PEARSON Campbell Biology Concepts and Connections Second Custom Edition for Austin Community College
2nd Edition
ISBN: 9781269918084
Author: Jane B. Reece, Martha R. Taylor, Jean L. Dickey, and Kelly Hogan Eric J. Simon
Publisher: PEARSON
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Textbook Question
Chapter 18, Problem 5TYU
Which of the following is an example of post-transcriptional control of gene expression?
- (A) the.addtion of methyl groups to cytosine base of DNA
- (B) the binding of transcriprion factors to a promoter
- (C) the removal of introns and alternative splicing of exons
- (D) gene amplification contributing to cancer
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Students have asked these similar questions
For each statement about gene expression mechanisms, choose the correct end to the sentence.
For each gene, the template strand for transcription is determined by….
The direction of translation is determined by……
The tissue-specificity of protein production is determined by….
choices:
a. location of the start codon
b. location of the promoter
c. direction of polymerization by RNA polymerase
d. none of these
e. direction of movement of ribosomes
f. overall orientation of the chromosome
In order to manufacture insulin for patients with diabetes, scientists create recombinant DNA by inserting a human insulin gene into bacterial DNA and have the bacteria produce human insulin. Based on what you have learned in this unit about gene expression, what must the scientists do to the DNA sequence of the human insulin gene BEFORE inserting it into the bacteria, in order to have them produce the same insulin sequence that humans would produce? Explain.
Regarding transcriptional promoter sites, which of the following statements are true? Select one or more than one:
a)They are located in the gene (DNA) whose information will be transcribed
b)They are found at the 3 'end of the gene that will be transcribed
c)Some of them are called 'TATA box'
d)They are found in the DNA, 'upstream' of the gene to be transcribed.
e)They are proteins of the cytoplasm
Chapter 18 Solutions
PEARSON Campbell Biology Concepts and Connections Second Custom Edition for Austin Community College
Ch. 18.1 - How does binding of the trp corepressor to the trp...Ch. 18.1 - Describe the binding of RNA Polymerase,...Ch. 18.1 - WHAT IF? A certain mutation in E. coli changes...Ch. 18.2 - In general, what are the effects of histone...Ch. 18.2 - Compare the roles of general and specific...Ch. 18.2 - WHAT IF? Suppose you compared the nucleotide...Ch. 18.2 - Once mRNA encoding a particular protein reaches...Ch. 18.3 - Compare miRNAs and siRNAs, including their...Ch. 18.3 - WH AT IF? Suppose the mRNA being degraded in...Ch. 18.4 - MAKE CONNECTIONS As you learned in Chapter 12,...
Ch. 18.4 - MAKE CONNECTIONS Explain how the signaling...Ch. 18.4 - How do fruit fly maternal effect genes determine...Ch. 18.4 - Prob. 4CCCh. 18.5 - MAKE CONNECTIONS The p53 protein can activate...Ch. 18.5 - Under what circumstances is cancer considered to...Ch. 18.5 - Prob. 3CCCh. 18 - Compare and contrast the roles of a corepressor...Ch. 18 - Describe what must happen in a cell for a gene...Ch. 18 - Why are miRNAs called noncoding RNAs? Explsin how...Ch. 18 - Describe the two main processes that cause...Ch. 18 - Compare the usual functions of proteins encoded by...Ch. 18 - If a particular operon encodes enzymes for making...Ch. 18 - Muscle cells differ from nerve cells mainly...Ch. 18 - The functioning of enhancers is an example of (A)...Ch. 18 - Cell differentiation always involves (A)...Ch. 18 - Which of the following is an example of...Ch. 18 - What would occur if the repressor of an inducible...Ch. 18 - Absence of bicoid in mRNA from a Drosophila egg...Ch. 18 - Which of the following statements about the DNA in...Ch. 18 - Within a cell, the amount of protein made using a...Ch. 18 - Prob. 10TYUCh. 18 - Prob. 11TYUCh. 18 - Prob. 12TYUCh. 18 - Prob. 13TYUCh. 18 - Prob. 14TYUCh. 18 - WRITE ABOUT A THEME: INTERACTIONS In a Short essay...Ch. 18 - SYNTHESIZE YOUR KNOWLEDGE The flashlight fish has...
