Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 13, Problem 3TY
Summary Introduction
Introduction: Many different functions can be carried out by ncRNAs as they have the ability to bind with many different types of molecules such as DNA, other mRNAs, proteins or other small molecules. This is the reason that many different processes such as
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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.
When an ncRNA functions as a decoy, ita. contains binding sites for many different proteins, therebypromoting the formation of a large complex.b. recognizes other ncRNAs and sequesters them, therebypreventing them from working.c. can alter its conformation, allowing it to switch betweenactive and inactivate conformations.d. may physically prevent or block a cellular process fromhappening.
microRNAs degrade ______________ and is an example of __________ regulation.
Select one:
a.
DNA, post-transcriptional
b.
RNA, post-transcriptional
c.
protein, post-transcriptional
d.
RNA, post-translational
e.
protein, post-translational
Chapter 13 Solutions
Biology
Ch. 13.1 - Prob. 1CCCh. 13.2 - Prob. 1CCCh. 13.3 - Prob. 1EQCh. 13.3 - Prob. 2EQCh. 13.3 - Prob. 3EQCh. 13.3 - Effects of Non-coding RNAs on Translation and mRNA...Ch. 13.4 - Non-coding RNAs and Protein Sorting Core Skill:...Ch. 13.5 - Core Skill: Modeling The goal of this modeling...Ch. 13 - Prob. 1TYCh. 13 - Prob. 2TY
Ch. 13 - Prob. 3TYCh. 13 - Prob. 4TYCh. 13 - Prob. 5TYCh. 13 - Prob. 6TYCh. 13 - With regard to miRNAs and siRNAs, which of the...Ch. 13 - Cas1 and Cas2 proteins play a role during which of...Ch. 13 - Which of the following components bind to...Ch. 13 - Abnormalities in the expression of ncRNAs are...Ch. 13 - An ncRNA may have one or more of the following...Ch. 13 - What is RNA interference (RNAi)? Explain how the...Ch. 13 - Prob. 3CQCh. 13 - Prob. 1COQCh. 13 - Go to the PubMed website and search for non-coding...
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- Arrange the statements in their proper order by writing the corresponding letter (e.g. A) for each statement in the space provided below. A. The single-stranded RNA would complement the target RNA. B. Gene expression is inactivated once the mRNA is no longer accessible for translation. C. The risk-induced silencing complex which is composed of RNA and protein subunits is formed. D. Double-stranded, non-coding RNA is cleaved by Dicer. E. The mRNA can be cleaved or remain bound by the RISC. 1. 2. 3. 4. 5.arrow_forwardStem cells (cells with little or no determination) are useful in many kinds of biological research for which of the following reasons? Group of answer choices A. they do not have particular cell fates B. None of their DNA is methylated C. They have unique cytoplasmic determinants D. They have no microRNA E. They have not differentiatedarrow_forwardA man was brought to the hospital showing "pneumonia"-like symptoms. They took the viral load and determined this to be the new RNA retrovirus infecting lung cells. Since antibodies were unavailable, doctors decided to treat him with drugs. Which of the following would most benefit the patient? A. Drug A is an inhibitor of the binding of 4OS with 60S ribosome of the lung cells. B. Drug B is a structural analogue of the viral peptide that binds to the receptor of the host cell enabling viral entry into the cell. C. Drug C is a polar molecule that inhibits the lytic enzymes activated upon viral infection. D. Drug D is an inducer of a proteolytic enzyme. E. Drug E is a steroid that binds at the regulatory site of a gene causing the synthesis of a repressor that binds at the gene site for the receptor.arrow_forward
- 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. Proteinarrow_forwardDefine the following terms:a. signal peptideb. preinitiation complexc. initiation complexd. PABPe. cap-binding complexarrow_forwardAlternative RNA splicing a. is a mechanism for increasing the rate of transcription. b. can allow the production of proteins of different sizes from a gene. C. can allow the production of similar proteins from different RNAS. d. increases the rate of transcription. e. is due to the presence or absence of particular snRNAs.arrow_forward
- The molecule that carries the genetic information of DNA fromthe nucleus to the cytoplasm to be used in protein synthesis isa. ribosomal RNA.b. messenger RNA.c. transfer RNA.d. microRNA.arrow_forwardThe process of RNA interference may lead toa. the degradation of an mRNA.b. the inhibition of translation of an mRNA.c. the synthesis of an mRNA.d. both a and b.arrow_forwardSigma factors recognize the _________ which then allows RNA polymerase to transcribe the ___________ strand of ____________. Select one: a.OriC / Sense / RNA b.Promoter / Anti-Sense / RNA c.Promoter / Sense / DNA d.OriC / Anti-Sense / DNA e.None of the Abovearrow_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_forwardWhich 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. siRNAarrow_forwardWhich of the following makes alternative RNA splicing possible? Group of answer choices A. Parts of a gene can function as exons or introns B. DNA methylation C. Parts of a gene can be either transcribed or not D. Histone Acetylation E. Parts of a gene can bind to RNA polymerase or notarrow_forward
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