Brock Biology of Microorganisms (14th Edition)
14th Edition
ISBN: 9780321897398
Author: Michael T. Madigan, John M. Martinko, Kelly S. Bender, Daniel H. Buckley, David A. Stahl, Thomas Brock
Publisher: PEARSON
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Textbook Question
Chapter 11, Problem 2AQ
Suppose you have just determined the DNA base sequence for an especially strong promoter In Escherichia coli and you are Interested in incorporating this sequence into an expression vector. Describe the steps you would use. What precautions are necessary to be sure that this promoter actually works as expected in its new location?
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Chapter 11 Solutions
Brock Biology of Microorganisms (14th Edition)
Ch. 11.1 - Prob. 1MQCh. 11.1 - Prob. 2MQCh. 11.2 - Prob. 1MQCh. 11.2 - Prob. 2MQCh. 11.3 - Why is a primer needed at each end of the DNA...Ch. 11.3 - MINIQUIZ
• From which organisms are thermostable...Ch. 11.3 - How does RT-PCR differ from traditional PCR?Ch. 11.4 - What is the purpose of molecular cloning?Ch. 11.4 - Prob. 2MQCh. 11.4 - Prob. 3MQ
Ch. 11.5 - Prob. 1MQCh. 11.5 - How can site-directed mutagenesis be useful to...Ch. 11.5 - What are knockout mutations?Ch. 11.6 - Prob. 1MQCh. 11.6 - Prob. 2MQCh. 11.7 - Prob. 1MQCh. 11.7 - Prob. 2MQCh. 11.7 - Prob. 3MQCh. 11.8 - Prob. 1MQCh. 11.8 - Prob. 2MQCh. 11.9 - MINIQUIZ
• Describe the components needed for an...Ch. 11.9 - Prob. 2MQCh. 11.10 - Prob. 1MQCh. 11.10 - Prob. 2MQCh. 11.10 - Prob. 3MQCh. 11.11 - What major advantage does cloning mammalian genes...Ch. 11.11 - Prob. 2MQCh. 11.12 - Prob. 1MQCh. 11.12 - Prob. 2MQCh. 11.12 - Prob. 3MQCh. 11.13 - Prob. 1MQCh. 11.13 - Give an example of a genetically modified plant...Ch. 11.13 - How have transgenic salmon been engineered to...Ch. 11.14 - Explain why recombinant vaccines might be safer...Ch. 11.14 - Prob. 2MQCh. 11.15 - Explain why metagenomic cloning gives large...Ch. 11.15 - Prob. 2MQCh. 11.16 - Prob. 1MQCh. 11.16 - Prob. 2MQCh. 11.17 - What are biobricks?Ch. 11.17 - How was Escherichia coli modified to produce a...Ch. 11 - Prob. 1RQCh. 11 - Prob. 2RQCh. 11 - Describe the basic principles of gene...Ch. 11 - Prob. 4RQCh. 11 - Prob. 5RQCh. 11 - Prob. 6RQCh. 11 - Prob. 7RQCh. 11 - REVIEW QUESTIONS
8. What is a reporter gene?...Ch. 11 - Prob. 9RQCh. 11 - Prob. 10RQCh. 11 - Prob. 11RQCh. 11 - Prob. 12RQCh. 11 - Prob. 13RQCh. 11 - Prob. 14RQCh. 11 - Prob. 15RQCh. 11 - Prob. 16RQCh. 11 - Prob. 17RQCh. 11 - What is the Ti plasmid and how has it been of use...Ch. 11 - What is a subunit vaccine and why are subunit...Ch. 11 - How has metagenomics been used to find novel...Ch. 11 - Prob. 21RQCh. 11 - Prob. 22RQCh. 11 - Prob. 1AQCh. 11 - Suppose you have just determined the DNA base...Ch. 11 - Prob. 3AQCh. 11 - Prob. 4AQ
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- The following diagram represents one of the Christmas-tree-like structures shown in Figure On the diagram, identify parts a through i. Q. Approximate location of the promoterarrow_forwardIn bacteria, genes that are often used together are controlled by a single promoter. Explain why this is the case.arrow_forwardHow to incorporate prokaryotic gene into eukaryotic cell to make an transgenic organism?In this case what promoter will be used.explain the process in detailsarrow_forward
- Suppose you had isolated a new transcription factor and wanted to know which genes this protein might regulate. Is there any way that you could use a cDNA microarray of the type shown in the picture to approach this question?arrow_forwardA graduate student studying the pathogenic bacteria Acinetobacter baumannii made cDNA from planktonic cells and biofilm cells and performed RNA-Seq on both samples. She aligned her sequencing reads to a locus of the baumannii genome as shown. a. Which genes are on an operon together? Explain which data supports this? b. What is the most expressed transcript from the locus in Planktonic culture? c. Order the transcripts from largest increase in relative expression between biofilm and planktonic cells to the largest decrease in relative expression. d. When this data was compared to microarray transcriptional profiling, the microarray data provided lower expression levels for the most highly expressed transcripts. Why did this occur?arrow_forwardHow can the bacteriophage T7 promoter be used to controlexpression of a eukaryotic gene in Escherichia coli?arrow_forward
- Some vectors used in cloning experiments contain bacterial promotersthat are adjacent to unique cloning sites. This makes it possible to insert a gene sequence next to the bacterial promoter and express the gene in bacterial cells. These vectors are called expression vectors. If you wanted to express a eukaryotic protein in bacterial cells, would you clone genomic DNA or cDNA into the expression vector? Explain your choice.arrow_forwardYou then make a screen to identify potential mutants (shown as * in the diagram) that are able to constitutively activate Up Late operon in the absence of Red Bull and those that are not able to facilitate E. Coli growth even when fed Red Bull. You find that each class of mutations localize separately to two separate regions. For those mutations that prevent growth even when fed Red Bull are all clustered upstream of the core promoter around -50 bp. For those mutations that are able to constitutively activate the operon in the absence of Red Bull are all located between the coding region of sleep and wings. Further analysis of each DNA sequence shows that the sequence upstream of the promoter binds the protein wings and the region between the coding sequence of sleep and wings binds the protein sleep. When the DNA sequence of each is mutated, the ability to bind DNA is lost. Propose a final method of gene regulation of the Up Lateoperon using an updated drawn figure of the Up Late…arrow_forwardPlease indicate whether the following statement is true or false In eukaryotes, promoter escape involves dephosphorylation of RNA polymerase II enzymearrow_forward
- In the bacteriophage T7 system used to express recombinant proteins, the gene of interest is fused to T7 promoter and T7 RNA polymerase is separately cloned into the same cell. What is the main reason this system uses T7 RNA polymerase instead of relying on the bacterial RNA polymerase? To restrict the expression of bacterial protein expression To enhance the amount of recombinant protein expression To enhance the expression of bacterial protein expression To restrict the amount of recombinant protein expression To enable the expression of T7 viral protein expressionarrow_forwardDescribe the process of cloning a DNA fragment into theBamHI and PstI sites of the vector pUC18. How would youscreen for clones that contain an insert? and explain the process(steps) by drawingarrow_forwardWhat is the difference between a promoter proximal element and a distal enhancer? What are the similarities?arrow_forward
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