Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Textbook Question
Chapter 14, Problem 1AC
As you may know, many Insects have evolved resistance to common pesticides. Do you think that insects might evolve resistance to Bt crops? If this is a risk, do you think that Bt crops should be planted anyway? Why or why not?
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Agricultural biotechnologists have developed genetically modified tomato plants in which ethylene production is blocked. Why might such a plant be valuable to tomato growers?
A 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?
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To make the plant become resistant to herbivores.
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To add nutritional value to the rice kernels.
To allow easy harvesting and processing.
If you were breeding cotton plants to have increased water uptake in dry soils, you could breed plants that contain more amino acids and carbohydrates in the root cells. Why would this be effective and why might crop yield be negatively affected?
Chapter 14 Solutions
Biology
Ch. 14.1 - define biotechnology?Ch. 14.1 - Prob. 2CYLCh. 14.1 - define GMO and transgenic organism?Ch. 14.2 - describe natural processes that recombine DNA,...Ch. 14.3 - Prob. 1CSCCh. 14.3 - Prob. 1CYLCh. 14.3 - summarize how CRISPR-Cas9 works and explain why it...Ch. 14.4 - For any single person, a given STR always has...Ch. 14.4 - There are many other applications in which DNA...Ch. 14.4 - Prob. 1CYL
Ch. 14.4 - Prob. 2CYLCh. 14.5 - Restriction enzymes are isolated from bacteria....Ch. 14.5 - Many countries regulate the use of genetically...Ch. 14.5 - explain how genes are inserted into a plasmid, and...Ch. 14.5 - Prob. 2CYLCh. 14.6 - Prob. 1CTCh. 14.6 - Prob. 1HYEWCh. 14.6 - describe the advantages of genetically modified...Ch. 14.6 - list some examples of how genetically modified...Ch. 14.6 - Prob. 3CYLCh. 14.7 - Explain how fetal DNA could be used to establish...Ch. 14.7 - explain how biotechnology is used to diagnose both...Ch. 14.7 - describe how transgenic organisms are used to...Ch. 14.7 - describe the procedures and advantages of gene...Ch. 14.8 - explain why people might be opposed to the use of...Ch. 14.8 - Prob. 2CYLCh. 14.8 - Prob. 1CTCh. 14 - Prob. 1MCCh. 14 - Prob. 3MCCh. 14 - A restriction enzyme a. cuts DNA at a specific...Ch. 14 - Prob. 5MCCh. 14 - Prob. 1FIBCh. 14 - _________is the process whereby bacteria pick up...Ch. 14 - The _______ is a technique tor multiplying DNA in...Ch. 14 - Matching DNA samples in forensics uses a specific...Ch. 14 - Prob. 5FIBCh. 14 - Describe two natural forms of genetic...Ch. 14 - Prob. 2RQCh. 14 - Prob. 3RQCh. 14 - Prob. 4RQCh. 14 - Prob. 5RQCh. 14 - Prob. 6RQCh. 14 - How does gel electrophoresis separate pieces of...Ch. 14 - Prob. 8RQCh. 14 - Prob. 9RQCh. 14 - Prob. 10RQCh. 14 - As you may know, many Insects have evolved...Ch. 14 - Prob. 2AC
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- If you were breeding cotton plants to have increased water uptake in dry soils, you could breed plants that contain more amino acids and carbohydrates in the root cells. Why would this be effective and why might it also negatively affect crop yield?arrow_forwardThe roots of legumes, such as peas and beans, have special nodules that are home to large numbers of bacteria. What benefit do these bacteria provide to the plant? What do they receive in exchange?arrow_forwardWhat would be the consequences of a global ban on the use of all pesticides in food crops?arrow_forward
- Certain genetically modified tomatoes were designed to suppress (reduce the effectiveness) the enzyme polygalactonase which delays ripening. How does this genetic modification affect the consumer and the diet of individuals in developing countries? A. Delaying the ripening process means that the tomatoes are more likely to freeze on the vine before becoming ripe. This freezing process locks in the minerals and beneficial nutrients so that the tomato can be transported without losing its nutritional benefit. B. Delaying the ripening process means that the tomatoes are more likely to have a shorter shelf life and have to be eaten quicker. C. Delaying the ripening process means that the tomatoes