The 'conserved proteins Quiz' assesses knowledge on gene expression, RNA types, and their roles. It covers topics like siRNA, RNA-DNA hybrids, rRNA processing, and sigma factors in bacterial gene expression, enhancing understanding of molecular and cellular biology.
Transcription, prokaryotic only.
Replication, prokaryotic only.
Replication, eukaryotic only.
Replication and transcription, both eukaryotic and prokaryotic.
Translation, both eukaryotic and prokaryotic.
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Eukaryotic rRNA genes are processed in the nucleolus.
Eukaryotic genes often contain regions that are transcribed and later excised from the RNA, called exons.
RNA catalysts are called repressors.
An AT-rich region found in eukaryotic promoters is called the AUG box.
Prokaryotic genetic units called introns typically contain genes with related functions.
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Introns
Operons
Exons
Promoters
AUG box
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Prokaryotic mRNAs
Prokaryotic rRNAs
Eukaryotic tRNAs
Eukaryotic mRNAs
Eukaryotic rRNAs
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Sigma factors determine which RNA polymerase is used during transcription.
Sigma factors mediate the excision of intronic sequences.
A cell's complement of sigma factors determines which of its genes are transcribed.
Sigma factors bind to the TATA box and initiate transcription.
None of the rest.
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A promoter sequence known as sigma factor.
A single promoter sequence.
A promoter sequence known as the Rho factor.
Different types of promoters.
None of the rest.
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RNAP binds to the sigma factor.
RNAP binds to the initiator (Inr) element.
TATA-binding protein binds to the TATA box.
RNAP binds to the Rho factor.
None of the rest.
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Cytosol, nucleosome.
Cytosol, nucleus.
Nucleosome, cytosol.
Nucleus, nucleosome.
Nucleus, cytosol.
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Promoters
TBP
SMURFs
SnRNAs
TAFs
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Initial binding of the promoter
Conversion from the pre-initiation (closed) complex to the initiation (open) complex
Progression from initiation to elongation
Termination of transcription
None of the rest.
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Chromatin-remodeling
Histone methylation
Apoptosis
Gene silencing
Coactivation
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In the presence of allolactose, the protein binds the operator inhibiting transcription.
In the absence of allolactose, the protein binds the operator inhibiting transcription.
In the presence of allolactose, the protein binds the operator enhancing transcription.
In the absence of allolactose, the protein binds the operator enhancing transcription.
None of the rest.
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Euchromatin
Heterochromatin
Cytosol
Endoplasmic reticulum
Liposome
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RNA polymerase uses its sigma factor to bind to the TATA box and initiate transcription.
DNA polymerase uses its alpha-2 factor to bind to the TATA box and recruits RNA polymerase to initiate transcription.
The TATA box is not found in eukaryotes and is found only in prokaryotic promoter regions.
The TATA-binding protein (TBP), a subunit of TFIIB binds the TATA box and aids in transcription initiation.
The TATA-binding protein (TBP), a subunit of TFIID binds the TATA box and aids in transcription initiation.
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Use siRNA to target the mRNA transcript encoding the aberrant protein and stop its production.
Add Neomycin, an aminoglycoside antibiotic that functions by halting protein synthesis within a cell, to your culture.
Add lactose to your cells to change their metabolic profile by activating the lac operon.
Use an inhibitor of cellular DNA polymerase to halt cellular transcription.
You cannot reduce expression of a protein within a cell.
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A single protein because it is monocistronic.
A single protein because it is polycistronic.
Multiple proteins because it is monocistronic.
Multiple proteins because it is polycistronic.
DNA.
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It makes use of an RNA polymerase enzyme, which seeks out and binds promoters using its sigma factor.
It produces a polycistronic mRNA allowing transcription and proteins synthesis to occur simultaneously.
It is carried out in the cytosol by components of the RISC complex and the Dicer protein.
It involves transcription factors, which facilitate transcription through protein-DNA and protein-protein interactions.
It is coupled to translation.
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Transcription
Splicing
Translation
Replication
Transpeptidation
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MRNA
TRNA
NcRNA
RNA
DNA
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Degree of DNA methylation
Presence of variant histones
Methylation of the promoters
Pattern of histone modification
The histone code
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TFIIA
TFIIB
TFIID
TFIIG
TFIIF
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DNA
RNA polymerase
MRNA
Template strand
NcRNA
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Exon
Intron
Telomere
Promoter
RNA polymerase
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Acetylation
Methylation
Phosphorylation
Amidation
Formylation
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Quiz Review Timeline (Updated): Mar 20, 2023 +
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