the importance of regulatory elements and transcription factors to eukaryotic abd prokaryotic transcription ( GTF vs sigma factor )

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Casey DurganLv2

19 Feb 2019

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Related questions

1. Bacterial transcription termination VS. Eukaryotic transcription initiation

a. What is required for Rho-independent termination? How does each sequence feature contribute to the mechanism of termination?

b. What is required for Rho-dependent termination?

c. How does Rho differ from other helicases we discussed in Chapter 28? How is it similar?

d. Do you understand the difference between core promoter elements and regulatory elements? Do you understand the difference between core transcription factors and regulatory transcription factors?

e. What are the major features of the TATA-binding protein-DNA interaction? How does this interaction lead to dsDNA destabilization?

crimsoncicada20

What are the three processes in post-transcriptional processes that must be completed before transcripts can be translated in eukaryotes?

A.	Binding of snRNPs, addition of a poly A tail, splicing of introns
B.	Binding of snRNPs, transporting, synthesizing of ribose
C.	Capping, transporting, synthesizing of ribose
D.	Binding of snRNPs, capping, splicing
E.	Capping, splicing, addition of a poly A tail

Which of the following key differences between prokaryotic and eukaryotic transcription are TRUE? Check all that apply.

	A. prokaryotic transcription occurs in the cytoplasm, while eukaryotic transcription occurs in the nucleus
	B. eukaryotic transcription is carried out by 1 RNA polymerase, while prokaryotic transcription is carried out by 3 different RNA polymerases
	C. eukaryotic transcripts are processed, while prokaryotic transcripts are translated while transcription is still occurring
	D. prokaryotes have sigma factors for specificity of binding whereas eukaryotes have multiple general transcription factors
	E. prokaryotes have to worry about unpackaging the DNA for transcription, while eukaryotes have almost naked DNA not bound up by nucleosome

whitehippopotamus545

Prokaryotes don't have a nucleolus but still produce a lot ofribosomal RNAs. Transcription of prokaryotic rRNA mostly likelyinvolved which of the following transcription factors? WHY?

a) Sigma 28

b) Sigma 38

c) Sigma 70

d) TBP (TATA Binding Protein)