CTCF is a cis-regulatory element that acts as a silencer. (T/F)
CTCF is a cis-regulatory element that acts as a silencer. (T/F)
Homework Answers
Answer
False
CTCF is trans -regulatory element.. It is also known as 11-zinc finger protein which is transcription factor encoded by CTCF gene in humans. This transcription factor also known as CCCTC-binding factor. This transcription factor thought be a primary part of insulator which suppresses the interaction between promoter and enhancers.
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An activator regulatory protein… a. Is a cis-acting regulatory element b. Recruits RNA polymerase to the...
An activator regulatory protein… a. Is a cis-acting regulatory element b. Recruits RNA polymerase to the promoter c. Prevents RNA polymerase from binding the promoter d. Is involved in negative regulatory control
Provide two examples of cis-acting regulatory elements.
Provide two examples of cis-acting regulatory elements.
List cis regulatory regions and transacting factors in lac operon?
List cis regulatory regions and transacting factors in lac operon?
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In the GAL gene system, __________ are cis-acting regulatory elements, and __________ protein is a trans-acting regulatory protein.
True/False (6 pts) *if false, correct the statement 1. (True/False) The histone octamer forms a protein...
True/False (6 pts) *if false, correct the statement 1. (True/False) The histone octamer forms a protein core around which the double stranded DNA is wound. 2. (True/False) Histones are highly variable proteins across organisms. 3. (True/False) The interface between DNA and histone has multiple contacts. 4. (True/False) CTCF is a cis-regulatory element that acts as a silencer. 5. (True/False) The modification cytosine to 5-methyl cytosine is associated with gene inactivation and reduced gene expression. 6. (True/False) HATs and HDACs are...
What are “cis-regulatory elements,” “trans-regulatory factors,” “exons,” “introns,” “untranslated regions,” “proximal promoters,” “enhancers,” “repressors,” "activators,” “caps,”...
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How do enhancers differ from promoters as cis-acting regulatory sequences in eukaryotes?
How do enhancers differ from promoters as cis-acting regulatory sequences in eukaryotes?
Choose the cis-elements. Click on the cis regulatory elements only. Control of eukaryotic gene expression (gene...
Choose the cis-elements. Click on the cis regulatory elements only. Control of eukaryotic gene expression (gene control) can occur at multiple levels from DNA accessibility to post-translational changes to polypeptides/proteins. Silencers, repressors, transcription factors, activators, enhancers, insulators histone acetyltransferases (HATS), histone deacetylases (HDACs) histone remodellers and DNA methyltransferases all play a role in gene control.
34. Enhancer or Silencer element of DNA may be physically far away from promoter region. Yet,...
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1. Let f(x) group, and explicitly how each element of the group acts on the splitting field. Justify your claim a) (5&#...
1. Let f(x) group, and explicitly how each element of the group acts on the splitting field. Justify your claim a) (5') the Galois group of f(x) over Q. b) (5') the Galois group of f(x) over c) (5') the Galois group of f() over F3. = x8 - 1. For each of the following, write down the isomorphism type of the Galois Q)
1. Let f(x) group, and explicitly how each element of the group acts on the splitting...
True/False (6 pts) *if false, correct the statement 1. (True/False) The histone octamer forms a protein core around which the double stranded DNA is wound. 2. (True/False) Histones are highly variable proteins across organisms. 3. (True/False) The interface between DNA and histone has multiple contacts. 4. (True/False) CTCF is a cis-regulatory element that acts as a silencer. 5. (True/False) The modification cytosine to 5-methyl cytosine is associated with gene inactivation and reduced gene expression. 6. (True/False) HATs and HDACs are...
How do enhancers differ from promoters as cis-acting regulatory sequences in eukaryotes?
Choose the cis-elements. Click on the cis regulatory elements only. Control of eukaryotic gene expression (gene control) can occur at multiple levels from DNA accessibility to post-translational changes to polypeptides/proteins. Silencers, repressors, transcription factors, activators, enhancers, insulators histone acetyltransferases (HATS), histone deacetylases (HDACs) histone remodellers and DNA methyltransferases all play a role in gene control.
34. Enhancer or Silencer element of DNA may be physically far away from promoter region. Yet, they can affect transcription rate. Explain how they can do it from a distance (3 pt). 35. List three differences of prokaryotic and eukaryotic transcription and transcripts (3 pt). 36. List (no explanation necessary) three major post-transcriptional modifications of eukaryotic mRNA (3 pt). 37. Explain two different transcription termination (4 pt)
1. Let f(x) group, and explicitly how each element of the group acts on the splitting field. Justify your claim a) (5') the Galois group of f(x) over Q. b) (5') the Galois group of f(x) over c) (5') the Galois group of f() over F3. = x8 - 1. For each of the following, write down the isomorphism type of the Galois Q)
1. Let f(x) group, and explicitly how each element of the group acts on the splitting...
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