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- How would a scientist introduce a gene for herbicide resistance into a plant?13. Suppose a biotechnology company has developed a GMO, a transgenic plant that expresses Bt toxin. The company sells its seeds to a farmer under the condition that the farmer may plant the seed, but not collect seed from the plants that grow and use it to produce crops in the subsequent season. The seeds are expensive, and the farmer buys seeds from the company only once. How could the company show experimentally that the farmer has violated the agreement and is using seeds collected from the first crop to grow the next crop?Flavr savr Tomato Golden rice, Roundup ready soyabean In order to generate GM foods mentioned above, various gene transfer methods are required to be conducted on these plants. Discuss on both vector-mediated and direct DNA transfer to deliver foreign genes into plants.
- Why is “Agrobacterium-mediated genetic transformation” in plants described as natural genetic engineer of plants?Genetically Modified Foods The creation of transgenic crop plants using recombinant DNA methods involves the transfer of just one gene or a small number of genes to the plants, in contrast to classical breeding methods in which hundreds or even thousands of genes are transferred at once. Explain why this is true. If fewer genes are transferred during the creation of transgenic crops, why are some people afraid that they are dangerous?BICD100 HW6 Prokaryotic Genetics Question 1. You are interested in three genes in bacteriophage. The recessive mutant alleles cause plaque phenotypes that were creatively named fuzzy, shaky, and purple. Another lab published the following map of the three genes: fuzzy shaky 2.9 17.4 purple To verify the published map, you cross a purple shaky phage strain with a fuzzy phage strain by co- infecting E. coli at a high multiplicity of infection (every bacterium infected with both types of phage). You plate the resulting lysate and analyze the phenotypes of the plaques caused by the progeny phage. a. State the genotypes of the two parent phage strains: b. List all eight of the possible phenotypes that could result from this cross. If 400 phage plaques were examined from this cross, how many plaques of each of the eight phenotypic classes would you expect?
- Q11. One of the two genes known to be mutated in cases of Hypokalemic periodic paralysis (which is inherited in an autosomal dominant pattern but known to affect males more often than females) is the calcium voltage-gated channel subunit alpha1 S (CACNA1S). What is known about the gene is recorded here: https://www.ensembl.org/Homo_sapiens/Gene/Summary?db=core;g=ENSG00000081248;r=1:201039512-201112451 Please navigate to the link above and ensure that you click to reveal the transcript table. Then use the information in the table to answer the following question. What is the NCBI accession number (including the version) of the RefSeq Match for the first transcript (CACNA1S-201)? Answer: NCBI accession number (including the version) of the RefSeq Match for the first transcript (CACNA1S-201) is ...52. Papaya plants are very susceptible to the papaya ringspot virus (PRSV), which stunts the growth of the fruit and negatively impacts the taste. By 1995, PRSV wiped out the Hawaiian papaya crop completely and made it impossible to produce papaya commercially. In 1998, Cornell University developed a genetically modified papaya called Rainbow that was resistant to PRSV and introduced it to Hawaii. Currently, 80% of the papaya cultivated in Hawaii is genetically modified to be resistant to PRSV.Which of the following rows identifies the effect of PRSV on the original papaya population and the reason why the population recovered? Select one: a. Effect on the Original Population Reason for Recovery Population bottleneck Some papaya had the PRSV-resistance gene. b. Effect on the Original Population Reason for Recovery Increased gene flow The PRSV-resistance gene had to be artificially introduced to the papaya genome c. Effect on the Original Population Reason…Evidence [see P. G. Shiels, A. J. Kind, K. H. Campbell, et al. (1999),“Analysis of telomere lengths in cloned sheep,” Nature 399, 316–317] suggests that Dolly may have been genetically older than heractual age. As mammals age, the chromosomes in somatic cells tendto shorten from the telomeres. Therefore, older individuals haveshorter chromosomes in their somatic cells than do younger ones.When researchers analyzed the chromosomes in the somatic cells of Dolly when she was about 3 years old, the lengths of her chromosomeswere consistent with those of a sheep that was significantlyolder, say, 9–10 years old. (Note: As described in the chapter, thesheep that donated the somatic cell that produced Dolly was 6 yearsold, and her mammary cells had been grown in culture for severalcell doublings before one of the cells was fused with an oocyte.)A. Suggest an explanation why Dolly’s chromosomes seemedolder than they should have been.B. Let’s suppose that a female sheep (like Dolly), which…
- 12 13 14 Which of the following is true of a somatic mutation? A. They are mutations passed on to offspring. B. They occur less often than germline mutations. C. They are mutations in gametes, germ cells or gametocytes. D. They are mutations in cells other than gametes, germ cells or gametocytes. Which of the following best defines a transgenic organism? An organism that has had a portion of its genome deleted An organism that has had a synthetic gene inserted into its genome An organism that has been cross mated with a different organism An organism that has been modified to carry a gene derived from a different organism A. B. C. D. The disease Malaria is caused by Plasmodium. The main structural features of Plasmodium are show below. Nucleus Plasma Membrane Mitochondria K.Quigley 2021 A. Spores. B. Runners C. Binary fission D. Nuclear fusion Polar Ring -Rhoptries Ribosomes From the diagram, what is the most likely method of reproduction used by this organism in the human body?07:12 1 Which of the following statements correctly describes one characteristic of a multigene family? Select one: O a. 가가 O b. O c. O d. A multigene family includes a highly conserved gene found in a number of different species. A multigene family includes a gene whose exons can be spliced in a number of different ways. A multigene family includes genes whose sequences are very similar and that probably arose by duplication. A multigene family includes multiple genes whose products must be coordinately expressed. ones whese products must be bartleby.com VA+ 70°F, a cell cultue is able to graw and divide farever, but after a new mutation is found in the čeus, and the cells are at 99°F, mey Stop dividing after a few generahons.what * 16 ikery disiupted by the mutation for the cells to stop dividing after a few gener ution when Compared to the 70°F when they diide and qrow indefinitely! grown they aure 95°F grown at
