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 5TYK
Summary Introduction
Introduction:
Gene expression is the process involving the synthesis of protein from the
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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
Through 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 toactivate transcription
a) What is a gene promoter? b) What proteins bind to a promoter? c) What do those proteins do to control gene expression?
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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- Through 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_forwardHow is transcription directly controlled in eukaryotic cells? a. through the use of phosphorylation b. by means of apoptosis c. using transcription factors and activators d. when chromatin is packed to keep genes turned on e. None of these are correct.arrow_forwardWhat are two reasons that a eukaryotic gene (e.g. Green Fluorescent Protein in jellyfish) will not be expressed if it is inserted into a bacterial genome with no alterations? a. Bacterial genes do not contain introns b. Bacterial promoters have different consensus sequences than eukaryotic ones c. Transcription of this gene is affected by the simultaneous processes of transcription and translation d.arrow_forward
- Which of the following is true of transcription factors? A)The same transcription factors are found in all cell types. B)They can increase or decrease gene expression. C)They are a type of cis-acting element. D)They bind only to promoters.arrow_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_forwardCompare and contrast the role of promoter and operators with enhancers and repressors.arrow_forward
- Which of the following is true of CpG islands? a. They are methylated near promoters of actively transcribed genes. b. They are unmethylated near promoters of actively transcribed genes. c. Acetylation of CpG islands leads to repression of transcription. d. CpG islands code for RNA molecules that activate transcription.arrow_forwardWhich of the following processes is required for the initiation of transcription in bacteria? Select one: a. binding of sigma to the promoter region b. formation of a peptide bond in the elongating polypeptide chain c. formation of a phosphodiester bond in the elongating RNA strand d. binding of DNA polymerase to the promoter regionarrow_forwardWhy is regulating transcription the main way that cells control gene expression? A. Because transcription is the last step in gene expression, stopping here ensures that the cell has a stockpile of proteins to prepare them from all unexpected environmental changes. B. Because transcription involves interactions with DNA, preventing transcription reduces the changes of mutation in the cell’s genome. C. Because transcription is the first step in gene expression, stopping at transcription reduces the amount of energy and resources used by producing unnecessary gene products. D. Because transcription is the shortest step in gene expression, preventing transcription has little effect on the rate of protein production.arrow_forward
- What strategy does a genetically encoded calcium indicator look like to allow fluorescence imaging of only one cell type in an acute slice of the brain? A.The use of fluorescent protein expression inhibitors in other cells B.The injection of a recombinant virus causing the death of other cells C.The use of a promoter specific to these cells D.Activation of membrane receptors specific to these cellsarrow_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_forwardSuppose that a consensus sequence in the regulatory promoter of a eukaryotic gene that encodes enzyme A were deleted. Which of the following effects would result from this deletion? Explain your reasoning. Q.. The amount of mRNA transcribed would be affectedarrow_forward
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