
hamburgers and hotdogs,
margarine,
mayonnaise,
cereals,
crackers,
cookies,
chocolate,
candy,
fried food, chips, veggie burgers, ice cream, frozen yogurt,
tofu, soy sauce,, tomato sauce, protein powder…..

6. GM foods not labeled in U.S.

7. Companies opposed to GMO labeling

8. GEFs Facts http://www. teachersdomain. org/resource/tdc02. sci. life
Genetic makeup of organism modified by rearrangement or removal of genes
Incorporating genes from other organisms, called transgenic plant
Ex- "Bt corn" contains a gene from the bacterium Bacillus thuringiensis
Ex- Genes from animal (fish) inserted into genomes of foods such as strawberries or tomatoes for cold resistance

9. GMO Facts Advance tissue culture- produce only part of plant
such as fruit or oil
Transgenomics- insert artificially created DNA into
plant DNA to stimulate mutation of specific gene

10. Advantages Assist food manufacturers Improve storage capacity
ex- Flavr SavrTM Tomato
Pest resistance
ex- virus resistant squash
Herbicide-tolerant crops
Asbromoxynil-tolerant (controls boll weevil) on cotton

11. Concerns
Proteins in milk, eggs, wheat, fish, tree nuts, peanuts, soybeans, and shellfish cause over 90% of food allergies

12. Concerns What can go wrong?

13. What about the terminator gene?
Prevent seeds from reproducing next year
Economics-
Grower must purchase GM seeds next year
Control by GM company
Expense for farmer

14. Cross Breeding vs. GMOs What is cross breeding?
Use closely related species
Takes years to develop useful variety
Useful only 5-10 years; plant becomes more prone
disease or pest

15. Use closely related species
Takes years to develop useful
variety
Useful only 5-10 years; plant becomes
more prone disease or pest
½ time cross breeding
Cuts costs
Insert into animal or plant cell