How do enhancers differ from promoters?Enhancers do not bind RNA polymerase.Enhancers include the UP elementEnhancers bind the sigma (o) factorThere is no difference; these terms are synonymous

Transcription requires an enzyme called RNA polymerase that catalyses the transcription. Prokaryotic…

Answered: How do enhancers differ from promoters?…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Part A You were sequencing a region of 200 kb in Effrenium voratum (a member of the family Symbiodiniaceae) and you found two genes, an insulator, and two enhancers, as shown below. Gene A Promoter gene A Enhancer I Enhancer I| Insulator Promoter gene b Gene B Q: What would happen if you do some gene editing and you move the insulator between both enhancers? The newly positioned insulator allows enhancer II to activate gene B transcription The newly positioned insulator allows enhancer I to hyperactivate gene B transcription The new positioning of the insulator prevents gene A expression It will be unaltered The newly positioned insulator prevents enhancer II from stimulating the transcription of gene B
Enhancers and silencers increase or decrease transcription levels from the distance bind to the RNA polymerase are essential for chain elongation are essential for termination
Pls help ASAP
Match whether the protein binds directly or indirectly (assuming it does) to DNA and whether to the enhancer or promoter. Items may be matched to multiple choices and not all choices will be used. 1. Directly to enhancer Repressors 2. Directly to promoter Activators 3. Indirectly to enhancer TBP associated factors 4. Indirectly to promoter >
All may be RNA polymerase II promoter constituents EXCEPT: response elements or GC box a TATA box upstream the transcription start site. where silencers bind repressors. the core element where general transcription factors (GTFs) bind.
IIVY is a LysR regulator, and it helps control transcription of a neighboring gene, ilvC. IlvY can either bend the DNA and block RNAP's access to ilvC's -35 promoter site, or it can allow access to the ilvC -35 site, thereby promoting ilvC transcription. What determines whether llvY is repressing or activating transcription from the ilvC promoter? The presence of the co-inducer acetolactate - acetolactate binds to llvY and changes llvY's shape such that it doesn't block the -35 of the ilvC promoter. IlvY represses ilvC transcription when the IlvC protein is bound to llvY, and it activates ilvC transcription when the lvC protein is not present to bind to llvY. The presence of the co-inducer valine - when valine is present, it binds llvY and causes llvY to repress transcription from the ilvC promoter. The presence of the co-inducer acetolactate - acetolactate induces negative supercoiling at the ilvC promoter, which represses ilvC transcription.
The siRNA and miRNA pathways share many similarities and also have some differences. Which of the following is true about these two noncoding RNA classes in regulating gene expression? O Both of them utilize the internally generated RNAS as sources to produce the short regulatory RNAS O Both of them need Dicer to process the long RNAS into short double-strnaded RNAS Both of them required perfect match between the short noncoding RNAS to the MRNAS Both of them end up with complete degradation of the target mRNAs
You identify a fragment of DNA that, when fused to a GFP reporter, can express GFP in a mouse's eyes. You suspect some piece of that fragment represents a promoter and another piece represents an enhancer. You want to know which is which. What experiments do you perform to see which piece is a promoter and which is an enhancer? Hint: remember the important differences between promoters and enhancers. Then build constructs that test those differences.
Why are bacterial polyribosomes formed co-transcriptionally? Check all that apply. Bacterial ribosomal subunits cannot enter the nucleus. Bacterial ribosomal subunits can enter the nucleus. Bacterial ribosomal subunits cannot enter the nucleoid. Bacterial ribosomal subunits can enter the nucleoid. Bacterial ribosomal subunits cannot bind mRNAs before transcription termination. Bacterial ribosomal subunits can bind mRNAs before transcription termination.
What is an enhancer? What do these sequences contain bound to it? Do enhancers have to be near promoters?

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How do enhancers differ from promoters? Enhancers do not bind RNA polymerase. Enhancers include the UP element Enhancers bind the sigma (o) factor There is no difference; these terms are synonymous