Homework Answers
The correct answer is option D and E.
The primary transcripts in eukaryotes contain both exons and introns and hence are non functional.Post transcriptional modifications include: Capping,Splicing and Tailing.In capping methyl guanosine triphosphate is added to ,5' -end of hnRNA.In splicing,the introns are removed and exons are joined.In tailing,Poly A tail is added at 3' end.
Binding of the sigma factor to the promoter region is to initiate the process of transcription and is not a post transcriptional modification.
Transcription factors bind to the promoter region and help in the regulation of transcriptional processes.
Activators binding to enhancers in DNA helps in the regulation of transcription and is not a post transcriptional modification.
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QUESTION 12 Which of the following could be considered post transcriptional modification...
Describe how to control transcriptional initiation occurs in both PROKARYOTES and EUKARYOTES. Word bank: promoter TATA-Binding...
Describe how to control transcriptional initiation occurs in both PROKARYOTES and EUKARYOTES. Word bank: promoter TATA-Binding Protein (TBP) RNA polymerase + sigma factor enhancer TATA-box gene-specific transcription factors RNA polymerase + GTFs phosphodiester bonds -10 and -35 consensus sequences mediator protein +1 Transcriptional Start Site (TSS) deoxynucleoside triphosphates (dNTPs) template DNA RNA transcript.
Looking at the diagram of transcription in eukaryotes and using the information provided, how could the...
Looking at the diagram of transcription in eukaryotes and using the
information provided, how could the expression of lactase RNA be
turned on and off by transcription factors, activators and
repressors?
Styles Font Paragraph Activators bind to genes at Rapressors bind to genes seauences and at shaoser sequences and The expression of RNA in eukaryotes is initiated by the binding of basal transcription factors to the promoter sequence of a gene. This leads to the recruitment of RNA polymerase to...
Which of the following correctly describes eukaryotic transcriptional control? a. A transcription factor is a...
Which of the following correctly describes eukaryotic transcriptional control? a. A transcription factor is a DNA molecule that helps RNA polymerase to bind to the enhancer of a specific gene. b. An enhancer is a protein that encourages gene expression by binding to the DNA. c. The promoter is the region of RNA where DNA polymerase will bind to begin transcription. d. The interaction of multiple transcription factors may be required in order to transcribe a...
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....
Identify the statements that are features of a promoter. Pick all that Apply. A. In eukaryotes,...
Identify the statements that are features of a promoter. Pick all that Apply. A. In eukaryotes, the promoter recruits the preinitiation complex, which includes the TATA-binding protein. b. In prokaryotes, the promoter is recognized by general transcription factors (GTF), which recruit the RNA polymerase holoenzyme. c. In eukaryotes, the promoter attracts the small and large ribosomal subunits with the help of initiation factors. d. In prokaryotes, the promoter contains a –35 and –10 region upstream of the transcription start site...
Question 15 Not yet answered Which of the following is TRUE about eukaryotic enhancers: An enhancer...
Question 15 Not yet answered Which of the following is TRUE about eukaryotic enhancers: An enhancer Points out of 2.50 P Flag question Select one: O a. Is a DNA sequence that can be far away from the promoter and where transcriptional activators bind O b. Is an operator DNA sequence where the Mediator complex binds o c. Is a DNA sequence where the general transcription factors bind O d. Is a protein that binds at the promoter and activates...
Question 8 (1 point) The primary RNA transcript of the chicken ovalbumin gene is 7700 nucleotides...
Question 8 (1 point) The primary RNA transcript of the chicken ovalbumin gene is 7700 nucleotides long, but the mature mRNA that is translated on the ribosome is 1872 nucleotides long. This size difference occurs primarily as a result of: O addition of the poly A tail O removal of exons O splicing O addition of the 5' cap Question 7 (1 point) Which of the following recognizes the promoter region of a gene in E. coli allowing RNA polymerase...
need to know correct answers 26. B. Which of the following enzymes is associated with the...
need to know correct answers
26. B. Which of the following enzymes is associated with the repression of transcription? methyl transferase DNA polymerasex acetyl transferase histone kinase none of the above Section 2 - True/False (2 points each) 27. TFIIB regulates tissue or cell type-specific transcription 28._1 Eukaryotes have three different RNA polymerases that each can transcribe non-protein coding genes. 29. T The P site of the ribosome refers to peptidyl. be For T heoph UND 30._F_The input genetic material...
