Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 16, Problem 7TYK
Summary Introduction
Introduction:
Gene expression is the process that involves synthesis of protein from the
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miRNA molecules act as specificity factors, which direct effector proteins to target ______ molecules via base-pairing.
A. RNA
B. Carbohydrate
C. Lipid
D. DNA
E. Protein
In RNA silencing, siRNAs and miRNAs usually bind to which part of the mRNA molecules that they control?
a. 5′ UTR
b. Coding region
c. 3′ poly(A) tail
d. 3′ UTR
Which of the following is an intron and intergenic coded long transcripts, processed into stem and loop structures that may bind specifically or otherwise?
a. spliceosome RNA
b. LncRNA
c. miRNA
d. piRNA
e. siRNA
Chapter 16 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 16.1 - Suppose the lacl gene is mutated so that the Lac...Ch. 16.1 - Answer the equivalent question for the trp operon:...Ch. 16.2 - What is the role of histones in gene expression?...Ch. 16.2 - Prob. 2SBCh. 16.3 - Prob. 1SBCh. 16.3 - Prob. 2SBCh. 16.4 - Prob. 1SBCh. 16.4 - Prob. 2SBCh. 16.5 - Prob. 1SBCh. 16.5 - Prob. 2SB
Ch. 16.5 - Prob. 3SBCh. 16.5 - Prob. 4SBCh. 16 - Prob. 1TYKCh. 16 - For the E. coli lac operon, when lactose is...Ch. 16 - Prob. 3TYKCh. 16 - Prob. 4TYKCh. 16 - Prob. 5TYKCh. 16 - Prob. 6TYKCh. 16 - Prob. 7TYKCh. 16 - Prob. 8TYKCh. 16 - Prob. 9TYKCh. 16 - Prob. 10TYKCh. 16 - Discuss Concepts In a mutant strain of E. coli,...Ch. 16 - Prob. 12TYKCh. 16 - Prob. 13TYKCh. 16 - Prob. 14TYKCh. 16 - Design an experiment using rats as the model...Ch. 16 - Prob. 1ITDCh. 16 - Prob. 2ITDCh. 16 - Prob. 3ITDCh. 16 - Prob. 4ITD
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- Let’s suppose that the overexpression of a particular miRNA was associatedwith pancreatic cancer. Which of the following agents might be effective in treating this type of cancer?a. Enoxacinb. A DNA demethylating agentc. An anti-miRNA oligonucleotided. Both a and barrow_forwardWhich of the following is NOT true of miRNAs? A. Pri-miRNAs are processed by Drosha in the nucleus to form pre-miRNAs which are cleaved by dicer in the cytoplasm to generate a miRNA. B. miRNAs always lead to the degradation of their mRNA targets. C. miRNAs can be encoded within the vertebrate genome within introns and within intergenic regions. D. miRNAs can generally target more than one mRNAarrow_forwardDefine the following terms: a. noncoding RNA b. miRNA c. siRNA d. snoRNA e. lncRNAarrow_forward
- Changes in a cell that affect micro RNAs lead to cancer because miRNAs... a. help a cell to maintain a tight control on protein levels in a cell. b. decrease the level of a specific protein. c. increase the level of a specific protein. d. prevent the Warburg effect.arrow_forwardMicroRNAs are small RNA molecules that bind to the 3′ end of mRNA and suppress translation . Some eukaryotic mRNAs have internal ribosome-binding sites downstream of the 5′ cap, where ribosomes normally bind. In one investigation, miRNAs did not suppress translation by ribosomes that had attached to internal ribosomebinding sites (R. S. Pillai et al. 2005. Science 309:1573–1576). What does this finding suggest about how miRNAs suppress translation?arrow_forwarda mutation in the gene encoding Dicer would most likely result in: A) a failure to break the H bonds holding the 2 strands of the siRNA together B) the inability to form H bonds betwen the siRNA and the complementary mRNA that it targets. C) the inability of the target mRNA to be cleaved upon H bonding with the siRNA D) a failure to produce siRNAs responsible for knocking down gene expression E) the failure to produce a dsRNA specific to your gene of interestarrow_forward
- Which of the following statements best describes the promoter of a protein-coding gene? A. The promoter is a protein that recruits RNA polymerase. B. The promoter is part of the RNA molecule itself. C. The promoter is a site found on RNA polymerase. D. The promoter contains the AUG start codon. E. The promoter is a nontranscribed region of a gene.arrow_forwardPortions of eukaryotic mRNA sequence that are removed during RNA processing are . a. exons b. caps c. poly-A tails d. intronsarrow_forwardMolecules in higher eukaryotes that are directly involved in gene silencing include all of the following except a. miRNA b. argonaute c. microprocessor d. glycosylasearrow_forward
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