Genetic Analysis: An Integrated Approach (3rd Edition)
3rd Edition
ISBN: 9780134605173
Author: Mark F. Sanders, John L. Bowman
Publisher: PEARSON
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Chapter 8, Problem 10P
What is the role of enhancer sequences in transcription of eukaryotic genes? Speculate about why enhancers are not part of transcription of bacterial genes.
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Describe events associated with the process of transcription in eukaryotic cells. How is the process different in prokaryotic cells?
Describe the function of eukaryotic enhancers in transcription.
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.
Chapter 8 Solutions
Genetic Analysis: An Integrated Approach (3rd Edition)
Ch. 8 - Prob. 1PCh. 8 - 8.2 In one to two sentences each, describe the...Ch. 8 - 8.3 Answer these questions concerning...Ch. 8 - 8.4 The diagram below shows a DNA duplex. The...Ch. 8 - The following is a portion of an mRNA sequence:...Ch. 8 - Compare and contrast the properties of DNA...Ch. 8 - The DNA sequences shown below are from the...Ch. 8 - Bacterial and eukaryotic gene transcripts can...Ch. 8 - Describe the two types of transcription...Ch. 8 - What is the role of enhancer sequences in...
Ch. 8 - Prob. 11PCh. 8 - Draw a bacterial promoter and label its consensus...Ch. 8 - For a eukaryotic gene whose transcription require...Ch. 8 - Three genes identified in the diagram as A, B and...Ch. 8 - Prob. 15PCh. 8 - 8.16 The segment of the bacterial gene involved in...Ch. 8 - Prob. 17PCh. 8 - Prob. 18PCh. 8 - 8.19 A DNA fragment from the end of the mouse...Ch. 8 - 8.20 Wild-type E. coli grow best at but can grow...Ch. 8 - A mutant strain of Salmonella bacteria carries a...Ch. 8 - 8.22 The human wild-type allele and a certain...Ch. 8 - Prob. 23PCh. 8 - A full-length eukaryotic gene is inserted into a...Ch. 8 - The accompanying illustration shows a portion of a...Ch. 8 - DNA footprint protection (described in Research...Ch. 8 - Suppose you have a 1-kb segment of cloned DNA that...Ch. 8 - Assume that a mutation affects the gene for each...Ch. 8 - 8.29 The DNA sequence below gives the first base...Ch. 8 - 8.30 Genomic DNA from a mouse is isolated,...Ch. 8 - 8.31 A portion of a human gene is isolated from...
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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
- IS. 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_forwardSome compounds called antiinducers bind to repressors such as the lac repressor and inhibit the action of inducers; that is, transcription is repressed and higher concentrations of inducer are required to induce transcription. Propose a mechanism of action for anti-inducers.arrow_forwardDiscuss the roles of histones in eukaryotic transcription. How might histones inhibit transcription, and how are histones modified or moved to allow transcription to occur?arrow_forward
- What is meant by the term transcription factor modulation? List three general ways this can occur.arrow_forwardAssume that this DNA molecule is from a bacterial cell. Draw the approximate locations of the promoter and terminator for this transcription unit.arrow_forwardExplain the fundamental differences between negative control and positive control of transcription in prokaryotes. Cite two examples of each control mechanism.arrow_forward
- Compare the control of gene regulation in eukaryotes and bacteria 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?arrow_forwardWhat role does an operator sequence serve in bacterial gene expression regulation? Describe one change in bacterial cells that can cause a repressor protein to go from inactive to active or from active to inactive.arrow_forwardConsider this list (below) of steps involved in transcription. These steps are out of order. TRANSCRIPTION: 1. mRNA travels through a nuclear pore and enters the cytoplasm 2. the mRNA polymerase attaches at the start of a specific gene 3. RNA polymerase reads the gene surface4. a transcription factor bonds to a promoter site5. DNA molecule is unwound 6. a complimentary mRNA is produced What is the correct order of this transcription?arrow_forward
- In 3-4 sentences eachExplain the difference between prokaryotic and eukaryotic transcription. Explain the difference between an activator and a repressor? Explain the difference between a promoter and an enhancer? Explain the difference between an intron and an exon? Explain what happens when eIF-2 is phosphorylated and when it is not phosphorylated?arrow_forwardIn general, why is it important to regulate genes? Discuss examples of situations in which it would be advantageous for a bacterial cell to regulate genes.arrow_forwardSpeculate as to why eukaryotes have either a) much more complex promoter and enhancer regions than prokaryotes or b) intron exon structure while prokaryotes do not.arrow_forward
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