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 17, Problem 14CONQ
Outline the steps that occur when piRISCs silence transposable elements by repressing transcription and by directly inhibiting TE RNAs. What is the role of piRNAs in this process?
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Outline the two ways that piRNAs and PIWI proteins inhibit transposable elements.
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Chapter 17 Solutions
Genetics: Analysis and Principles
Ch. 17.1 - Which of the following can bind to ncRNAs? a. DNA...Ch. 17.1 - 2. When an ncRNA functions as a decoy, it
a....Ch. 17.1 - Prob. 3COMQCh. 17.2 - 1. Which of the following functions does HOTAIR...Ch. 17.3 - 1. The process of RNA interference may lead to
a....Ch. 17.3 - 2. In catalyzing the methylation or...Ch. 17.4 - 1. Which of the following is a function of SRP?...Ch. 17.5 - 1. Which of the following components are needed...Ch. 17.5 - 2. In the CRISPR-Cas system, what does the...Ch. 17.5 - Which of the following is a function of the...
Ch. 17.6 - Prob. 1COMQCh. 17.6 - Let's suppose that the overexpression of a...Ch. 17 - 1. List and briefly describe four types of...Ch. 17 - 2. An ncRNA may have the following functions:...Ch. 17 - 3. What is meant by the term RNA world? Describe...Ch. 17 - Explain how HOTAIR plays a role in the...Ch. 17 - What is the phenomenon of RNA interference (RNAi)?...Ch. 17 - With regard to RNAi, what are three possible...Ch. 17 - 7. What is the difference between an miRNA and an...Ch. 17 - Together with a specific set of proteins, snoRNAs...Ch. 17 - Describe the structure of SRP in eukaryotes, and...Ch. 17 - Look at Figure 17.6 and predict what would happen...Ch. 17 - Compare and contrast the roles of crRNA and...Ch. 17 - In the CRISPR-Cas system, does the tracrRNA act as...Ch. 17 - Prob. 13CONQCh. 17 - Outline the steps that occur when piRISCs silence...Ch. 17 - List five types of cancer in which ncRNAs can be...Ch. 17 - Prob. 16CONQCh. 17 - A protein called trypsin, which plays a role in...Ch. 17 - Prob. 2EQCh. 17 - Prob. 3EQCh. 17 - As described in Chapter 21, the CRISPR-Cas system...Ch. 17 - Prob. 5EQCh. 17 - Prob. 6EQCh. 17 - Prob. 1QSDCCh. 17 - Go to the PubMed website and do a search using the...
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- What structural features does the trp operon share with the lac operon?arrow_forwardExplain one experimental strategy for determining the functional role of the mouse HoxD-3 gene.arrow_forwardIf all members of a transposable element family can besilenced by dsRNA synthesized from a single familymember, how is it possible for one element family (likeTc1) to have 32 copies in the C. elegans genome whileanother family (Tc2) has fewer than 5 copies?arrow_forward
- How do the ENCODE data vastly help determine which enhancers regulate which genes?arrow_forwardMechanistic analysis of silencing mechanisms showed that exogenous double-stranded RNA was processed into short fragments (short interfering RNAs or siRNAs) with a similar size to miRNAs. How do mRNAs represent a similar endogenous system to transgene silencing?arrow_forwardExplain why RNAi would be a less effi cient mechanism for regulating the expression of specifi c genes if Dicer hydrolyzed double-stranded RNA every 11 bp rather than every 22 bp.arrow_forward
- Identify three key ways that TrXG genes promote transcription with respect to: Mediator Complex Structurearrow_forwardDescribe a ChIP-Seq experiment that will enable the identification of promoters to which the stationary phase sigma factor RpoS binds in E. coli. How could you also determine when RpoS binds to DNA?arrow_forwardPlease describe the regulatory role of enhancers that binds to responsible regulators to activate the target gene at a given time and place through comparing different organisms according to the presence of regulatory sequencesarrow_forward
- Please compare the effect of an active enhancer at the level of RNA transcription with the effect of an active enhancer at the level of RNA splicingarrow_forwardDiscuss the ways in which RNA pol II contributes to the transcription and regulation of eukaryotic genes.arrow_forward“How will raising the temperature affect the transcription regulation of RodA? and what is the importance of performing this lab?arrow_forward
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