Principles Of Biology 1 (GMO)
1. Identify the organisms that would be considered genetically modified. Check all that apply.
Answer: A plum that has been given a new gene that protects it from a virus, A tomato that ripens more slowly because a gene was removed.
9. Which of the following is a way that bacteria have been genetically modified?
Answer: Bacteria have been engineered to produce proteins that protect plants, Bacteria have been engineered to produce pharmaceutical compounds, Bacteria have been genetically modified to break down toxic chemicals, Bacteria have been genetically modified to produce biofuels.
3. The modern era of genetic manipulation began when scientists first learned how to insert genes into.
Answer: Bacteria.
10. Due to public pressure, the use of genetically modified soybeans in U.S. agriculture has continually decreased since 1996.
Answer: False.
2. A gardener saves seeds from a good producing red tomato plant in her garden. She plants the seeds the following summer and is surprised when the plant produces orange tomatoes. Then she remembers the red tomato plant was next to a plant that produced yellow tomatoes. This an example of a GMO.
Answer: False.
6. Only plants and bacteria have been successfully genetically modified.
Answer: False.
7. Which of the following best explains the difference between selective breeding and genetic engineering?
Answer: Genetic engineering involves directly manipulating the DNA of organisms, whereas selective breeding makes use of existing, naturally present variation and the process of sexual reproduction.
4. What type of genetic modification did researchers make to E. coli in their first experiment?
Answer: The bacteria were given a gene that provided them with resistance to an antibiotic.
5. Almost all the corn grown in the United States is genetically modified.
Answer: True.
8. Many drugs manufactured by pharmaceutical companies are produced with the assistance of genetically modified organisms.
Answer: True.
