Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 13, Problem 2TY
Summary Introduction
Introduction: ncRNAs have the ability to bind with many different types of molecules such as DNA, other mRNAs, proteins or other small molecules and thus carry out many different functions. ncRNAs can affect different processes such as
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After tmRNA releases an mRNA and aberrant polypeptide from a stuck ribosome, the resulting polypeptide will
A) be translated
B) be destroyed by a protease
C) be inserted into the cell membrane
D) be used to regulate gene expression
Abnormalities in the expression of ncRNAs are associated witha. many forms of cancer.b. neurological disorders.c. cardiovascular diseases.d. all of the above.
Imagine the four basic components of gene regulation are DNA, RNA, proteins, and small molecules. Which of these things can ncRNA interact with?
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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- List and briefly describe four types of molecules that can bind to an ncRNA.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_forwardDefine the following terms: a. noncoding RNA b. miRNA c. siRNA d. snoRNA e. lncRNAarrow_forward
- Promoters are DNA sequences a. near a transcription start site b. bound to a repressor protein c. that inhibit transcription of a gene d. that stimulate ncRNA activityarrow_forwardList five types of cancer in which ncRNAs can be involved.arrow_forwardRNA interference is mediated by: a. miRNA b. tRNA c. sgRNA d. mRNAarrow_forward
- In gene silencing, the “dicer” enzymea. assembles siRNAs into a RISC complex.b. unwinds the RISC complex.c. binds siRNA to mRNA sequences complementary to it.d. slices up double-stranded RNA moleculesarrow_forwardChanges 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_forwardExplain how the ncRNA known as HOTAIR plays a role in gene repression.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_forwardGiven that ncRNA can have separate protein interaction sequences and nucleotide interaction sequences, do you think a single ncRNA could guide different proteins to the same DNA sequence? Why or why not?arrow_forwardDefine the following terms:a. tmRNAb. SECIS elementc. initiationd. elongatione. terminationarrow_forward
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