Concept explainers
Two complaints about some transgenic plants presently in commercial use are that
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Genetic Analysis: An Integrated Approach (2nd Edition)
- 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_forwardWhat is the difference between a transgenic plant and a plant produced through selective breeding?arrow_forwardIRRI is currently in the process of developing a new variety of transgenic rice called Golden Rice. What is a transgenic organism? Describe what makes Golden Rice a transgenic organism. Why was Golden Rice developed?arrow_forward
- An unapproved form of gene therapy, known as enhancement gene therapy, can create considerable ethical dilemmas. Why?arrow_forwardwhat are some of the benefits of producing transgenic crops for farmers and for consumers? List at least three benefits.arrow_forwardIn contrast with the genomic manipulations of animals and plants described in this chapter, human genetherapy is directed specifically at altering the genomes of somatic cells rather than germ-line cells.Why couldn’t or wouldn’t medical scientists try to alter the genome of human germ-line cells?arrow_forward
- What are some of the problems that might arise if you were trying to produce a eukaryotic protein in a bacterium? How ight using transgenic plants or animals help solve some of these problems?arrow_forwardA research group is studying a bacterium X that binds to mucosal cells in the lung and invades. Wildtype X has an LD50 value of 10 bacteria when administered to mice by inhalation. Using transposon mutagenesis, the researchers have isolated two mutants of X that they call Xmut1 and Xmut2, both of which have LD50 values of 105 when inhaled by mice. However, in tissue culture cells, Xmut1 can invade the cells just as well as wild-type X, while Xmut2 cannot. Provide a possible explanation for these results.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
- Which of the following would be considered a transgenic organism? A. a human whose human blood-clotting gene was silenced B. a fern grown in cell culture from a single fern root cell C. a rat with rabbit hemoglobin genesarrow_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_forwardWhat is the major difference between genomic DNA and cDNA? List various vectors and state which is the best vector to create transgenic plants? What is the scientific logic on which CRISPR Technology has been designed? Why Artificial Intelligence is turning out to be a potential replacement for traditional radiological approaches? Review the introduction and discussion in the Nature Medicine Paper on the blackboard? What is immunotherapy? What was the underlying motivation that inspired James Allison to undertake this direction of research?arrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College