Regarding the efficient initiation of transcription by RNA polymerase II, which specific "upstream" signals appear to be involved?
A. |
TATA box sequences |
|
B. |
GGTTC |
|
C. |
TTTTAAAA |
|
D. |
any DNA sequence |
|
E. |
Pribnow box |
Ans. Option A is the correct answer.
EXPLANATIONS:- TATA box sequence is the region of the DNA sequence in the promoter region of the DNA to be transcribed. The TATA box is the part of the promoter sequence. It is the region where the RNA polymerase 2 binds to initiate the transcription process.
Regarding the efficient initiation of transcription by RNA polymerase II, which specific "upstream" signals appear to...
The process of DNA transcription: produces single stranded RNA complementary to the coding strand. requires RNA polymerase. is discontinuous. produces double stranded DNA. requires DNA polymerase III. Among the significant sites that many eukaryotic promoters contain is: a TATAAT box near –10. a TATA site near –30 to –100. a CATA site at the transcription start site. a Pribnow box. the Shine-Dalgarno sequence.
Transcription regulators control transcription by phosphorylating RNA polymerase. binding to specific sequences of DNA. binding to specific sequences of RNA. degrading mRNAs.
Can someone please help me answer these questions. Thank you! Eukaryotic transcription signals a) This drawing shows the placements of the four main sequences of the eukaryotic core promoter for RNA polymerase II. Identify each one and give a brief explanation b) Which sequences are used in a DPE-driven promoter? c) Which ones are used in a TATA-driven promoter? d) Please draw and describe the steps as the transcription factors work with eukaryotic RNA polymerase II to start transcription of...
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