MCB 150 unit 4 Questions With Complete Solutions
In Iron suppressing, Does IRE or IRP bind to the hairpin
structure
IRP
Does IRP unbind when their is high iron levels?
yes
Is IRP blocking normally?
yes
What makes GTFs bind to the TATA easier
Gene specific transcription factors
What happens after the GTF binds to the TATA site?
The GTF promotes assembly of the preinitiation complex
What recruits histone modifiers or chromatin remodeling
structures
activators/repressors
How can chromatin remodeling structures remodel DNA
Evict histones
Recruit histone modifying complexes
Replace histones with histone variants
What is the core promoter
The DNA sequence that promotes DNA transcription
, Does metalation or acetylation tighten the DNA?
methylation
can patterns of DNA methylation and histone modification be
passed down?
yes
is the default state for transcription on or off?
off
What is a regulon
A large set of genes that are controlled by one thing
What is a virus made of
Nucleic acids
capsid
a few enzymes
sometimes an envelope
what are the three ways a virus can get into a cell
injection
endocytosis
fusion
What is early gene expression
production of enzymes for replication
what is late gene expression
Making of capsid proteins and enzymes needed for release
how can viruses leave a cell
In Iron suppressing, Does IRE or IRP bind to the hairpin
structure
IRP
Does IRP unbind when their is high iron levels?
yes
Is IRP blocking normally?
yes
What makes GTFs bind to the TATA easier
Gene specific transcription factors
What happens after the GTF binds to the TATA site?
The GTF promotes assembly of the preinitiation complex
What recruits histone modifiers or chromatin remodeling
structures
activators/repressors
How can chromatin remodeling structures remodel DNA
Evict histones
Recruit histone modifying complexes
Replace histones with histone variants
What is the core promoter
The DNA sequence that promotes DNA transcription
, Does metalation or acetylation tighten the DNA?
methylation
can patterns of DNA methylation and histone modification be
passed down?
yes
is the default state for transcription on or off?
off
What is a regulon
A large set of genes that are controlled by one thing
What is a virus made of
Nucleic acids
capsid
a few enzymes
sometimes an envelope
what are the three ways a virus can get into a cell
injection
endocytosis
fusion
What is early gene expression
production of enzymes for replication
what is late gene expression
Making of capsid proteins and enzymes needed for release
how can viruses leave a cell
