TBP-associated factors proteins bind to promoters to
help recruit RNA polymerase and initiate transcription.
a. true.
b. false
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TBP-associated factors proteins bind to promoters to help recruit RNA polymerase and initiate transcription. a. true....
During embryonic development, there are many promoters where RNA Polymerase II is bound, but not allowed to initiate transcription. These are called poised promoters. Are the transcription factors that initiate expression of poised promoters more likely to modify chromatin or interact directly with the polymerase? Justify your answer
Classify each statement according to whether it applies to general transcription factors only, specific transcription factors only, both, or neither These transcription factors are found in both prokaryotes and eukaryotes. These transcription factors are proteins. These transcription factors form part of the transcription complex. One of these transcription factors binds directly to the TATA box in the core promoter. These transcription factors bind to the operator. These transcription factors bind to enhancer sequences that may be distant from the promoter....
on Select all characteristics of proteins that are positive regulators of transcription Check All That Apply Positive regulators of transcription never need to associate with any other molecule to bind DNA. O Positive regulators help recruit ribosomes. O Positive regulatory proteins can affect only one operon. O Positive regulators often bind effectors before binding with DNA. O Activators regulate some degradative pathways. O Positive regulators help recruit RNA polymerase. Prey e to search
An enhancer is NOT associated with: Prokaryotes Transcription RNA Polymerase II Transcription activator
Why does E. coli have several different sigma factors? A.They allow RNA polymerase I, RNA polymerase II and RNA polymerase III to bind to different promoters. B.They allow the different subunits of the RNA polymerase holoenzyme to bind to each other. C.They are redundant in case one is mutated. They all perform the same function. D.One is needed to transcribe mRNA. A second is needed to transcribe tRNA. And a third is needed to transcribe rRNA. E.They are used if...
Which of the following is true of transcription, but not replication? Select one: a. It requires polymerase to catalyze the process. b. All of these are true for both transcription and replication. c. It requires promoters to initiate the process. d. It requires a primer to initiate the process. Clear my choice Question 6 Not yet answered Marked out of 1.00 Flag question Question text Which of the following is/are true of promoters? Select one: a. they contain both exons...
Transcription initiation in eukaryotes requires the coordinated action of many proteins. Which protein is responsible for recruitment of splicing factors to the C- terminal of RNA Polymerase? (a) snRNP (b) TFIID (c) TBP (d) TFIIH (e) TFIIA
The segments of DNA where transcription begins have a binding site for RNA polymerase. These segments are known as Select one: O A. promoters. B. sigma. O C. initiation factors. O D. the holoenzyme.
4. A protein that works with RNA polymerase in prokaryotes to initiate transcription (two words, no spaces). 5. Prokaryotic transcription and translation are events. 7. The DNA used as a template molecule during transcription is an molecule. 8. The leading strand of DNA is synthesized 9. The sequence of DNA found 35 base pairs upstream from the start of a gene in prokaryotes
Which subunit of RNA polymerase is absolutely required to initiate transcription? O O OOO Answers A-D A Alpha B Sigma c Omega D Beta 8 OF 12 QUESTIONS VERSION 3.8.1 Previous Next