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- Which of the following is an example of post-transcriptionalcontrol of gene expression?(A) the addition of methyl groups to cytosine bases of DNA(B) the binding of transcription factors to a promoter(C) the removal of introns and alternative splicing of exons(D) gene amplification contributing to cancerarrow_forwardIs each of the following statements true or false? A. An enhancer is a type of regulatory element. B. A core promoter is a type of regulatory element. C. Regulatory transcription factors bind to regulatory elements. D. An enhancer may cause the down regulation of transcription.arrow_forwardTranscriptional repressor proteins (e.g., lac repressor), antisense RNA, and feedback inhibition are three different mechanisms that turn off the expression of genes and gene products. Which of these three mechanisms will be most effective in each of the following situations? A. Shutting down the synthesis of a polypeptide B. Shutting down the synthesis of mRNA C. Shutting off the function of a protein For your answers to parts A–C that list more than one mechanism, which mechanism will be the fastest or the most efficient?arrow_forward
- You are teaching a class on the regulation of eukaryotic gene expression. In order to demonstrate this complex process, you decide to draw for the class a typical eukaryotic gene/transcription unit with its major regions, such as the promoter regions, where the RNA polymerase II and transcription factors would bind From the list given - choose all components that you think are part of a typical eukaryotic gene From the list given - choose all the regulatory sequences that you think would control the expression of this eukaryotic gene From the list given - choose all of the regulatory proteins that would bind the eukaryotic gene to control its expressionarrow_forwardTranscriptional regulation often involves a regulatory protein that binds to a segment of DNA and a small effector molecule that binds to the regulatory protein. Do each of the following terms apply to a regulatory protein, a segment of DNA, or a small effector molecule? A. Repressor B. Inducer C. Operator site D. Corepressor E. Activator F. Attenuator G. Inhibitorarrow_forwardThe most common type of regulation of gene expression occurs at the level of transcription. Name other types of gene regulation for gene expression in eukaryotic cells. Name types of gene regulation unique to eukaryotic cells versus prokaryotic cells.arrow_forward
- Compare and contrast the formation of mRNA in bacterial and eukaryotic cells. How do the differences affect the way in which each type of mRNA is translated? Does one system have obvious advantage in term of energy cost? Which system offers greater opportunities for control of gene expression?arrow_forwardMutations that occur at the end of a gene may alter the sequence of the gene and prevent transcriptional termination. A. What types of mutations would prevent ρ-independent termination? B. What types of mutations would prevent ρ-dependent termination? C. If a mutation prevented transcriptional termination at the end of a gene, where would gene transcription end? Or would it end?arrow_forwardWhich of the following gene expression regulatory mechanisms saves the most energy but takes the longest to fully express the genes once signaled? a. transcriptional regulation b. post-transcriptional regulation c. post-translational regulation d. translational regulationarrow_forward
- what is meant by gene expression and which are the 5 most regulated steps in this process, explain each step?arrow_forwardTranscriptional regulators are proteins that bind to promoters (the 5-flanking regions of genes) to regulate their transcription. Assume that a particular transcription regulator normally promotes transcription of gene X, a transport protein. If a mutation makes this regulator gene nonfunctional, would the resulting phenotype be similar to a mutation in gene X itself? Why or why not?arrow_forwardThrough alternative splicing, eukaryotes (a) reinforce gene inactivation (b) prevent transcription of heterochromatin (c) produce related but different proteins in different tissues (d) amplify genes to meet the requirement of high levels of a gene product (e) bind transcription factors to enhancers to activate transcriptionarrow_forward
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