have a longer shelf life, so they don't rot as quickly. The tomatoes survive delivery to the consumer and provide nutritional value to more people. D. Delaying the ripening process means that the tomatoes can stay on the vine longer to receive nutrients. Once…arrow_forwardMiracle RiceRice is staple food in Asia. In the 1950s, Asia faced food shortage and an impending famine. If you have relatives that lived in Asia during the ’50s and ’60s, they may tell you that due to the rice shortage, many starved and those who were lucky had to supplement their diet with other crops, such as barley. In 1962, an organization focused on research and development of rice called International Rice Research Institute (IRRI) developed a high-yielding variety of rice by crossing the two types of rice from Indonesia and China. The result was ground breaking. The new variety called IR8 (India Rice 8) increased its yield as much as 10 times the traditional variety of rice. By the early 1970s, many rice farmers in India, the Philippines, and Vietnam switched to cultivating IR8 rice, making these countries into major rice exporters, preventing a mass famine in Asia, and saving millions of lives. 1) Is the IR8 rice variety considered a genetically modified organism (GMO)? Why or…arrow_forwardwhat process can give plants an advantage because of the presence of these bacteria undergoing the following process can provide them with nitrogen for the production of protein? A. nitrifying B. denitrifying C. ammonification D. nirtogen fixingarrow_forward
- What is aspect of your life that come from dependence on agriculture and its culture effects? Where did the ingredients of your favorite foods originate from?arrow_forwardWhich of the following would decrease nitrogen availability for a pea plant? a. Inability of the plant to produce flavonoids b. Formation of Nod factors c. Presence of oxygen in the soil d. Production of leghemoglobinarrow_forwardTHINK IT THROUGH You are a USDA official and must decide whether to allow the commercial planting of a new genetically modified strain of cabbage that is tolerant to a best-selling herbicide and has twice the vitamin content of regular cabbage. What questions would you ask of scientists before deciding whether to approve the new crop? What scientific data would you want to see? Would you also consult nonscientists? Would you consider ethical, economic, and social factors?arrow_forward
- Why would a C4 plant have a competitive advantage at high temperatures? a) There is more rubisco in all the cells of C4 plants. b) C4 plants use rubisco to fix carbon. c) C4 plants use PEP carboxylase to fix carbon. d) C4 plants have higher rates of photorespiration.arrow_forwardFood plants or crops, which have been genetically altered, are known as genetically modified foods. The genetic alteration is meant to make it commercially competitive, yet it is not without environmental and ethical concerns and dilemmas. What according to you are the Four main short term benefits to the producer/consumer of genetically modified food crop, elaborate? Also identify and explain any Four long term negative impact of genetically modified food crop on the environment as well as human health.arrow_forwardCertain genetically modified tomatoes were designed to suppress (reduce the effectiveness) the enzyme polygalactias which delays ripening. How does this gene modification affect the consumer and the diet of individuals in developing countries? options: Delaying the ripening process means that the tomatoes have a longer shelf life. The tomatoes survive delivery to the consumer and provide nutritional value to more people. Delaying the ripening process means that the tomatoes can stay on the vine longer to receive nutrients. Once picked, these tomatoes will ripen rapidly to provide a full taste to the consumer. Delaying the ripening process means that the tomatoes are more likely to freeze on the vine before becoming ripe. This freezing process locks in the minerals and beneficial nutrients so that the tomato can be transported without losing its nutritional benefit. Delaying the ripening process means that the tomatoes are more likely to have a shorter shelf…arrow_forward
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