Genetic Analysis: An Integrated Approach (2nd Edition)
2nd Edition
ISBN: 9780321948908
Author: Mark F. Sanders, John L. Bowman
Publisher: PEARSON
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Chapter 16, Problem 6P
You have cloned the mouse ortholog (see Genetic analysis
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The sequencing of entire genomes has made it possible to examine the level of gene expression in a particular cell or tissue by using oligonucleotide probes to assess the mRNA expression level from a particular gene. This is done most effectively through the use of what experimental technique?
The insertion of transposable elements into genes can alter the normal pattern of expression. In the following situations, describe the possible consequences on gene expression.a. A LINE inserts into an enhancer of a human gene. b. A transposable element contains a binding site for a transcriptional repressor and inserts adjacent to a promoter. c. An Alu element inserts into the 3′ splice (AG) site of an intron in a human gene. d. A Ds element that was inserted into the exon of a maize gene excises imperfectly and leaves three base pairs behind in the exon. e. Another excision by that same Ds element leaves two base pairs behind in the exon. f. A Ds element that was inserted into the middle of an intron excises imperfectly and leaves five base pairs behind in the intron.
Why does the controlling expression in eukaryotes require additional levels of complexity?
Chapter 16 Solutions
Genetic Analysis: An Integrated Approach (2nd Edition)
Ch. 16 - 14.1 What are the advantages and disadvantages of...Ch. 16 - Prob. 2PCh. 16 - 3. Genetic maps and physical maps are both...Ch. 16 - 14.5 What are the advantages and disadvantages of...Ch. 16 - 14.6 You have cloned the mouse ortholog (see...Ch. 16 - 14.13 The CBF genes of Arabidopsis are induced by...Ch. 16 - 14.14 When the S. cerevisiae genome was sequenced,...Ch. 16 - 14.15 Translational fusions between a protein of...Ch. 16 - In enhancer trapping experiments, a minimal...Ch. 16 - 14.19 In Genetic Analysis, we designed a screen to...
Ch. 16 - How would you design a genetic screen to find...Ch. 16 - 14.21 The eyes of Drosophila develop from imaginal...Ch. 16 - 14.22 Given your knowledge of the genetic tools...Ch. 16 - Mutations in the CFTR gene result in cystic...Ch. 16 - Prob. 16PCh. 16 - 14.25 How would you conduct a screen to identify...Ch. 16 - In land plants, there is an alternation of...Ch. 16 - 14.27 The Drosophila evenskipped (eve) gene is...Ch. 16 - Prob. 20PCh. 16 - 14.29 As shown in Figure, mutations in the...
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- name TWO mechanisms of control of gene expression that are only used by eukaryotes and discuss why each of those mechanisms wouldn’t be possible in prokaryotes.arrow_forwardPROTEIN X HAS THE POTENTIAL FOR MEDICAL APPLICATION IN HUMAN. IT IS ORIGINALLY FROM A PLANT AND HAD BEEN SUCCESSFULLY CLONED FROM ITS GENE. AFTER MANY ATTEMPTS TO CLONE IT INTO EUKARYOTIC EXPRESSION VECTORS WERE UNSUCCESSFUL, THE RESEARCHER DECIDED TO USE E.COLI EXPRESSION VECTOR. HOW THE RECOMBINANT PROTEIN COULD BE EXPRESSED IN E.COLI EXPRESSION VECTOR.1. STRATEGIES TO IMPROVE THE PROTEIN EXPRESSION.arrow_forwardA strain of Arabidopsis thaliana possesses a mutation in the APETALA2 gene. As a result of this mutation, much of the 3′ UTR of the mRNA transcribed from the gene is deleted. What is the most likely effect of this mutation on the expression of the APETALA2 gene?arrow_forward
- What analogies can you draw between transcriptionaltrans-acting factors that activate gene expression in eukaryotes and the corresponding factors in bacteria? Givean examplearrow_forwardWhat are the eight ways gene expression can be regulated? Please summarize each in one-two sentences.arrow_forwardGive and briefly explain two examples of how gene expression may be repressed without altering the gene-coding sequence.arrow_forward
- APOE gene has been found to be a major contributor to sporadic Alzheimer's disease (AD), by acting as an age-of-onset modifier for the common relatively late-onset forms of the disease. Among four alleles causing early onset of AD, the epsilon4 allele (APOE4) disrupts this function. If you generate transgenic monkeys in which the normal allele of APOE gene is knocked out, what phenotype will you expect for those knockout monkeys? A. The APE mRNA expression will be completely suppressed. B. They slow down the development of AD. C. They develop AD early. D. They don't show any AD symptom.arrow_forwardA full-length eukaryotic gene is inserted into a bacterial chromosome. The gene contains a complete promoter, a wildtype nucleotide sequence and a polyadenylation sequence. However, the gene does not produce a functional protein. Students may submit their answers as bullet points or a table to facilitate grading. Part A: List up to five reasons why this gene is not expressed in E. coli. Part B: What changes do you recommend that would facilitate expression of the eukaryotic gene in E. coli.arrow_forwardYou are teaching a class on the regulation of eukaryotic gene expression. In order to demonstrate this complex process, you decide to draw for the class a typical eukaryotic gene/transcription unit with its major regions, such as the promoter regions, where the RNA polymerase II and transcription factors would bind From the list given - choose all components that you think are part of a typical eukaryotic gene From the list given - choose all the regulatory sequences that you think would control the expression of this eukaryotic gene From the list given - choose all of the regulatory proteins that would bind the eukaryotic gene to control its expressionarrow_forward
- Name four control points of regulation of eukaryotic gene expression, and where they occur in the cell.arrow_forwardYou are interested in finding out in which organ GTF2H5 is highly expressed experimentally. Describe a method in recombinant DNA technology to measure gene expression, explain your rationale, and step by step, what are needed for this method to workarrow_forwardExplain the several reasons on additional levels of complexity are both possible and necessary for controlling expression in eukaryotes?arrow_forward
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