Genetic Analysis: An Integrated Approach (2nd Edition)
2nd Edition
ISBN: 9780321948908
Author: Mark F. Sanders, John L. Bowman
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 14, Problem 3P
Why is it essential that bacterial cells be able to regulate the expression of their genes? What are the energetic and evolutionary advantages of regulated gene expression? Is the expression of all bacterial genes subject to regulated expression? Compare and contrast the difference between regulated gene expression and constitutive gene expression.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Which of the following is NOT a reason cells regulate gene expression at a level other than the transcriptional level?
Some proteins are only required in part of the cell and transcriptional control will only regulate the mRNA/protein throughout the cell.
The core promoter for many genes is the same, so these genes will always be transcribed in the same cells. Differential gene expression in different cell types requires
regulation of gene expression at levels other than transcription.
Transcription and translation are realtively slow processes, so cells need to regulate gene expression post-transcriptionally if they require a fast change in expression
of a gene.
Not all cells are transcriptionally active (meaning they do not transcribe any genes), so these cells need to regulate gene expression post-transcriptionally.
A) List the steps for gene expression in prokaryotes and eukaryotes. B) Relate the differences in gene expression between prokaryotes and eukaryotes in gene expression regulation and explain what causes those differences.
The most common type of regulation of gene expression occurs at the level of transcription. Name other types of gene regulation for gene expression in eukaryotic cells. Name types of gene regulation unique to eukaryotic cells versus prokaryotic cells.
Chapter 14 Solutions
Genetic Analysis: An Integrated Approach (2nd Edition)
Ch. 14 - 12.1 Bacterial genomes frequently contain groups...Ch. 14 - Transcriptional regulation of operon gene...Ch. 14 - Why is it essential that bacterial cells be able...Ch. 14 - Identify similarities and differences between an...Ch. 14 - The transcription of -galactosidase and permease...Ch. 14 - 12.6 Is attenuation the product of an allosteric...Ch. 14 - The trpL region contains four repeated DNA...Ch. 14 - The CAP binding site in the lac promoter is the...Ch. 14 - What role does cAMP play in transcription of lac...Ch. 14 - How would a cap- mutation that produces an...
Ch. 14 - Explain the circumstances under which attenuation...Ch. 14 - Consider the transcription of genes of the...Ch. 14 - Describe the lytic and lysogenic life cycles of ...Ch. 14 - 12.14 Define antisense RNA, and describe how it...Ch. 14 - 12.15 Attenuation of trp operon transcription is...Ch. 14 - 12.16 In the lac operon, what are the likely...Ch. 14 - Identify which of the following lac operon haploid...Ch. 14 - Prob. 18PCh. 14 - 12.19 List possible genotypes for lac operon...Ch. 14 - Suppose each of the genotypes you listed in parts...Ch. 14 - 12.21 Four independent mutants (mutants A to D)...Ch. 14 - Suppose the lac operon partial diploid...Ch. 14 - Prob. 23PCh. 14 - 12.24 A repressible operon system, like the trp...Ch. 14 - 12.25 What is the likely effect of each of the...Ch. 14 - 12.26 Suppose that base substitution mutations...Ch. 14 - 12.27 Two different mutations affect. Mutant...Ch. 14 - How would mutations that inactivate each of the...Ch. 14 - The bacterial insertion sequence IS 10 uses...Ch. 14 - 12.34 Northern blot analysis is performed on...Ch. 14 - 12.37 The electrophoresis gel shown in part (a) is...Ch. 14 - Prob. 32PCh. 14 - The following hypothetical genotypes have genes A,...Ch. 14 - For an E. coli strain with the lac operongenotype...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Compare the control of gene regulation in eukaryotes and prokaryotes at the level of initiation of transcription. How do the regulatory mechanisms work? What are the similarities and differences in these two types of organisms in terms of the specific components of the regulatory mechanisms? Address how the differences or similarities relate to the biological context of the control of gene expression.arrow_forwardDescribe and give an example of each of the following levels of gene expression control in eukaryotes: a) epigenetic control b) transcriptional control c) post-transcriptional control d) translational control e) post-translational controlarrow_forwardIS. Alternative splicing has been estimated to occur in more than 95% of multi-exon genes. Which of the following is not an evolutionary advantage of alternative splicing? Alternative splicing increases diversity without increasing genome size Different gene isoforms can be expressed in different tissues Alternative splicing creates shorter mRNA transcripts Different gene isoforms can be expressed during different stages of development.arrow_forward
- Create a Venn diagram to compare and contrast the process of gene expression in Bacteria versus eukaryotes. Remember that “gene expression” can include any part of transcription or translation. Try to be as thorough as you can about what aspects of this process are similar between the two taxa, and what characteristics are distinct to only Bacteria or eukaryotes. Plase include a minimum of 15 items in the Venn diagram.arrow_forwardTranscriptional repressor proteins (e.g., lac repressor), antisense RNA, and feedback inhibition are three different mechanisms that turn off the expression of genes and gene products. Which of these three mechanisms will be most effective in each of the following situations? A. Shutting down the synthesis of a polypeptide B. Shutting down the synthesis of mRNA C. Shutting off the function of a protein For your answers to parts A–C that list more than one mechanism, which mechanism will be the fastest or the most efficient?arrow_forwardWe know that eukaryote gene regulation can occur at any point in the process of gene expression. (a) What is the final step where gene expression control may occur in the process of protein expression ? (b) Is this a cellular energy efficient or inefficient mechanism of gene regulation? Explain.arrow_forward
- Discuss the following argument: “if the expression of every gene depends on a set of transcription regulators, then the expression of these regulators must also depend on the expression of other regulators, and their expression must depend on the expression of still other regulators, and so on. cells would therefore need an infinite number of genes, most of which would code for transcription regulators.” how does the cell get by without having to achieve the impossible?arrow_forwardEukaryotes have a multitude of ways of regulating gene expression. Why are all these regulatory mechanisms necessary to the functioning of a eukaryotic organism?arrow_forwardProvide a detailed description of gene expression and control in prokaryotes. Provide a detailed description of proteins critical for this process. (please hand draw a figure showing gene expression and control in prokaryotes and the proteins involved)arrow_forward
- Two component systems are common in bacteria to regulate the expression of specific genes in response to environmental signals. Which of the following can be said of two component systems?arrow_forwardGenetic expression in general can be regulated at various stages. Identify specific processes that control gene expression at the: a. transcription level - b. post-transcription level - c. translation level -arrow_forwardYou are interested in studying a novel gene that appears to be involved in cancer. There is no information about the function of this gene. What would you do to obtain the cDNA for this gene? How would you express this gene and what expression systems might you utilize to study its function and why? How would determine the subcellular localization of this gene in eukaryotic cells? What are alternative methods in case one doesn't work? How would you purify and determine the 3-dimensional structure of this protein?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Bacterial Genomics and Metagenomics; Author: Quadram Institute;https://www.youtube.com/watch?v=_6IdVTAFXoU;License: Standard youtube license