Which of the following functions are characteristic of general transcription factors in eukaryotes? Hint: there may be more than one correct response. Be sure to check all that apply. OThey inhibit RNA polymerase binding to the promoter and begin transcribing. They bind to other proteins or to the TATA box. O They are sufficient to allow high levels of transcription. O They initiate and regulate the transcription of genes. They bind to sequences just after the start site of transcription.

Which of the following functions are characteristic of general transcription factors in eukaryotes? Hint: there may be more than one correct response. Be sure to check all that apply. OThey inhibit RNA polymerase binding to the promoter and begin transcribing. They bind to other proteins or to the TATA box. O They are sufficient to allow high levels of transcription. O They initiate and regulate the transcription of genes. They bind to sequences just after the start site of transcription.

Name: Which of the following functions are characteristic of general transc
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Description: Which of the following functions are characteristic of general transcription factors in eukaryotes?Hint: there may be more than one correct response. Be sure to check all that apply.They inhibit RNA polymerase binding to the promoter and begin trans

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter14: Gene Regulation

Section: Chapter Questions

Problem 10TYU: Which of the following is an example of positive control? (a) transcription occurs when a repressor...

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Which of the following is an example of positive control? (a) transcription occurs when a repressor binds to an inducer (b) transcription cannot occur when a repressor binds to a corepressor (c) transcription is stimulated when an activator protein binds to DNA (d) a and b (e) a and c
Give one example of a prokaryotic system of gene expression that is more complicated (duringtranscription at the promoter) than its corresponding eukaryotic system of gene expression.A. prokaryotes require general transcription factors to initiate transcriptionB. prokaryotes typically have activator and repressor DNA sequences thousands of nucleotides awayC. prokaryotes have three classes of RNA polymerasesD. prokaryotes always have their DNA tightly packed into higher-level structures than nucleosomesE. prokaryotes usually have polycistronic mRNA
A particular mutation in the bacterial sigma factor allows this protein to bind RNA polymerase but prevents it from coming off (detaching) RNA polymerase once it binds. What specific effect will this mutation have on transcription? It will prevent the transcription termination exerted by the Rho protein. It will prevent the formation of closed complexes between RNA polymerase and the promoter. It will prevent the formation of open complexes between RNA polymerase and the promoter. It will prevent the transition from the transcription initiation to the transcription elongation stage. It will prevent the synthesis of abortive RNA transcripts while the RNA polymerase is bound at the promoter.
What is the role of general transcription factors? GTFs bind to enhancers or silencers and regulate transcription GTFs bind to the core promoter and allow transcriptional initiation GTFs are cis-acting regulatory sequences GTFs regulate the length of the mRNA GTFs are part of the RNA polymerase II holoenzyme, and control transcription initiation
Which of the following best explains how the prokaryotic expression of a metabolic protein can be regulated when the protein is already present at a high concentration? a.Repressor proteins can be activated and bind to regulatory sequences to block transcription. b.Regulatory proteins can be inactivated to increase gene expression. c.Transcription factors can bind to regulatory sequences to increase RNA polymerase binding. d.Histone modification can prevent transcription of the gene.
The assembly of general transcription factors on eukaryotic promoters for RNA polymerase II begins with _________________________________. the binding of sigma factor to the -10 box the binding of TFIIH to help unwind the DNA strands the binding of RNA polymerase II to the TATA box All of the other answers are correct the binding of TFIID to the TATA box
Which of the following DNA regions is NOT involved on gene expression regulation in Eukaryotes?. ( not enhancer or promotor-proximal) A. Promoter-proximal B. Promoter C. Enhancer D. Operator
Which of the follow general transcription factors contains the protein TBP and binds to TATA box promoters first? Group of answer choices TFIID TFIIB TFIIA TFIIF
Which of the following is true only for eukaryotic gene expression? mRNA is synthesized in the 3' ---> 5' direction. Translation of mRNA routinely begins before transcription is complete. The mRNA transcript is the exact complement of the gene from which it was copied. After transcription, a 3' poly-A tail and a 5' cap are added to mRNA. RNA polymerase binds to the promoter region to begin transcription.
Which of the following is not a general description of the gene expression regulation mechanisms that operate in eukaryotic organisms? transcriptional-level control processing-level control translational level-control replication-level controls
Which of the following DNA regions is NOT involved in gene expression regulation in eukaryotes? Promoter-proximal elements Promoter Enhancer Operator **Enhancer is incorrect
Which of the following mutations could affect the process of transcription initiation in bacteria? Mutations in the Pribnow box (-10 box) resulting in mismatches to the consensus sequence. All of the other choices are correct. Mutations disrupting the function of the UP element. An insertion of 12 nucleotides between the -10 box and -35 box. Mutations in the -35 box resulting in mismatches to the consensus sequence.