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Review Burning Question 11.11, which describes the difference between selective breeding and genetic engineering. Why do you think that selectively bred plants are generally acceptable to consumers, whereas many people avoid genetically engineered foods? Some scientists are suggesting “rewilding” crops—that is, genetically modifying crop plants to restore genes that were bred out many generations ago. The genes, which would come from ancient plant varieties that had not undergone selective breeding, might improve drought tolerance or confer other useful traits. Do you think the resulting plants, which would technically be genetically modified organisms, would be more acceptable to consumers than plants receiving genes from a bacterium? Why or why not?
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BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
- What is the difference between plants developed through selection or conventional plant breeding and genetically modified crops?arrow_forwardGenetic engineering of plants provides an opportunity to alter their properties or performance in order to improve upon their utility. Such technology may be used to modify the expression of genes already present in the plants, or to introduce new genes of other species with which the plant cannot be bred conventionally. In fact, humans have engaged in genetic manipulation for millennia, producing plant and animal varieties through selective breeding and hybridization that significantly modify genomes of organisms. How has this technology created novel genetic information by specific alteration of cloned genes? (provide an example). Why do you think modern genetic engineering, has met with so much opposition? Should some forms of genetic engineering be of greater concern than others? Explain. In your response provide a specific example from literature to describe the implications of this technology (good or bad).arrow_forwardWhich of the following problems has/have been addressed through the development ofgenetically modified plants? 1. Vitamin deficiencies in children. 2. Susceptibility of crops to insect pests. 3 Accumulation of toxic ions in agricultural soils. 4. Both 1 and 2 are correct. 5. Women menstruation cycle.arrow_forward
- Some crop plants are modified genetically by manipulating their genes. How are they made beneficial?arrow_forwardWhat is grafting? Why is it used in horticulture practices?arrow_forwardIn most parts of the world, commercial potato crops are produced asexually by planting tubers. However, in some regions of the world, such as Southeast Asia and the Andes, some potatoes are grown from true seeds. Discuss the advantages and disadvantages of growing potatoes from true seed.arrow_forward
- What are some of the impacts of biotechnology on crop plants in the United States? Choose the INCORRECT answer. Select one: a. Biotechnology of crops is now illegal due to its dangerous side effects. b. Environmental effects of crop biotechnology are ruining farmlands to the point of no return. c. Biotechnology of crops has been performed dating back to 1000 B.C. d. Crops made by biotechnology are safe to eat.arrow_forwardA nine-year research and experimentations have successfully developed rice plants with golden hue kernels instead of the usual white kernels. What is the advantage of this modified rice plant? Select one: To make the plant become resistant to herbivores. To provide sufficient rice produce due to its shorter cycle. To add nutritional value to the rice kernels. To allow easy harvesting and processing.arrow_forwardMuch of the controversy over genetically engineered foods has centered on whether special labeling should be required on all products made from genetically modified crops. Some people have advocated labeling that identifies the product as having been made from genetically modified plants. Others have argued that food labeling should be required to identify only the ingredients, not the process by which they were produced. Choose a side in this issue and justify your stand.arrow_forward
- What risks are involved in genetic engineering of crop plants? How do these risks compare with other risks involved in traditional plant breeding?arrow_forwardGiven a chance to become a bioentrepreneur, which of the plant products will you be able to place in the market? Why? What are the challenges in the technical aspect that you might encounter in developing such product?arrow_forwardThere is a strict conditions that should be met before genetic engineering in plant crops could be successful, which of the following is true? * A. there should be a large number of genes B. genes that would be added should be specified C. genes that would be added should be mixed with other desirable genes D. the laboratory conditions should have ample oxygenarrow_forward
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