GCD 3022 Exam III Naoko Shima UMN Content Questions
With Complete Solutions
A corepressor ( a type of SEM that decreases transcription) may
bind to a repressor and (. ) in binding to DNA Correct Answers
assist
a nucleosome free region (NFR) is found near the Correct
Answers beginning and the end of most eukaryotic genes
A regulatory protein that decreases the rate of transcription is
termed a Correct Answers repressor
A regulatory protein that increases the rate of transcription is
termed an Correct Answers activator
A repressor is a __________ that _________ transcription.
Correct Answers regulatory protein, inhibits
A typical plasmid vector contains Correct Answers an origin of
replication, an antibiotic resistant gene, and a unique restriction
(cloning) site.
Activators and repressors may be controlled by Correct
Answers • the binding of small effector molecules
• protein-protein interactions
• covalent modifications
activators bind to a sequence called an Correct Answers
enhancer
,an inducer may bind to a repressor and (. ) them from binding to
DNA Correct Answers prevent
an inducer may bind to an activator and (. ) them in binding to
DNA Correct Answers assist
an operon encodes a (. ) mRNA, which is an RNA that contains
the sequences of two or more genes Correct Answers
polycistronic
ATP dependent chromatin remodeling is carried out by diverse
multi-protein machines that reposition/restrucutre... Correct
Answers nucleosomes
ATP- dependent chromatin remodeling refers to dynamic
changes in Correct Answers chromatin structure
Binding of ( ) to ( ) decreases the rate of transcription.
Group of answer choices Correct Answers repessor, silencer
Binding of ( ) to ( ) increases the rate of transcription. Correct
Answers activator, enhancer
Chromatin remodeling complexes change chromatin structure in
one of 3 ways: Correct Answers • Change in the position of
nucleosomes
• Eviction of histone octamers
• Change in the composition of nucleosomes
chromatin that is in an open conformation is Correct Answers
easier to transcribe
, Combinatorial control refers to the phenomenon that Correct
Answers the combination of many factors determines the
expression of any given gene.
CREB proteins bind to what? Correct Answers CRE- cAMP
response element
DNA methylation is carreid out by which enzyme? Correct
Answers DNA methyltransferase
DNA methylation is the Correct Answers attachment of methyl
groups
DNA methylation may inhibit transcription by Correct Answers
-preventing the binding of an activator protein
-recruiting proteins that compact the chromatin
DNA Methylation usually (. ) transcription Correct Answers
inhibits
Do coactivators bind to the DNA? Correct Answers No, they
bind to the activator/TFIID
During both repression and activation via mediator, where is the
TFIID bound? Is it bound to anything at all? Correct Answers
In both cases- repression and activation- TFIID is bound to the
core promoter.
With Complete Solutions
A corepressor ( a type of SEM that decreases transcription) may
bind to a repressor and (. ) in binding to DNA Correct Answers
assist
a nucleosome free region (NFR) is found near the Correct
Answers beginning and the end of most eukaryotic genes
A regulatory protein that decreases the rate of transcription is
termed a Correct Answers repressor
A regulatory protein that increases the rate of transcription is
termed an Correct Answers activator
A repressor is a __________ that _________ transcription.
Correct Answers regulatory protein, inhibits
A typical plasmid vector contains Correct Answers an origin of
replication, an antibiotic resistant gene, and a unique restriction
(cloning) site.
Activators and repressors may be controlled by Correct
Answers • the binding of small effector molecules
• protein-protein interactions
• covalent modifications
activators bind to a sequence called an Correct Answers
enhancer
,an inducer may bind to a repressor and (. ) them from binding to
DNA Correct Answers prevent
an inducer may bind to an activator and (. ) them in binding to
DNA Correct Answers assist
an operon encodes a (. ) mRNA, which is an RNA that contains
the sequences of two or more genes Correct Answers
polycistronic
ATP dependent chromatin remodeling is carried out by diverse
multi-protein machines that reposition/restrucutre... Correct
Answers nucleosomes
ATP- dependent chromatin remodeling refers to dynamic
changes in Correct Answers chromatin structure
Binding of ( ) to ( ) decreases the rate of transcription.
Group of answer choices Correct Answers repessor, silencer
Binding of ( ) to ( ) increases the rate of transcription. Correct
Answers activator, enhancer
Chromatin remodeling complexes change chromatin structure in
one of 3 ways: Correct Answers • Change in the position of
nucleosomes
• Eviction of histone octamers
• Change in the composition of nucleosomes
chromatin that is in an open conformation is Correct Answers
easier to transcribe
, Combinatorial control refers to the phenomenon that Correct
Answers the combination of many factors determines the
expression of any given gene.
CREB proteins bind to what? Correct Answers CRE- cAMP
response element
DNA methylation is carreid out by which enzyme? Correct
Answers DNA methyltransferase
DNA methylation is the Correct Answers attachment of methyl
groups
DNA methylation may inhibit transcription by Correct Answers
-preventing the binding of an activator protein
-recruiting proteins that compact the chromatin
DNA Methylation usually (. ) transcription Correct Answers
inhibits
Do coactivators bind to the DNA? Correct Answers No, they
bind to the activator/TFIID
During both repression and activation via mediator, where is the
TFIID bound? Is it bound to anything at all? Correct Answers
In both cases- repression and activation- TFIID is bound to the
core promoter.
