Podcast
Questions and Answers
Which of the following is a component of the lac operon in prokaryotes?
Which of the following is a component of the lac operon in prokaryotes?
- lac Repressor (correct)
- cis-Acting Regulatory Elements
- Transactivators
- DNA Methylation
What is the function of cAMP in the regulation of transcription in prokaryotes?
What is the function of cAMP in the regulation of transcription in prokaryotes?
- It binds to cis-acting regulatory elements
- It activates transrepressors
- It promotes DNA methylation
- It stimulates transcription of the lac operon (correct)
Which of the following is involved in the epigenetic regulation of transcription in eukaryotes?
Which of the following is involved in the epigenetic regulation of transcription in eukaryotes?
- Deacetylation of Histones (correct)
- Antibiotics
- Assembly of Pre-initiation Complex
- DNase I Hypersensitive Sites
Which of the following is a cis-acting regulatory element that is located closest to the transcription start site of a gene?
Which of the following is a cis-acting regulatory element that is located closest to the transcription start site of a gene?
Which of the following is a cis-acting regulatory element that can activate transcription independent of distance from the core promoter?
Which of the following is a cis-acting regulatory element that can activate transcription independent of distance from the core promoter?
Which of the following is a trans-acting factor involved in the regulation of transcription?
Which of the following is a trans-acting factor involved in the regulation of transcription?
Which of the following is a functional domain of an activator protein?
Which of the following is a functional domain of an activator protein?
Which type of regulation is described in the lac operon model?
Which type of regulation is described in the lac operon model?
What is the function of the lac repressor protein?
What is the function of the lac repressor protein?
What is the role of cAMP in the positive regulation of the lac operon?
What is the role of cAMP in the positive regulation of the lac operon?
Which statement is true about the regulation of the lac operon in the presence of both lactose and glucose?
Which statement is true about the regulation of the lac operon in the presence of both lactose and glucose?
Which of the following is true about zinc fingers?
Which of the following is true about zinc fingers?
What happens when a steroid hormone binds to the ligand binding domain of its receptor?
What happens when a steroid hormone binds to the ligand binding domain of its receptor?
What is the role of DNA methylation in gene transcription?
What is the role of DNA methylation in gene transcription?
What is the effect of histone acetylation on chromatin structure?
What is the effect of histone acetylation on chromatin structure?
Which enzyme is responsible for deacetylating lysine residues in histones?
Which enzyme is responsible for deacetylating lysine residues in histones?
What is the function of coactivator complexes in gene regulation?
What is the function of coactivator complexes in gene regulation?
What is the role of DNase I hypersensitive sites in gene regulation?
What is the role of DNase I hypersensitive sites in gene regulation?
Which of the following is NOT a mechanism of epigenetic regulation of chromatin structure?
Which of the following is NOT a mechanism of epigenetic regulation of chromatin structure?
Which domain of a repressor protein recruits and/or activates corepressors and other mediator proteins to modify chromatin structure and repress assembly of a pre-initiation complex on the core promoter of a target gene?
Which domain of a repressor protein recruits and/or activates corepressors and other mediator proteins to modify chromatin structure and repress assembly of a pre-initiation complex on the core promoter of a target gene?
Which type of repressor protein binds directly to an activator and prevents it from activating transcription?
Which type of repressor protein binds directly to an activator and prevents it from activating transcription?
What is the function of the dimerization domain in specific transcription factors?
What is the function of the dimerization domain in specific transcription factors?
Which family of specific transcription factors is enriched in basic amino acids (Lys and Arg) and binds directly to a consensus sequence in a cis-acting element such as an enhancer?
Which family of specific transcription factors is enriched in basic amino acids (Lys and Arg) and binds directly to a consensus sequence in a cis-acting element such as an enhancer?
What is the function of a-Amanitin?
What is the function of a-Amanitin?
Which of the following is NOT a mechanism of epigenetic regulation of chromatin structure?
Which of the following is NOT a mechanism of epigenetic regulation of chromatin structure?
Which of the following is a trans-acting factor involved in the regulation of transcription?
Which of the following is a trans-acting factor involved in the regulation of transcription?
Which of the following is a cis-acting regulatory element that can activate transcription independent of distance from the core promoter?
Which of the following is a cis-acting regulatory element that can activate transcription independent of distance from the core promoter?
Which of the following is a trans-acting factor involved in the regulation of transcription?
Which of the following is a trans-acting factor involved in the regulation of transcription?
Which of the following is a functional domain of an activator protein?
Which of the following is a functional domain of an activator protein?
Which of the following is a consensus binding sequence in a cis-acting element for the specific transcription factor Myc?
Which of the following is a consensus binding sequence in a cis-acting element for the specific transcription factor Myc?
Which of the following is a mechanism of chromatin remodeling?
Which of the following is a mechanism of chromatin remodeling?
Which of the following is a function of lncRNAs in gene regulation?
Which of the following is a function of lncRNAs in gene regulation?
Which antibiotic prevents the formation of the first phosphodiester bond by RNA Polymerase?
Which antibiotic prevents the formation of the first phosphodiester bond by RNA Polymerase?
Which of the following is a function of HDACs in gene regulation?
Which of the following is a function of HDACs in gene regulation?
Which of the following is a key component of the lac operon in prokaryotes?
Which of the following is a key component of the lac operon in prokaryotes?
Which of the following is NOT a mechanism by which a repressor can inhibit transcription of a target gene?
Which of the following is NOT a mechanism by which a repressor can inhibit transcription of a target gene?
Which of the following families of specific transcription factors is enriched in basic amino acids (Lys and Arg) and binds directly to a consensus sequence in a cis-acting element such as an enhancer?
Which of the following families of specific transcription factors is enriched in basic amino acids (Lys and Arg) and binds directly to a consensus sequence in a cis-acting element such as an enhancer?
What is the function of DNase I hypersensitive sites in gene regulation?
What is the function of DNase I hypersensitive sites in gene regulation?
Which of the following is a covalent modification of histones that can regulate transcription of specific genes?
Which of the following is a covalent modification of histones that can regulate transcription of specific genes?
What is the role of DNA methylation in gene transcription?
What is the role of DNA methylation in gene transcription?
Which of the following is a cis-acting element that is located closest to the transcription start site of a gene?
Which of the following is a cis-acting element that is located closest to the transcription start site of a gene?
What is the function of the dimerization domain in specific transcription factors?
What is the function of the dimerization domain in specific transcription factors?
Which domain of a repressor protein is responsible for recruiting and/or activating corepressors and other mediator proteins to modify chromatin structure and repress assembly of a pre-initiation complex on the core promoter of a target gene?
Which domain of a repressor protein is responsible for recruiting and/or activating corepressors and other mediator proteins to modify chromatin structure and repress assembly of a pre-initiation complex on the core promoter of a target gene?
Which type of repressor protein binds directly to an activator and prevents it from activating transcription?
Which type of repressor protein binds directly to an activator and prevents it from activating transcription?
Which family of specific transcription factors is enriched in basic amino acids (Lys and Arg) and binds directly to a consensus sequence in a cis-acting element such as an enhancer?
Which family of specific transcription factors is enriched in basic amino acids (Lys and Arg) and binds directly to a consensus sequence in a cis-acting element such as an enhancer?
What is the function of the dimerization domain in specific transcription factors?
What is the function of the dimerization domain in specific transcription factors?
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