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Two complaints about some transgenic plants presently in commercial use are that
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Genetic Analysis: An Integrated Approach (3rd Edition)
- What 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_forwardRemember 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_forwardBt eggplant is a genetically-modified eggplant developed by Filipino scientists. It was developed to become pest-resistance containing the gene of the bacterium Bacillus thuringiensis which contains toxins that are lethal to some insects including the pest bollworm. Currently, it is under controversy because of a legal battle between its supporters and those who are against it. Should the government ban the production, commercialization and consumption of the said product?arrow_forward
- Genetically modified foods are products produced from organisms that have had changes introduced into their DNA using the methods of genetic engineering. Golden rice, Flavr Savr tomatoes and Roundup Ready soyabeans are products of this technology. Discuss the advantages of these three genetically modified crops. Name ONE (1) strategy to produce transformed plant cells.arrow_forwardBesides using vector-based methods to transform crop plants, elaborate on THREE (3) other methods to introduce gene of interest into plant cells for the production of transgenic crops.arrow_forwardThe Pfizer Covid-19 vaccine is one of the vaccines currently being rolled out for mass vaccination in South Africa to protect the population against SARS CoV-2, and the active compound in this vaccine is an mRNA molecule. a) The starting material for productio of this vaccine is a copy of the coronavirus spike protein gene cloned into a ppasmid. List the main experimental steps in the vaccine production process, to go from a plamid to an mRNA molecule. b) Which molecular processes in the cell will allow an injected strand of mRNA to produce anti-Covid immunity in the vaccine recipient?arrow_forward
- You are cloning a gene called ice, which will help strawberry plants survive in cold weather, into a test group of strawberry plants. Select the events you would use to genetically engineer these plants. Insert the ice gene into the T-DNA region of a Ti plasmid; transform Agrobacterium tumefaciens with this plasmid; Inoculate a culture of strawberry plant cells with Agrobacterium tumefaciens; Select plant cells that have taken up the ice gene. Insert the ice gene into the T-DNA region of the Agrobacterium tumefaciens chromosome; Inoculate a culture of strawberry plant cells with Agrobacterium tumefaciens; Select plant cells that have taken up the ice gene. O Insert the ice gene into a Ti transposon; Introduce the transposon into Agrobacterium tumefaciens Ti plasmid: Inoculate a culture of strawberry plant cells with Agrobacterium tumefaciens: Select plant cells that have taken up the ice gene. Insert the ice gene into a Ti bacteriophage; transduce Agrobacterium tumefaciens with this…arrow_forwardWhy is Agrobacterium mediated genetic transformation described as Natural Genetic engineering in plants?arrow_forwarda) How are mutations beneficial for plant breeding? Discuss with an example b) Explain in brief the technology that made us self-sufficient in food production.arrow_forward
- Bacteria are often the preferred hosts for genetic engineering projects by splicing in novel genes from eukaryotes into plasmids, which are moved into competent bacteria. For instance, the gene for human insulin was isolated and moved into a bacterium, which can now produce the much-needed chemical. Previously, type 1 diabetics had to rely on professionals that gathered insulin from human cadavers, cows, and pigs. In order for this feat of genetic engineering to occur, researchers had to start with an unspliced mRNA transcript for h insulin. Agree/Disagree? Explain your response.arrow_forwardBesides using A. tumefaciencs in the generation of transgenic plants, elaborate on the THREE (3) methods to introduce genc of interest into a plant cell.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
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College