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A transcriptional activator protein regulates gene expression in
a) cis
b) trans
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- Which type of transcriptional regulation is depicted?Determine whether the following will increase or decrease gene expression: mRNA degradation mRNA capping Binding of a transcriptional activator Ubiquitination of a protein and targeting to the proteasomeA cell has a mutated mediator protein. a) How will this affect transcription of genes? (circle an answer below) No transcription Weak transcription will occur Strong transcription will occur b) Why? Describe your choice above
- Post-translational control refers to: a. regulation of gene expression after transcription b. regulation of gene expression after translation c. control of epigenetic activation d. period between transcription and translationPut the following processes in order of their occurrence during expression of a eukaryotic gene: a. mRNA processing c. transcription b. translation d. RNA leaves nucleusWhich of the following is an example of positive control? (a) transcription occurs when a repressor binds to an inducer (b) transcription cannot occur when a repressor binds to a corepressor (c) transcription is stimulated when an activator protein binds to DNA (d) a and b (e) a and c
- Describe in detail the gene activation.Which of the following is true of transcription factors? A)The same transcription factors are found in all cell types. B)They can increase or decrease gene expression. C)They are a type of cis-acting element. D)They bind only to promoters.An activated eukaryotic transcription factor looks for specific:
- Describe two different types of pre-transcriptional control of gene expression? Give an example of each type.How does the fact that mRNA is quickly degraded help a cell control gene expression?Expression of a gene, in terms of greater accumulation of the protein it encodes, could be increased by. A) increasing transcription of that gene. B) inhibiting proteases that break down the protein it encodes C) increasing the half life of its MRNA transcript D) A and C E) A, B and C
