TRANSCRIPTIONAL CONTROL OF GENE EXPRESSION CAN INVOLVE A. BINDING OF HORMONE-RECEPTOR COMPLEXES TO ENHANCERS B. REPRESSOR-MRNA...
TRANSCRIPTIONAL CONTROL OF GENE EXPRESSION CAN INVOLVE
A. BINDING OF HORMONE-RECEPTOR COMPLEXES TO ENHANCERS
B. REPRESSOR-MRNA BINDING
C. EXON MUTATIONS
D. ALTERNATIVE POLYADENYLATION AND SPLICING PATHWAYS
Homework Answers
Right option is A.
Because binding of steroid hormone to the receptor will lead to activation of these receptor. These receptor has ligand binding domain and DNA binding domain. DNA binding domain interact with enhancer by two zinc atom. This will lead to looping of DNA and enhancer binding to the promoter which allow RNA polymerase to bind to the promoter. It helps in transcription of mRNA.
that's why right option is A.
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TRANSCRIPTIONAL CONTROL OF GENE EXPRESSION CAN INVOLVE
A. BINDING OF HORMONE-RECEPTOR COMPLEXES TO ENHANCERS
B. REPRESSOR-MRNA...
In eukaryotes, post-transcriptional control of gene regulation may involve Question 19 options: a. alternative mRNA splicing....
In eukaryotes, post-transcriptional control of gene regulation may involve Question 19 options: a. alternative mRNA splicing. b. alternative mRNA splicing, control of nuclear export of mRNAs to the cytoplasm, and differential mRNA degradation. c. control of nuclear export of mRNAs to the cytoplasm. d. differential mRNA degradation.
In its active form it turns of gene expression. a.) Transcriptional repressor b.) Transcriptional activator c.)...
In its active form it turns of gene expression. a.) Transcriptional repressor b.) Transcriptional activator c.) miRNA d.) tRNA e.) terminator
Q1)Which of the following is not involved in control of gene expression in eukaryotes? A. Change...
Q1)Which of the following is not involved in control of gene expression in eukaryotes? A. Change to DNA sequence. B. Alternative splicing. C. Export of mRNA from the nucleus. D. Transcriptional repression. E. Destruction of mRNA Q2) Trans-acting regulators of gene expression include? A. promoters. B. histone deacetylases C. introns D. silencers E. the TATA box. Q3) Gene regulation in eukaryotes often involves which of the following, which are not also used by prokaryotes? A.RNA polymerase B.Transcription factors C.Histone modification...
Which is the factor(s) involved in the regulation of gene activity? Select one: a. Transcriptional repressor/activator...
Which is the factor(s) involved in the regulation of gene activity? Select one: a. Transcriptional repressor/activator proteins, which bind to the operator/enhancer sequence regions. b. SAM binding to a riboswitch mRNA. c. Alterations in mRNA conformations by SAM during the transcription. d. All of these. e. None of these.
Most steroid hormone receptors are transcription _______ proteins. The receptor steroid complexes bind to the _________...
Most steroid hormone receptors are transcription _______ proteins. The receptor steroid complexes bind to the _________ sequences located in 5’-upstream regions of the target genes, to up-regulate the gene activities. Select one: a. activator;;;;;;promoter b. repressor;;;;;;promoter c. activator;;;;;;enhancer d. repressor;;;;;;enhancer e. None of these
QUESTION 1 Which of the following statements regarding splicing is FALSE? A) The length...
QUESTION 1 Which of the following statements regarding splicing is FALSE? A) The length of introns determines the efficiency of splicing. B) Many human neurological disorders are caused by splicing errors and/or mutations in splicing factors. C) Splicing requires the action of a variety of snRNAs that direct the transesterification reactions. D) Splicing is dictated by sequence features in pre-mRNA transcripts QUESTION 2 Which of the following mRNA processing factors does NOT associate with...
B. (10pts) Gene expression can be regulated in many ways. In the gene below, each letter...
B. (10pts) Gene expression can be regulated in many ways. In the gene below, each letter represents a different mutation. Indicate which mutation would: (Use each letter only once.) trigger non-sense mediated decay increase transcript stability result in aberrant splicing reduce mRNA expression levels alter ADAR RNA editing promoter D — transcribed region intron A intron E exon- transcription factor binding sites exon spliced mRNA T 5'UTR CDS 3'UTR start codon stop codon C. (8pts) UAU encodes the amino acid...
QUESTION 19 19. The following is an example of posttranslational regulation of gene expression: A. A....
QUESTION 19 19. The following is an example of posttranslational regulation of gene expression: A. A. Control of transcription by a repressor B. A. Control of transcription by an inducer. Oc. A. Alternative splicing of RNA. D. A. Controlling transport of mRNA from the nucleus. E. A. Phopsorylation of protein.
Match each term associated with genes and control of gene expression with the appropriate description. A...
Match each term associated with genes and control of gene expression with the appropriate description. A transcriptional unit" that consists of promoter multiple genes under the control of a single regulatory element. A transcriptional regulatory protein (prokaryotic or eukaryotic) which works by turning on or increasing gene transcription. activator The region of a gene to which RNA polymerase binds. Enhancer A transcriptional regulatory protein prokaryotic or eukaryotic) which works by turning off or decreasing gene transcription. repressor A molecule that...
8. Control of gene expression in eukaryotic cells occurs at which level(s)? A. only the transcriptional...
8. Control of gene expression in eukaryotic cells occurs at which level(s)? A. only the transcriptional level B. epigenetic and transcriptional levels C. epigenetic, transcriptional, and translational levels
B. (10pts) Gene expression can be regulated in many ways. In the gene below, each letter represents a different mutation. Indicate which mutation would: (Use each letter only once.) trigger non-sense mediated decay increase transcript stability result in aberrant splicing reduce mRNA expression levels alter ADAR RNA editing promoter D — transcribed region intron A intron E exon- transcription factor binding sites exon spliced mRNA T 5'UTR CDS 3'UTR start codon stop codon C. (8pts) UAU encodes the amino acid...
QUESTION 19 19. The following is an example of posttranslational regulation of gene expression: A. A. Control of transcription by a repressor B. A. Control of transcription by an inducer. Oc. A. Alternative splicing of RNA. D. A. Controlling transport of mRNA from the nucleus. E. A. Phopsorylation of protein.
Match each term associated with genes and control of gene expression with the appropriate description. A transcriptional unit" that consists of promoter multiple genes under the control of a single regulatory element. A transcriptional regulatory protein (prokaryotic or eukaryotic) which works by turning on or increasing gene transcription. activator The region of a gene to which RNA polymerase binds. Enhancer A transcriptional regulatory protein prokaryotic or eukaryotic) which works by turning off or decreasing gene transcription. repressor A molecule that...
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