Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 15, Problem 27CONQ
Describe how the binding of iron regulatory protein to an IRE affects the mRNAs for ferritin and the transferrin receptor. How does iron
influence this process?
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Chapter 15 Solutions
Genetics: Analysis and Principles
Ch. 15.1 - 1. Combinatorial control refers to the phenomenon...Ch. 15.1 - 2. A regulatory transcription factor protein...Ch. 15.1 - 3. A bidirectional enhancer has the following...Ch. 15.1 - 4. Regulatory transcription factors can be...Ch. 15.2 - 1. A chromatin-remodeling complex may
a. change...Ch. 15.2 - Prob. 2COMQCh. 15.2 - 3. Which of the following characteristics is...Ch. 15.2 - 4. Transcriptional activation of eukaryotic genes...Ch. 15.3 - How can methylation affect transcription? a. It...Ch. 15.3 - 2. The process in which completely unmethylated...
Ch. 15.4 - Prob. 1COMQCh. 15.5 - The overall goal of the ENCODE Project is a. to...Ch. 15.6 - The binding of iron regulatory protein (IRP) to...Ch. 15 - Discuss the common points of control in eukaryotic...Ch. 15 - 2. Discuss the structure and function of...Ch. 15 - 3. What is meant by the term transcription factor...Ch. 15 - What are the functions of transcriptional...Ch. 15 - 5. Is each of the following statements true or...Ch. 15 - 6. Transcription factors usually contain one or...Ch. 15 - Prob. 7CONQCh. 15 - Prob. 8CONQCh. 15 - 9. Let’s suppose a mutation in the glucocorticoid...Ch. 15 - Prob. 10CONQCh. 15 - Prob. 11CONQCh. 15 - Prob. 12CONQCh. 15 - 13. Transcription factors such as the...Ch. 15 - An enhancer, located upstream from a gene, has the...Ch. 15 - 15. The DNA-binding domain of each CREB protein...Ch. 15 - The gene that encodes the enzyme called tyrosine...Ch. 15 - Prob. 17CONQCh. 15 - 18. What is a histone variant?
Ch. 15 - Prob. 19CONQCh. 15 - 20. What is meant by the term histone code? With...Ch. 15 - Prob. 21CONQCh. 15 - Histones are thought to be displaced as RNA...Ch. 15 - 23. What is an insulator? Describe two different...Ch. 15 - 24. What is DNA methylation? When we say that DNA...Ch. 15 - Lets suppose that a vertebrate organism carries a...Ch. 15 - 26. What is a CpG island? Where would you expect...Ch. 15 - Describe how the binding of iron regulatory...Ch. 15 - 1. Briefly describe the method of chromatin...Ch. 15 - Researchers can isolate a sample of cells, such as...Ch. 15 - Prob. 3EQCh. 15 - Prob. 4EQCh. 15 - Prob. 5EQCh. 15 - 6. As described in Chapter 21, an electrophoretic...Ch. 15 - Prob. 7EQCh. 15 - 1. Explain how DNA methylation could be used to...Ch. 15 - 2. Enhancers can occur almost anywhere in DNA and...
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- Proteins that are retained in the ER have a KDEL sequence at their C-terminus. To test the idea that KDEL is both necessary and sufficient for retention in the ER, two experiments were performed. First, it was deleted from protein disulfide isomerase (PDI), and this form of PDI got secreted. Second, it was attached to a peptide growth hormone, which is normally secreted from the cell. This modified peptide still got secreted. Which interpretation does this support? The data do not allow for an interpretation, additional experiments are needed. KDEL is sufficient but not necessary for ER retention. KDEL is both necessary and sufficient for ER retention. KDEL is necessary but not sufficient for ER retention.arrow_forwardWhat critical roles does the TFIIH CTD kinase play in regulating the switch from a pre-initiation complex to a post-initiated complex? How does the kinase affect downstream RNA processing?arrow_forwardWhat effect does binding of the IRF protein to the IRE in the mRNA encoding ferritin have on the production of ferritin? Briefly explain why this effect is observed.arrow_forward
- Describe briefly the generation of the active form of the transcription factor NFAT. Include the following terms: Lck. Zap 70, P IP2, IP3, calmodulin, calcineurin (and other relevant ones).arrow_forwardThe binding of a small effector molecule, protein-protein interactions, and covalent modifications are three common ways to modulate the activities of transcription factors. Which of these three mechanisms are used by steroid receptors and by the CREB protein?arrow_forwardOutline one mechanism used by activated mTOR to increase global translation in the cell.arrow_forward
- Describe, in details, how acetylcholine signal molecule can trigger gene transcription via GPCR and adenylyl cyclase.arrow_forwardPhorbol esters have been observed to induce the transcription of AP-1–influenced genes. Explain how this processcould occur. What are the consequences of AP-1 transcription? What role does intermittent exposure to phorbol estershave on an individual’s health?arrow_forwardBriefly name and explain five mechanisms by which transcription factors activate transcription, with specific reference to targets in the basal transcription complexarrow_forward
- Describe the steps that need to occur for the glucocorticoid receptor to bind to a GRE.arrow_forwardConsider the example that actin mRNA localization is important for fibroblast migration. What would you predict to be the consequence of deleting the zip code sequence element of the actin mRNA?arrow_forwardDuring periods of starvation, translation of only vital mRNAs must occur inside a cell. Explain how eIF2 can mediate both the suppression of translation of non-essential mRNAs and ensure that essential mRNAs continues to be translated.arrow_forward
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