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?
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To produce transgenic plants, plant tissue is exposed to Agrobacterium
tumefaciens 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?
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- 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.What makes the species of Agrobacterium ideal for genetic engineering? Describe its characteristics and its role in producing transgenic plants.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.
- 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…A hypothetical gene for cephalosporin resistance is found to be carried by a transposon. Explain what a transposon is. Then explain how the cephalosporin resistance could be horizontally transferred between organisms by transformation, conjugation, and transduction. What steps/events would have to occur to allow the transposon to be transferred by each method. Also, explain how it could be transferred vertically between organisms.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.
- What are the advantages and disadvantages of Development of genetically modified crops that are resistant to pests and Drug delivery systems that are based on bacterial or viral host.Why is Agrobacterium mediated genetic transformation described as Natural Genetic engineering in plants?Recombinant bacteria can produce hormones that are normally produced in humans. Briefly describe how this is accomplished.
- The modifiedplasmid is reintroduced back into Rhizobium(step 4) and the genetically transformed bacteria are then selected based on the amp and lacZgenes present within the plasmid. The plasmid may or may not integrate the BBW resistancegene. The treated bacteria may or may not take up the modified plasmid. a) Complete the table below with a yes or no in each space stating whether you would expect these bacteria to grow or not. Type of treated bacteria culture plate(no amp) Culture plate treated with ampicillin Plasmid not taken up Plasmid taken up (WithoutBBW resistancegene) Plasmid taken up (WithBBW resistancegene) B) Outline how the genetically transformed bacteria containing the BBW resistance gene can beselected based on the amp and lacZgenes present within the plasmid.The 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?Your supervisor asked you to insert a specific stress-tolerant gene into a tissue cultured plant batch. What can be your possible approach? You may only give a flow chart to show your process.