Campbell Biology (11th Edition)
11th Edition
ISBN: 9780134093413
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 18.1, Problem 1CC
How does binding of the trp corepressor to the trp repressor alter repressor function and transcription? What about the binding of the lac inducer to the lac repressor?
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How are the actions of lac repressor and trp repressor similar and how are they different with regard to their binding to operator sites, their effects on transcription, and the influences of small effector molecules?
How does the binding of the trp corepressor and the lac inducer to their respective repressor proteins alter repressor function and transcription in each case?
What if there was a mutation in the operator region of the lac operon and the active repressor could not bind there? How would this affect the cell’s production of β–galactosidase?
In general, Histone acetylation makes DNA ___________________, while DNA methylation makes DNA ________________.
How could the expression of Lactase RNA be turned on and off by transcription factors, activators, and repressors?
Chapter 18 Solutions
Campbell Biology (11th Edition)
Ch. 18.1 - How does binding of the trp corepressor to the trp...Ch. 18.1 - Describe the binding of RNA Polymerase,...Ch. 18.1 - WHAT IF? A certain mutation in E. coli changes...Ch. 18.2 - In general, what are the effects of histone...Ch. 18.2 - MAKE CONNECTIONS Speculate about whether the same...Ch. 18.2 - Compare the roles of general and specific...Ch. 18.2 - Once mRNA encoding a particular protein reaches...Ch. 18.2 - WHAT IF? Suppose you compared the nucleotide...Ch. 18.3 - Compare miRNAs and siRNAs, including their...Ch. 18.3 - WH AT IF? Suppose the mRNA being degraded in...
Ch. 18.3 - MAKE CONNECTIONS Inactivation of one of the X...Ch. 18.4 - MAKE CONNECTIONS As you learned in Chapter 12,...Ch. 18.4 - MAKE CONNECTIONS Explain how the signaling...Ch. 18.4 - How do fruit fly maternal effect genes determine...Ch. 18.4 - Prob. 4CCCh. 18.5 - Prob. 1CCCh. 18.5 - Under what circumstances is cancer considered to...Ch. 18.5 - MAKE CONNECTIONS The p53 protein can activate...Ch. 18 - Compare and contrast the roles of a corepressor...Ch. 18 - Describe what must happen in a cell for a gene...Ch. 18 - Why are miRNAs called noncoding RNAs? Explsin how...Ch. 18 - Describe the two main processes that cause...Ch. 18 - Compare the usual functions of proteins encoded by...Ch. 18 - If a particular operon encodes enzymes for making...Ch. 18 - Muscle cells differ from nerve cells mainly...Ch. 18 - The functioning of enhancers is an example of (A)...Ch. 18 - Cell differentiation always involves (A)...Ch. 18 - Which of the following is an example of...Ch. 18 - What would occur if the repressor of an inducible...Ch. 18 - Absence of bicoid in mRNA from a Drosophila egg...Ch. 18 - Which of the following statements about the DNA in...Ch. 18 - Within a cell, the amount of protein made using a...Ch. 18 - Prob. 10TYUCh. 18 - draw it The diagram below shows five genes,...Ch. 18 - Prob. 12TYUCh. 18 - Prob. 13TYUCh. 18 - SCIENCE. TECHNOLOGY, AND SOCIETY Trace amounts of...Ch. 18 - WRITE ABOUT A THEME: INTERACTIONS In a Short essay...Ch. 18 - SYNTHESIZE YOUR KNOWLEDGE The flashlight fish has...
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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
- What is the difference between a general transcription factor (like sigma 70) and a regulatory transcription factor (like lac repressor)? Compare and contrast their roles in regulating RNA polymerase and in regulating transcription.arrow_forwardHow are the lac and lambda repressors similar? How are the lac and lambda repressors different?arrow_forwardIf a repressor prevents TFIID from binding to the TATA box, why does this inhibit transcription?arrow_forward
- how does phosphorylation of eukaryotic transcription factors regulate the function, using two types of regulatory effects of phosphorylation on named transcription factorsarrow_forwardWhat is the function of the repressor encoded by the lacI gene?arrow_forwardWhy does histone deacetylase action tend to repress transcription?arrow_forward
- How would a mutation which prevented Gal3 from binding to Gal80 affect gene expression from the GAL promoter?arrow_forwardWhat are general transcription factors? When do you expect to find them? What is a cis acting regulatory sequence? Where are they located in comparison with the gene they are regulating?arrow_forwardWhat is control of gene expression by RNA leader-mediated premature termination of transcription?arrow_forward
- What is the relationship between promoters, regulatory DNA sequences, and transcription regulators? How are they used to control gene expression?arrow_forwardFor eukaryotes, how do mediators, gene-specific transcription factors (activators/repressors), general transcription factors, and RNA polymerase interact? How do they initiate transcription?arrow_forward
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