Genetically Modified Foods Quiz
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Questions and Answers

Who should be responsible for weighing the benefits against the costs of genetically modified organisms?

  • Consumers
  • The government
  • Scientists
  • All of the above (correct)

    • What is one of the potential health risks associated with genetically modified organisms?

  • Health risks (correct)
  • Resistance to disease
  • Improved Nutrition
  • Reduced use of chemicals

    • What is a potential environmental risk associated with genetically modified organisms?

  • Environmental risks (correct)
  • Improved Nutrition
  • Resistance to disease
  • Economic risks

    • What is a potential economic risk associated with genetically modified organisms?

    <p>Economic risks</p> Signup and view all the answers

    According to the provided sources, what is a potential effect of transgenic pollen on monarch larvae?

    <p>It harms them</p> Signup and view all the answers

    What is a potential benefit of genetically modified organisms?

    <p>Reduced use of chemicals</p> Signup and view all the answers

    What is the main function of DNA in an organism?

    <p>To contain all the instructions required to make an organism</p> Signup and view all the answers

    What is the purpose of genetic modification in organisms?

    <p>To achieve a desired trait in an organism</p> Signup and view all the answers

    What is an example of a genetically modified food?

    <p>Golden rice</p> Signup and view all the answers

    What is the role of restriction enzymes in genetic modification?

    <p>To cut DNA segments from one genome</p> Signup and view all the answers

    What is the purpose of using a particle gun in genetic modification?

    <p>To shoot small bits of metal into a plant</p> Signup and view all the answers

    What is the name of the bacterium that produces a chemical toxic to insects but not to humans?

    <p>Bacillus thuringiensis</p> Signup and view all the answers

    What is the term used to describe the process of modifying genes?

    <p>All of the above</p> Signup and view all the answers

    What is the purpose of using Agrobacterium in genetic modification?

    <p>To infect plants with a gene of interest</p> Signup and view all the answers

    What is the total number of foods approved for use by the Canadian Food Inspection Agency?

    <p>48 foods</p> Signup and view all the answers

    What is the condition under which labeling of GM foods is mandatory?

    <p>When there is a health or safety concern</p> Signup and view all the answers

    Which of the following is a potential environmental benefit of GMOs?

    <p>Reduced use of herbicides</p> Signup and view all the answers

    What is an example of a humanitarian benefit of GMOs?

    <p>Edible vaccines</p> Signup and view all the answers

    Which of the following crops has been approved for use by the Canadian Food Inspection Agency?

    <p>Soybeans</p> Signup and view all the answers

    What is a potential benefit of GMOs in terms of food production?

    <p>Increased food production</p> Signup and view all the answers

    What is a potential benefit of GMOs in terms of farming?

    <p>Improved farming</p> Signup and view all the answers

    What is the website where details can be found about GMOs in Canada?

    <p><a href="http://www.hc-sc.gc.ca/food-aliment/mh-dm/ofb-bba/nfi-ani/e_novel_foods_and_ingredient.html">http://www.hc-sc.gc.ca/food-aliment/mh-dm/ofb-bba/nfi-ani/e_novel_foods_and_ingredient.html</a></p> Signup and view all the answers

    What is a potential environmental hazard associated with genetically modified Bt corn?

    <p>High mortality rates in monarch butterfly larvae</p> Signup and view all the answers

    What is a potential solution to prevent gene transfer to non-target species?

    <p>Engineer the plants so that pollen doesn't contain the foreign genes</p> Signup and view all the answers

    What is a potential human health risk associated with genetically modified organisms?

    <p>Creation of allergens</p> Signup and view all the answers

    What is a potential economic hazard associated with genetically modified seeds?

    <p>Elimination of competition</p> Signup and view all the answers

    What is a characteristic of 'suicide seeds'?

    <p>They are infertile and cannot reproduce</p> Signup and view all the answers

    Why is it challenging to identify potential health risks associated with genetically modified organisms?

    <p>Biological processes involve a lot of interactions</p> Signup and view all the answers

    What is a potential solution to address the issue of 'superweeds'?

    <p>Create buffer zones of non-GM crops around GM crops</p> Signup and view all the answers

    What is the main factor in determining whether genetically modified foods are good or bad?

    <p>Each individual case</p> Signup and view all the answers

    Study Notes

    What are Genetically Modified Foods?

    • Genetically modified foods, also called genetically modified organisms (GMOs), involve the insertion of DNA from one organism into another or modification of an organism's DNA to achieve a desired trait.

    Examples of GMOs

    • Golden rice: contains beta-carotene (Vitamin A), not found in regular rice.
    • Bt corn: contains a chemical normally found in a bacterium (Bacillus thuringiensis) that is toxic to insects but not to humans.
    • Herbicide-resistant plants.

    How are Genes Modified?

    • Restriction enzymes are used to "cut" DNA segments from one genome.
    • DNA ligases are used to "paste" them into another genome.

    How are Animals and Plants Targeted?

    • Microinjection method: injects a solution of DNA into a developing embryo.
    • Agrobacterium: used to infect plants with a gene of interest.
    • Particle gun: shoots small bits of metal coated with the gene into the plant.

    How Common are GM Foods?

    • 48 foods have been approved for use by the Canadian Food Inspection Agency.
    • Examples: corn, canola, potatoes, tomatoes, squash, soybeans, and more.
    • Labeling of GM foods is not mandatory unless there is a health or safety concern.

    Potential Benefits

    • Pest resistance
    • Herbicide resistance
    • Cold tolerance
    • Drought tolerance
    • Increased nutrition
    • Edible vaccines
    • Reduced use of herbicides and chemicals in farming.

    Potential Environmental Hazards

    • Reduced effectiveness of pesticides as insects become resistant to engineered toxins.
    • Harm to other organisms (e.g., monarch butterfly larvae).
    • Gene transfer to non-target species.
    • Loss of biodiversity.

    Potential Human Health Risks

    • Allergens
    • Unknown health risks due to interactions between biological processes.

    Economic Hazards

    • Elimination of competition
    • Suicide seeds
    • Dependence on companies for seeds.

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    Description

    Take this quiz to learn more about genetically modified foods, DNA, and genes. What do you really know about GMOs?

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