3. Which of the following is not a good example of a housekeeping protein in eukaryotic...
3. Which of the following is not a good example of a housekeeping protein in eukaryotic cells? a)DNA polymerase b)histones c)RNA polymerase 4)hemoglobin Explanation: 4. Which of the following statements about histones is true? a. Histones activate transcription when bound to the promoter, b. Although RNA polymerase can access DNA packed around histones, the general transcription factors and transcriptional regulators cannot. c. Histone acetyltransferases affect transcription by adding acetyl groups to histones and altering chromatin structure to allow accessibility to...
on and 6. Draw the same Eukaryotic transcript after splicing has removed the m label the...
on and 6. Draw the same Eukaryotic transcript after splicing has removed the m label the remaining parts. 7. Describe the roles of the following features involved in Eukaryotic transcription: TATA Binding Protein General Transcription Factors Polymerase II 8. In Eukaryotic transcription, which happens first? A. The General Transcription Factors are recruited, and the Preinitiation complex (PIC) is assembled. B. The TBP binds the promoter 9. Describe the carboxy terminal domain (CTD) of RNA polymerase II and two of its...
Looking at the diagram of transcription in eukaryotes and using the
information provided, how could the expression of lactase RNA be
turned on and off by transcription factors, activators and
repressors?
Styles Font Paragraph Activators bind to genes at Rapressors bind to genes seauences and at shaoser sequences and The expression of RNA in eukaryotes is initiated by the binding of basal transcription factors to the promoter sequence of a gene. This leads to the recruitment of RNA polymerase to...
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....
Question 15 Not yet answered Which of the following is TRUE about eukaryotic enhancers: An enhancer Points out of 2.50 P Flag question Select one: O a. Is a DNA sequence that can be far away from the promoter and where transcriptional activators bind O b. Is an operator DNA sequence where the Mediator complex binds o c. Is a DNA sequence where the general transcription factors bind O d. Is a protein that binds at the promoter and activates...
Question 8 (1 point) The primary RNA transcript of the chicken ovalbumin gene is 7700 nucleotides long, but the mature mRNA that is translated on the ribosome is 1872 nucleotides long. This size difference occurs primarily as a result of: O addition of the poly A tail O removal of exons O splicing O addition of the 5' cap Question 7 (1 point) Which of the following recognizes the promoter region of a gene in E. coli allowing RNA polymerase...
need to know correct answers
26. B. Which of the following enzymes is associated with the repression of transcription? methyl transferase DNA polymerasex acetyl transferase histone kinase none of the above Section 2 - True/False (2 points each) 27. TFIIB regulates tissue or cell type-specific transcription 28._1 Eukaryotes have three different RNA polymerases that each can transcribe non-protein coding genes. 29. T The P site of the ribosome refers to peptidyl. be For T heoph UND 30._F_The input genetic material...
3. Which of the following is not a good example of a housekeeping protein in eukaryotic cells? a)DNA polymerase b)histones c)RNA polymerase 4)hemoglobin Explanation: 4. Which of the following statements about histones is true? a. Histones activate transcription when bound to the promoter, b. Although RNA polymerase can access DNA packed around histones, the general transcription factors and transcriptional regulators cannot. c. Histone acetyltransferases affect transcription by adding acetyl groups to histones and altering chromatin structure to allow accessibility to...
on and 6. Draw the same Eukaryotic transcript after splicing has removed the m label the remaining parts. 7. Describe the roles of the following features involved in Eukaryotic transcription: TATA Binding Protein General Transcription Factors Polymerase II 8. In Eukaryotic transcription, which happens first? A. The General Transcription Factors are recruited, and the Preinitiation complex (PIC) is assembled. B. The TBP binds the promoter 9. Describe the carboxy terminal domain (CTD) of RNA polymerase II and two of its...
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