Homework Answers
The amount of introns, exons present n mRNA.
Use of repressor proteins to bind the operator for controlling transcription.
Ability of RNA polymerase to bind the promoter region.
Presence of transcription factors that increase or decrease the transcription.
mRNA must be processed before entering the cytoplasm
The persistence of 5' cap and 3 - poly A tail are removed the
mRNA is ready for translation.
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Select all of the following ways that gene expression is regulated in eukaryotes.
What are four ways in which gene expression is regulated? eukaryotes
What are four ways in which gene expression is regulated? eukaryotes
Discuss all the different ways and mechanisms that eukaryotes use to regulate gene expression.
Discuss all the different ways and mechanisms that eukaryotes use to regulate gene expression.
Regulation of Gene Expression in Eukaryotes In all organisms, certain genes are expressed at any given...
Regulation of Gene Expression in Eukaryotes In all organisms, certain genes are expressed at any given time while other genes are not. Both prokaryotes and eukaryotes regulate gene expression at the transcription stage. However the greater complexity of eukaryotic cells makes it possible for gene expression to be regulated at many other stages as well. The diagram below shows different stages at which gene expression may be regulated in eukaryotes. nucleus chro modifica anscription RNA processing cytoplasm degradation protein processing...
Gene expression in eukaryotes is regulated at steps beyond transcription. Briefly, describe these steps and give...
Gene expression in eukaryotes is regulated at steps beyond transcription. Briefly, describe these steps and give the mechanism of regulation.
Describe how the expression of this gene is regulated. Include the roles of all key players...
Describe how the expression of this gene is regulated. Include
the roles of all key players (GAL3, GAL4, GAL80, Gene promoter, RNA
polymerase, and transcription factors) illustrated.
Understanding regulation of transcription in eukaryotes. The images below depict how the expression of a gene required to break down lactose in yeast is regulated. The top image illustrates the key regulators of the process. The bottom two panels illustrate what happens in the presence and absence of galactose. Describe how the expression...
Incremental changes in the amount of expression in eukaryotes can be regulated by changing the amount...
Incremental changes in the amount of expression in eukaryotes can be regulated by changing the amount or activation of: Transcriptional Activator Proteins (TAP) Transcription Factors Mediators/Coactivators All of the above
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...
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...
A. Describe two examples (by two different methods) in Eukaryotes where gene expression is regulated after...
A. Describe two examples (by two different methods) in Eukaryotes where gene expression is regulated after the initial RNA transcript is produced. B. While passing Brown-Forman one night after Bio 331 lab, some students discovered apparent revertants of a bacterium with an loc operator constitutive mutation (09. a. What phenotype did the original mutant have? (In other words, what is the phenotype of an Of mutant7) b. What phenotype did the original "revertant" have? c. If the revertant actually retained...
Coordinate regulation of gene expression is important both in bacteria and eukaryotes. Operons are used to...
Coordinate regulation of gene expression is important both in bacteria and eukaryotes. Operons are used to co-ordinate gene expression in bacteria but NOT eukaryotes. Explain why operons strategy does not work in eukaryotes.
Regulation of Gene Expression in Eukaryotes In all organisms, certain genes are expressed at any given time while other genes are not. Both prokaryotes and eukaryotes regulate gene expression at the transcription stage. However the greater complexity of eukaryotic cells makes it possible for gene expression to be regulated at many other stages as well. The diagram below shows different stages at which gene expression may be regulated in eukaryotes. nucleus chro modifica anscription RNA processing cytoplasm degradation protein processing...
Describe how the expression of this gene is regulated. Include
the roles of all key players (GAL3, GAL4, GAL80, Gene promoter, RNA
polymerase, and transcription factors) illustrated.
Understanding regulation of transcription in eukaryotes. The images below depict how the expression of a gene required to break down lactose in yeast is regulated. The top image illustrates the key regulators of the process. The bottom two panels illustrate what happens in the presence and absence of galactose. Describe how the expression...
Incremental changes in the amount of expression in eukaryotes can be regulated by changing the amount or activation of: Transcriptional Activator Proteins (TAP) Transcription Factors Mediators/Coactivators All of the above
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...
A. Describe two examples (by two different methods) in Eukaryotes where gene expression is regulated after the initial RNA transcript is produced. B. While passing Brown-Forman one night after Bio 331 lab, some students discovered apparent revertants of a bacterium with an loc operator constitutive mutation (09. a. What phenotype did the original mutant have? (In other words, what is the phenotype of an Of mutant7) b. What phenotype did the original "revertant" have? c. If the revertant actually retained...
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