True of False Each answer must be justified with a short explanation A. The phenotype of a bacteria can change without changing its genotype. B. In bacteria, only one replisome is present. C. All 3 horizontal gene transfer mechanisms discussed in class are common for both Gram- positive and Gram-negative cells.
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Q: Define horizontal gene transfer in bacteria and explain 3 mechanisms by which this can take place in…
A: A horizontal gene transfer is a process of transferring genetic material between two unrelated…
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A: Antibiotic is used against the bacterial infection, and to suppresses the growth of the bacterial…
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Q: All 3 horizontal gene transfer mechanisms are common for both Gram-positive and Gram-negative…
A: Horizontal gene transfer (HGT) or lateral gene transfer (LGT) is the movement of genetic material…
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A: Based on the cellular composition of an organism it is divided into 3 domains of life.
Q: Which of the following is an example of horizontal gene transfer? a. the transmission of an eye…
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Q: n Hershey and Chase’s experiment investigating which biological molecule carries genetic…
A: Hershey and Chase studied cells of the intestinal bacteria ie E.coli after injection by virus T2.
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A: All of these are likely to be the genetic material for the primitive life form.
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A: The transformation experiment can we perform for the determination of gene order. During…
Q: In Griffith's experiment shown above, a sample containing the remains of dead virulent bacteria was…
A: As per out honor code, we are allowed to answer only one question at a time. You have posted…
Q: Which genetic material could be transmitted naturally by all threemethods of intermicrobial…
A: The three methods of intermicrobial transfer are conjugation, transformation, and transduction. In…
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A: Bacteria are able to multiply quickly and also in vast numbers. One cell of bacteria split into two…
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A: Correct answer: Option 3: Transduction
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A:
Q: What is the difference in peptidoglycans in gram negative vs gram positive cells/ B. Why does Gram…
A: The bacterial cells are surrounded by a cell envelope that is a multilayered structure. The major…
Q: . In two isolates (one is resistant to ampicillin and theother is sensitive to ampicillin) of a new…
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Q: cterium of genotype a+b+c+ is the donor in a cotransformation mapping experiment. The recipient is…
A: Cotransformation is transformation of 2 or more genes simultaneously. However, the genes in in the…
Q: n 1928, Sir Alexander Fleming was studying Staphylococcus bacteria growing in culture dishes. He…
A: Antibiotics are drugs that fight infections caused by bacteria. They do not work against infections…
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A: DNA-DNA hybridization technique: it is used to determine the sequence similarities between one known…
Q: Which of the following is an example of horizontal genetransfer?a. The transfer of a gene from one…
A: The exchange of hereditary information among contemporary organisms is called horizontal gene…
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Q: Why are there so many serotypes of the same bacterial parent strain? O Mutability O Genetics All…
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Q: The difference between transformation and conjugation in bacteria consists of the fact that: a.…
A: explanation - both b and c are correct . The difference between transformation and conjugation in…
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Q: Bacteria evolve rapidly due to horizontal transfer ofgenes, including packets of genes called…
A: Horizontal gene transfer is method of transfer of genetic material between two bacteria of same…
Q: All of these are example of the horizontal gene transfer EXCEPT: transduction transferring genes via…
A: A Coding Sequence (CDS) is DNA or RNA sequence that codes for amino acids during translation. It…
Q: A bacterium of genotype a+b+c+d+ is the donor in a cotransformation mapping. The recipient is…
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- 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 3) What are the benefits (or potential benefits) of the engineered bacterium? 4) What are the risks (or potential risks) of the engineered bacterium?link: https://www.aaas.org/news/science-newly-identified-bacteria-break-down-tough-plastic How is the new PETase (2018) different from the 2016 version in function?a. Briefly discuss (using three sentences) how the concepts and/or techniques in molecular biology are applied in COVID-19 pandemic, and: b. For each topic (Covid-19 pandemic), give any issues, benefits, or drawbacks of the application (still using three sentences).
- Results from a Kirby Bauer antibiotic assay on a Gram-negative bacterial culture are described as follows: A) the bacterium is resistant to penicillin, an antibiotic that targets synthesis of the peptidoglycan cell wall and B) the bacterium is resistant to tetracycline, an antibiotic that targets the small subunit of the ribosome, inhibiting protein synthesis. Which of the results represents intrinsic resistant and which represents acquired resistants?a. Which wells do contain more cell number when compared to other wells in cell viability with resazurin assay?b. Calculate cell viability percentage. 570nM Sample 1 Sample 2 Sample 3 Sample 4 control 0,154 0,157 0,155 0,154 1/1000 0,15 0,149 0,151 0,148 1/100 0,113 0,115 0,116 0,114 1/75 0,052 0,05 0,052 0,051 1/50 0,03 0,031 0,029 0,032 1/25 0,019 0,018 0,021 0,0191. Propose a way that a chi square analysis could be used in other experiments, such as genetics ordrug trials.
- Elaborate the essential differences between Molecular beam epitaxy and AACVDA. What are the 4 “Koch’s Postulates”? B. Are they still valid today? How would we use them to establish the relationship between a specific microbe and a disease? Can we substitute such things as finding antibodies or DNA traces for some steps? If so, why? C. How has microbiology contributed to the advancement in molecular biology?Describe how, using mice, a researcher could carry out (1) organismalcloning, (2) production of ES cells, and (3) generation of iPS cells,focusing on how the cells are reprogrammed. (The procedures arebasically the same in humans and mice.)
- PART C (cont'd) Which of the following steps (on this page and the next page) would be necessary to determine the most effective antibiotic for a bacterial infection using the Disk Diffusion Assay? Select three necessary steps and three unnecessary or incorrect steps, and explain why it is or is not necessarv/correct. Collect a sample of bacteria from the infected patient. Collect samples of bacteria from the bathroom taps in the patient's room. Collect samples of bacteria from other patients who seem to have the same infection. Soak disks in many different types of antibiotic. Soak disks in the antibiotic you have the biggest supply ot. Label the disks with the type of antibiotic you soaked them in.PART C (cont'd) Which of the following steps (on this page and the next page) would be necessary to determine the most effective antibiotic for a bacterial infection using the Disk Diffusion Assay? Select three necessary steps and three unnecessary or incorrect steps, and explain why it is or is not necessarv/correct. Collect a sample of bacteria from the infected patient. Collect samples of bacteria from the bathroom taps in the patient's room. Collect samples of bacteria from other patients who seem to have the same infection. Soak disks in many different types of antibiotic. Soak disks in the antibiotic you have the biggest supply ot. Label the disks with the type of antibiotic you soaked them in. • Leave the petri dishes uncovered while the bacteria grow. , cover the petri dishes while the bacteria grow. Treat the bacterial culture with a disinfectant before spreading on the agar plate Wear personal protective equipment (gloves, mask, lab coat) while performing the procedure Wear…Briefly explain the principle behind flow cytometry What is/are purpose of flow cytometry?