BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 16, Problem 2A
Specific transcription factors in eukaryotes interact with enhancers, which may be a long distance from the promoter. These transcription factors then
a. alter the structure of the DNA between enhancer and promoter.
b. do not interact with the transcription apparatus.
c. can interact with the transcription apparatus via DNA looping.
d. can interact with the transcription apparatus by removing the intervening DNA.
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Students have asked these similar questions
Transcription of eukaryotic genes requires the presence of a promoter and usually the presence of enhancers. An enhancer:
A. is a consensus sequence in DNA located where RNA polymerase first binds.
B. may be located in various places in different genes.
C. may be on either strand of DNA in the region of the gene.
D. functions by binding RNA polymerase.
E. stimulates transcription in both prokaryotes and eukaryotes.
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.
Is 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.
Chapter 16 Solutions
BIOLOGY
Ch. 16.1 - Prob. 1LOCh. 16.1 - Prob. 2LOCh. 16.1 - Prob. 3LOCh. 16.2 - Explain how proteins can interact with base-pairs...Ch. 16.2 - Prob. 2LOCh. 16.3 - Prob. 1LOCh. 16.3 - Prob. 2LOCh. 16.3 - Explain control of gene expression in the trp...Ch. 16.4 - Prob. 1LOCh. 16.4 - Prob. 2LO
Ch. 16.4 - Prob. 3LOCh. 16.5 - Describe at least two kinds of epigenetic mark.Ch. 16.5 - Explain the function of chromatin-remodeling...Ch. 16.6 - Prob. 1LOCh. 16.6 - Prob. 2LOCh. 16.7 - Prob. 1LOCh. 16.7 - Prob. 2LOCh. 16 - Prob. 1DACh. 16 - What advantage might a bacterium gain by linking...Ch. 16 - Prob. 2IQCh. 16 - Prob. 3IQCh. 16 - In prokaryotes, control of gene expression usually...Ch. 16 - Prob. 2UCh. 16 - Prob. 3UCh. 16 - The lac operon is controlled by two main proteins....Ch. 16 - In eukaryotes, binding of RNA polymerase to a...Ch. 16 - In eukaryotes, the regulation of gene expression...Ch. 16 - In the trp operon, the repressor binds to DNA a....Ch. 16 - Prob. 1ACh. 16 - Specific transcription factors in eukaryotes...Ch. 16 - Repression in the trp operon and induction in the...Ch. 16 - Regulation by small RNAs and alternative splicing...Ch. 16 - Eukaryotic mRNAs differ from prokaryotic mRNAs in...Ch. 16 - In the cell cycle, cyclin proteins are produced in...Ch. 16 - A mechanism of control in E. coli not discussed in...Ch. 16 - You have isolated a series of mutants affecting...Ch. 16 - Examples of positive and negative control of...Ch. 16 - What forms of eukaryotic control of gene...Ch. 16 - The number and type of proteins found in a cell...
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- Which statement/s is/are TRUE about transcription?A. During transcription, DNA polymerase binds to RNA and separates the DNA strands.B. RNA polymerase uses one strand of DNA as a template to assemble nucleotides into a strand of RNA.C. RNA polymerase binds only to DNA promoters, which have specific base sequences.D. Promoters are signals in RNA that indicate to RNA polymerase where to begin transcription.E. Transcription occurs in the 3’ to 5’ direction with respect to the growing mRNA strand.arrow_forwardWhich of the following is not true regarding gene regulation that involves DNA bending? a. The precise distance between the regulatory sequence and the promoter is important. b. Effect can be to repress transcription c. Effect can be to activation transcription d. Regulated genes can be thousands of base pairs away from the regulatory sitesarrow_forwardOnly one of the two strands of DNA is transcribed because a. RNA polymerase binds to the terminator, stopping transcription on one strand of DNA. b. both strands are transcribed, but only one strand of DNA contains a reading frame. c. DNA consists of only one strand in the nucleus of the cell. d. RNA polymerase binds to the promoter, initiating transcription on only one strand of DNA. e. the start of transcription is random along the chromosome and does not always occur on a gene.arrow_forward
- Which of the following is false regarding the role of mediator complex in eukaryotic transcription initiation? a. Mediator complex interacts with RNA pol II b. Mediator binds to upstream enhancer sequences c. Mediator interacts with general transcription factors d. Mediator interacts with transcriptional activators e. All of the above are true about the mediator complexarrow_forwardWhich of these is used in the transcription of all genes? Choose all correct answers. A. Core promoter B. Proximal promoter C. Distal promoter D. General Transcription Factors E. Regulatory Transcription Factorsarrow_forwardWhat would the direct consequence to a cell be if there was a loss of function of Transcription Factor II D? (Only select processes in which TFIID has a role.) You may answer multiple answers. a. Terminators at the end of the coding regions of genes would not be recognized. b. In the cytoplasm, mRNA would not be protected from enzymes that degrade mRNA. c. Primary RNA transcripts would not be accurately spliced. d. Initiation of transcription would be absent or decreased. mRNAs would be unable to exit the nucleus.arrow_forward
- Select all of the processes that could be involved in a transcriptional repressor leading to decreased gene expression. a. chromatin remodelling complex responds to tail modification by removing nucleosomes . b. transcription factor binding attracts acetyltransferase enzymes . C. transcription factor binding attracts deacetylase enzymes . D. chromatin remodelling complex responds to tail modification by shifting nucleosomes to a denser grouping. E. DNase cuts the exposed DNA to prevent transcription initiation F. RNA polymerase is unable to recognize the promoter because of the dense chromatin configurationarrow_forwardMost transcriptional activator proteins affect transcription by interacting with a. introns. b. the basal transcription apparatus. c. DNA polymerase. d. the terminator.arrow_forwardWhich of the following activities DOES NOT happen during the initiation stage of transcription? A. Use of RNA polymerase. B. Detection of TATA-box C. Attachment of transcription factors D. Addition of G' Cap and Poly-A tail A section of DNA has the following sequence of nitrogenous bases: CGATTACAG. Which of the following sequence would be produced as a result of transcription? A. CGTUUTCTG B. GCTAATGTC C. CGAUUACAG D. GUAAUGUCarrow_forward
- Eukaryotic transcription A. is independent of the presence of upstream consensus sequences. B. may involve a promoter located within the region transcribed rather than upstream. C. requires a separate promoter region for each of the three ribosomal RNAs transcribed. D. requires that the entire gene be in the nucleosome form of chromatin. E. is affected by enhancer sequences only if they are adjacent co the promoter .arrow_forwardRegulatory proteins in Prokaryotes shut off transcription by binding to a site immediately in front of the promoter and often even overlapping the promotor. This site is referred to as the A. suppressor site. B. operator site. C. co-activator site. D. regulatory site.arrow_forwardA scientist compares the promoter regions of two genes. Gene A’s core promoter plus proximal promoter elements encompasses 70bp. Gene B’s core promoter plus proximal promoter elements encompasses 250bp. Which of the scientist’s hypotheses is most likely to be correct? a. More transcripts will be made from Gene B. b. Transcription of Gene A involves fewer transcription factors. c. Enhancers control Gene B’s transcription. d. Transcription of Gene A is more controlled than transcription of Gene B.arrow_forward
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