MICROBIOLOGY: FUNDAMENTALS CONNECT AC
3rd Edition
ISBN: 9781264669769
Author: Cowan
Publisher: MCG
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Chapter 8, Problem 21Q
Summary Introduction
To determine:
The experiment that could be devised to determine if a particular phage engaged in general or specialized transduction
Introduction:
Horizontal gene transfer is a process through which an organism can incorporate DNA of another organism. It is common in bacteria and viruses and involves three steps: transduction, conjugation, and translation.
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Chapter 8 Solutions
MICROBIOLOGY: FUNDAMENTALS CONNECT AC
Ch. 8.1 - Define the terms genome and gene.Ch. 8.1 - Differentiate between genotype and phenotype.Ch. 8.1 - Draw a segment of DNA, labeling all important...Ch. 8.1 - Summarize the steps of bacterial DNA replication,...Ch. 8.1 - Compare and contrast the synthesis of leading and...Ch. 8.1 - Prob. 1NPCh. 8.2 - Provide an overview of the relationship among DNA,...Ch. 8.2 - Identify important structural and functional...Ch. 8.2 - Draw a picture of the process of transcription.Ch. 8.2 - List the three types of RNA directly involved in...
Ch. 8.2 - Prob. 10AYPCh. 8.2 - Identify the locations of the promoter, the start...Ch. 8.2 - Indicate how eukaryotic transcription and...Ch. 8.2 - NCLEX PREP 2. The following are all true of RNA,...Ch. 8.2 - Prob. 3NPCh. 8.3 - Define the term operon, and explain one advantage...Ch. 8.3 - Prob. 14AYPCh. 8.4 - Prob. 15AYPCh. 8.4 - Prob. 16AYPCh. 8.5 - Prob. 17AYPCh. 8.5 - Differentiate among frameshift, nonsense, silent,...Ch. 8.5 - Prob. 19AYPCh. 8.5 - Prob. 1MMCh. 8.6 - Explain the importance of restriction...Ch. 8.6 - List the steps in the polymerase chain reaction.Ch. 8.6 - Describe how you can clone a gene into a...Ch. 8.6 - Prob. 23AYPCh. 8.6 - Prob. 24AYPCh. 8.6 - Name two genetic techniques that are designed to...Ch. 8.6 - NCLEX PREF 4. A client is being treated with...Ch. 8.6 - Prob. 2MMCh. 8 - Single nucleotide polymorphisms are found in a....Ch. 8 - Using your knowledge of DNA from this chapter,...Ch. 8 - Conduct research on CRISPR and explain in...Ch. 8 - Which of the following is a characteristic of RNA?...Ch. 8 - List some advantages and disadvantages to a cell...Ch. 8 - Construct an argument for why tRNA contains a lot...Ch. 8 - Prob. 7QCh. 8 - Discuss the intersection between the metabolome...Ch. 8 - Defend this statement: All of biology is dependent...Ch. 8 - DNA is semiconservative because the ______ strand...Ch. 8 - Examine the DNA triplets here and determine the...Ch. 8 - Prob. 12QCh. 8 - Prob. 13QCh. 8 - Prob. 14QCh. 8 - Metagenomics is providing insight into the...Ch. 8 - The creation of biological molecules and cells...Ch. 8 - Prob. 17QCh. 8 - Genetically modified organisms (GMOs)especially in...Ch. 8 - Prob. 19QCh. 8 - Construct an analogy using your clothes closet to...Ch. 8 - Prob. 21QCh. 8 - Prob. 1VC
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- What error leads to generalized transduction?arrow_forwardAhmed had isolated bacteria from the sputum of a patient that seemed somewhat resistant to their antibiotic treatment, since multiple weeks of treatment had yielded no satisfactory improvement of their active disease. The researcher had then resuspended the patient's sputum in saline and used a mouse model to measure the efficiency of a phage selected for its capacity to target M. mycobacterium, as a single therapy, and as a combination therapy with antibiotics. Here is a schematic representation of the experiment: Group 1 Control (saline) Inoculate mice with patient sputum Group 2 wait for active disease to show Treated with phage Sputum samples Collect lung sample every 2 weeks Tuberculosis patient Group 3 Treated with Abx Split mice showing active disease in 4 Group 4 Treated with Abx and Count bacteria in sample groups phage Figure 4. Sputum from patients were isolated and resuspended in saline. Mice were given equal amounts of resuspended sputum intra-nasally and were left to…arrow_forwardAhmed had isolated bacteria from the sputum of a patient that seemed somewhat resistant to their antibiotic treatment, since multiple weeks of treatment had yielded no satisfactory improvement of their active disease. The researcher had then resuspended the patient's sputum in saline and used a mouse model to measure the efficiency of a