1PT A. Describe the structure and function of the carboxyl terminal domain (CTD) of RNA polymerase...
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1PT A. |
Describe the structure and function of the carboxyl terminal domain (CTD) of RNA polymerase II. |
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1PT B. |
Give a functional definition of a gene. |
Homework Answers
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1PT A.
Describe the structure and function of the carboxyl terminal
domain (CTD) of RNA polymerase...
Describe how the carboxy terminal domain (CTD) of RNA polymerase II is involved in initiation and...
Describe how the carboxy terminal domain (CTD) of RNA polymerase II is involved in initiation and elongation of transcription. HTML Editori B I VA - A - Ix E 1 1 1 x X, DE T TH 12pt Paragraph Tube O words
B. The C-terminal domain (CTD) of RNA polymerase II has a repeating structure. Phosphates can be...
B. The C-terminal domain (CTD) of RNA polymerase II has a repeating structure. Phosphates can be attached to serine residues within the repeats. What are the various roles that CTD phosphorylation can play? How might the repeating nature of the CTD be important for those roles? How can you test your ideas experimentally? Cite your work
RNA processing is determined by phosphorylation patterns in the C-terminal repeat domain (CTD) of the RNA...
RNA processing is determined by phosphorylation patterns in the C-terminal repeat domain (CTD) of the RNA polymerase II. Explain in a mechanistic manner how a deficiency in the enzyme CTDK-1 affects RNA processing.
Part A The sigma (?) subunit binds to the core RNA polymerase enzyme. The function of...
Part
A
The sigma (?) subunit binds to the core RNA polymerase
enzyme. The function of this sigma factor is to recognize and bind
to the promoter of a gene so that transcription can be initiated.
The closeup shows the secondary structure of the sigma (?)
subunit, which consists of four domains. Identify the domains
labeled 1-3.
The sigma (?) subunit binds to the core RNA polymerase
enzyme. The function of this sigma factor is to recognize and bind
to...
Which of the following mRNA processing factors associates with the CTD of RNA polymerase II? A....
Which of the following mRNA processing factors associates with the CTD of RNA polymerase II? A. Splicing factors B. Polyadenylation factors C. Capping proteins D. siRNAs
Describe in detail the structure of the RNA polymerase II CDT and how the structure is...
Describe in detail the structure of the RNA polymerase II CDT and how the structure is used to sequentially regulate the maturation of the pre-mRNA during the elongation phase of transcription. Focus on the events which happen on RNA polymerase II CDT. For mechanisms which are directly responsible for pre-mRNA processing, you only need to mention their names.
Describe the main features of an eukaryotic RNA Polymerase II complex with all 12 subunits identified...
Describe the main features of an eukaryotic RNA Polymerase II complex with all 12 subunits identified from the crystal structure, and the function of each feature. ) Describe the main features of an eukaryotic RNA Polymerase II complex with all 12 subunits identified from the crystal structure, and the function of each feature.
What keeps TFIIF from stimulating a specific phosphatase to remove the phosphate groups from the CTD...
What keeps TFIIF from stimulating a specific phosphatase to remove the phosphate groups from the CTD while RNA pol II is still in the preinitiation complex (PIC)? Contact with mediator through SRB4 Contact with TFIIB Contact with TFIIA through the large subunit (TFIIA alpha) Cdk8 of mediator represses TFIIF activity Which of the following would most likely NOT be found in the promoter of a typical housekeeping (constitutive) gene? TATAA Initiator region Enhancer element CpG island How is the mediator...
Suppose a mutation occurs in the gene encoding eukaryotic RNA polymerase I, II, or lll that...
Suppose a mutation occurs in the gene encoding eukaryotic RNA polymerase I, II, or lll that renders that polymerase non-functional. Match each RNA polymerase mutation with all of the cellular processes that it would disrupt. Mutation in eukaryotic RNA polymerase I Mutation in eukaryotic RNA polymerase II Mutation in eukaryotic RNA polymerase III pre-mRNA processing RNA synthesispre-mRNA synthesis RNAi-mediated gene regulation IRNA synthesis mRNA translation rRNA processing
Describe the structure and function of elements needed for transcription, including the promoter, RNA polymerase core...
Describe the structure and function of elements needed for transcription, including the promoter, RNA polymerase core enzyme and holoenzyme, sigma factor, and template and non-template (coding) strands of DNA. eukaryotes - . List major differences between transcription and RNA processing in bacteria and o What is coupled transcription/translation? o What is a polyribosome? Is it exclusive of bacterz - Discuss major components and events in RNA processing, in - Describe tRNA stru - Discuss mech cluding, introns and exons, splicing....
Describe how the carboxy terminal domain (CTD) of RNA polymerase II is involved in initiation and elongation of transcription. HTML Editori B I VA - A - Ix E 1 1 1 x X, DE T TH 12pt Paragraph Tube O words
Part
A
The sigma (?) subunit binds to the core RNA polymerase
enzyme. The function of this sigma factor is to recognize and bind
to the promoter of a gene so that transcription can be initiated.
The closeup shows the secondary structure of the sigma (?)
subunit, which consists of four domains. Identify the domains
labeled 1-3.
The sigma (?) subunit binds to the core RNA polymerase
enzyme. The function of this sigma factor is to recognize and bind
to...
Describe in detail the structure of the RNA polymerase II CDT and how the structure is used to sequentially regulate the maturation of the pre-mRNA during the elongation phase of transcription. Focus on the events which happen on RNA polymerase II CDT. For mechanisms which are directly responsible for pre-mRNA processing, you only need to mention their names.
Suppose a mutation occurs in the gene encoding eukaryotic RNA polymerase I, II, or lll that renders that polymerase non-functional. Match each RNA polymerase mutation with all of the cellular processes that it would disrupt. Mutation in eukaryotic RNA polymerase I Mutation in eukaryotic RNA polymerase II Mutation in eukaryotic RNA polymerase III pre-mRNA processing RNA synthesispre-mRNA synthesis RNAi-mediated gene regulation IRNA synthesis mRNA translation rRNA processing
Describe the structure and function of elements needed for transcription, including the promoter, RNA polymerase core enzyme and holoenzyme, sigma factor, and template and non-template (coding) strands of DNA. eukaryotes - . List major differences between transcription and RNA processing in bacteria and o What is coupled transcription/translation? o What is a polyribosome? Is it exclusive of bacterz - Discuss major components and events in RNA processing, in - Describe tRNA stru - Discuss mech cluding, introns and exons, splicing....
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