Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 44, Problem 1AC
Summary Introduction
To discuss:
The usefulness of insertion of “nitrogen fixation genes” in crop plants.
Introduction:
The crop plants, such as wheat and corn require an abundance of nitrogen for the preparation of food that will be beneficial to humans for their own consumption. The adequate amount of nitrogen is provided to these plants by supplying fertilizers.
Summary Introduction
To discuss:
The changes that will occur in farming practices once the genes are inserted in crop plants.
Introduction:
The genetically engineered plants are modified plants, in which the genes of interest are inserted. The application of this technique is used in various manners, such as making drought-resistant, salt-resistant, plant, and many more.
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Genetic 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).
What makes the species of Agrobacterium ideal for genetic engineering? Describe its characteristics and its role in producing transgenic plants.
Agrobacterium-mediated plant transformation is a method used to create transgenic plants.
Agrobacterium tumefaciens, a soil bacterium works exceptionally well as a natural genetic
engineer. Describe briefly the creation of a transgenic plant using A. tumefaciens with
illustration.
Chapter 44 Solutions
Biology
Ch. 44.1 - Prob. 1CYLCh. 44.1 - distinguish between monocots and dicots?Ch. 44.2 - Prob. 1HYEWCh. 44.2 - explain the difference between meristem cells and...Ch. 44.2 - Prob. 2CYLCh. 44.3 - Prob. 1CYLCh. 44.3 - Prob. 2CYLCh. 44.3 - Prob. 3CYLCh. 44.4 - Prob. 1CSCCh. 44.4 - Prob. 1TC
Ch. 44.4 - diagram an argosperm leaf and describe the...Ch. 44.4 - describe some specialized leaf adaptations and...Ch. 44.5 - Prob. 1TCCh. 44.5 - Prob. 1CYLCh. 44.5 - Prob. 2CYLCh. 44.5 - Prob. 3CYLCh. 44.6 - Prob. 1CYLCh. 44.6 - Prob. 2CYLCh. 44.7 - Prob. 1CSCCh. 44.7 - Prob. 1CYLCh. 44.7 - Prob. 2CYLCh. 44.7 - Prob. 3CYLCh. 44.7 - Prob. 4CYLCh. 44.8 - Prob. 1TCCh. 44.8 - Prob. 2TCCh. 44.8 - Prob. 1CYLCh. 44.8 - Prob. 2CYLCh. 44.8 - Prob. 3CYLCh. 44.9 - Prob. 1TCCh. 44.9 - Prob. 1CYLCh. 44.9 - Prob. 1CTCh. 44 - Taproots a. are characteristic of dicots. b. act...Ch. 44 - Prob. 2MCCh. 44 - Bark a. is a type of epidermal tissue. b. includes...Ch. 44 - Prob. 4MCCh. 44 - Prob. 5MCCh. 44 - Prob. 6MCCh. 44 - Prob. 7MCCh. 44 - Prob. 8MCCh. 44 - Prob. 1FIBCh. 44 - Prob. 2FIBCh. 44 - Prob. 3FIBCh. 44 - Prob. 4FIBCh. 44 - Prob. 5FIBCh. 44 - Prob. 1RQCh. 44 - Prob. 2RQCh. 44 - Prob. 3RQCh. 44 - Prob. 4RQCh. 44 - Prob. 5RQCh. 44 - Prob. 6RQCh. 44 - Prob. 7RQCh. 44 - Prob. 8RQCh. 44 - Prob. 9RQCh. 44 - Prob. 10RQCh. 44 - Describe how water and minerals are absorbed by a...Ch. 44 - Prob. 12RQCh. 44 - Prob. 13RQCh. 44 - Prob. 14RQCh. 44 - Prob. 1ACCh. 44 - Prob. 2ACCh. 44 - Prob. 3AC
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- To produce transgenic plants, plant tissue is exposed to Agrobacteriumtumefaciens and then grown in media containing kanamycin, carbenicillin, and plant growth hormones. Explain the purpose behind each of these three agents. What would happen if you left out the kanamycin?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_forwardthis is an example of biotechnology: In order to increase the yield of oil from canola, research focused on ways to reduce competition from competitor weed plants. Weeds can be controlled by spraying with a herbicide that interferes with biological processes, like amino acid anabolic reactions, in the plant cells. A mutant of canola that is resistant to herbicides is sometimes grown in fields that are sprayed with the herbicide. The majority of canola in Canada, though, is genetically modified to be resistant to herbicides. also use the link: https://youtu.be/VS3kcwgIwm0 Question: Evaluating Biotechnologies in Food Systems As we practice being able to describe choices in Biology you will use this consolidation task to organize details about the advantages and disadvantages of biotechnologies. In an ideal world, all solutions to improving our food system would have no negative consequences. But issues in Biology involve the interaction of many different factors and changes in one…arrow_forward
- Why is Agrobacterium mediated genetic transformation described as Natural Genetic engineering in plants?arrow_forwardWhat is the role of Agrobacterium tumefaciens in the production of transgenic plants? a. Genes from A. fume fociens are inserted into plant DNA to give the plant different traits. b. Transgenic plants have been given resistance to the pest A. tumefacaens. c. A. wmefaciens is used as a vector to move genes into plant cells. d. Plant genes are incorporated into the genome of Agrobacterium tumefaciens.arrow_forwardAgrobacterium tumefaciens is a bacterium that infects a wide range of broad-leaved plants. During infection, a plasmid called Ti is transferred into the plant cells, where that plasmid DNA is integrated into the plant’s genome. Some of the genes encoded by this plasmid are expressed by host cell machinery in the plant cell. These gene products produce plant hormones which stimulate cell division in the infected cells, causing the development of a plant tumor which provides an environment for that bacterium to grow. You are studying a novel isolate of A. tumefaciens and want to determine which of the genes on the Ti plasmid are expressed in the bacterium, and which are expressed in the plant. You start by sequencing the Ti plasmid. a) Considering the DNA sequence of Ti, describe two specific genetic features that would help you to differentiate whether a given gene is likely expressed in the plant or bacterium. b) You collect plant tumor tissue, containing both bacterial and plant…arrow_forward
- Remember that although there are many interesting ideas about genetic engineering of plants and animals, this is specifically about GE bacteria. Please be sure you are answering the following questions: 1) What is the species that was modified, and what species did the introduced genes come from? 2) What is the purpose of the genetic engineering? What were people hoping to accomplish? 3) What are the benefits (or potential benefits) of the engineered bacterium? 4) What are the risks (or potential risks) of the engineered bacterium?arrow_forwardWhat are the purposes of genetic engineering in agriculture?arrow_forwardGenetically modified organisms (GMOs) are used to create human growth hormone, insulin and clotting factor proteins that are used to treat dwarfism, diabetes and hemophilia respectively. Several crops such as corn and soybean have also been genetically modified in order to facilitate either the management or growth of these crops. Why do you think there is push back or opposition against the use of GM food crops but not in the use of products such as insulin, which is also created using GMOs?arrow_forward
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