phage selected for its capacity to target M. mycobacterium, as a single therapy, and as a combination therapy with antibiotics. Here is a schematic representation of the experiment: Group 1 Control (saline) Inoculate mice with patient sputum Group 2 wait for active disease to show Treated with phage Sputum samples Collect lung sample every 2 weeks Tuberculosis patient Group 3 Treated with Abx Split mice showing active disease in 4 Group 4 Treated with Abx and Count bacteria in sample groups phage Figure 4. Sputum from patients were isolated and resuspended in saline. Mice were given equal amounts of resuspended sputum intra-nasally and were left to…arrow_forward
- Ahmed had isolated bacteria from the sputum of a patient that seemed somewhat resistant to their antibiotic treatment, since multiple weeks of treatment had yielded no satisfactory improvement of their active disease. The researcher had then resuspended the patient's sputum in saline and used a mouse model to measure the efficiency of a phage selected for its capacity to target M. mycobacterium, as a single therapy, and as a combination therapy with antibiotics. Here is a schematic representation of the experiment: Group 1 Control (saline) Inoculate mice with patient sputum Group 2 wait for active Treated with phage disease to show Collect lung sample every 2 weeks Tuberculosis Sputum samples patient Group 3 Treated with Abx Group 4 Split mice showing active disease in 4 Treated with Abx and Count bacteria in sample groups phage Figure 4. Sputum from patients were isolated and resuspended in saline. Mice were given equal amounts of resuspended sputum intra-nasally and were left to…arrow_forwardThe figure above shows a schematic of genes and transcription control elements from phage λ. Use this figure as an aid to help you describe the molecular events involved in: a) The establishment of lysogeny b) The establishment of a lytic life cyclearrow_forwardWhat is Transduction?arrow_forward
- In Hershey-Chase experiment, bacteriophages protein coats were tagged with radioactive isotope S-32. These phages were used to infect E. coli cells and the cells were further centrifuged to form pellets. Why was the radioactivity level of S-32 found greater outside the cells compared to the E. coli cell pellets? Explain briefly. If the experiment is repeated in the same manner but this time the phage protein coats are labelled with isotope X and the phage DNA with isotope Y, which isotope’s radioactivity will be found in greater amounts in the E. coli cell pellets after centrifugation? Explain briefly.arrow_forwardConsider three genes in E. coli: thr+, ara+, and leu+ (which give the cell the ability to synthesize threonine, arabinose, and leucine, respectively). All three of these genes are close together on the E. coli chromosome. Phages are grown in a thr+ ara+ leu+ strain of bacteria (the donor strain). The phage lysate is collected and used to infect a strain of bacteria that is thr− ara− leu −. The recipient bacteria are then tested on selective medium lacking leucine. Bacteria that grow and form colonies on this medium (leu+ transductants) are then replica-plated on medium lacking threonine and on medium lacking arabinose to see which are thr+ and which are ara+. Another group of the recipient bacteria are tested on medium lackingthreonine. Bacteria that grow and form colonies on this medium (thr+ transductants) are then replica-plated on medium lacking leucine and onto medium lacking arabinose to see which are ara+ and which are leu+. Results from these experiments are as follows:…arrow_forwardHow does specialized transduction differ from generalized transduction?arrow_forward
- What is vector control?arrow_forwardTransduction is sometimes described as a mistake in the bacteriophage reproductive cycle. Explain how it can be viewed as a mistake.arrow_forwardAll of the following apply to Luria and Delbruck’s 1943 study of mutation rates in E. Coli and T1 phage except: A) it served as an example of an inflexible test B) it involved looking for T1-resistant bacteria as an end measure C) it showed that numbers of mutant organisms observed after T 1 phage were added to the culture tended to vary from experiment to experiment D) it rejected the possibility of adaptive mutations E) it supported the concept of spontaneous mutation ratesarrow_forward
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