Which of the following statements about the control of genes involved in galactose metabolism in yeast is FALSE? The genes coding for enzymes acting in the gal system are organized in an operon. The system involves a transcription activator. The system involves a transcription repressor. The presence of galactose sequesters the repressor in the cytoplasm. none of the above

Which of the following statements about the control of genes involved in galactose metabolism in yeast is FALSE? The genes coding for enzymes acting in the gal system are organized in an operon. The system involves a transcription activator. The system involves a transcription repressor. The presence of galactose sequesters the repressor in the cytoplasm. none of the above

Name: Which of the following statements about the control of genes involved
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Description: Which of the following statements about the control of genes involved in galactose metabolism in yeast is FALSE?The genes coding for enzymes acting in the gal system are organized in an operon.The system involves a transcription activator.The system

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter14: Gene Regulation

Section: Chapter Questions

Problem 7TYU: Which of the following is characteristic of genes and gene regulation in both bacteria and...

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Which of the following statements about the control of genes involved in galactose metabolism in yeast is FALSE? Choose one of the answers below The genes coding for enzymes acting in the gal system are organized in an operon. The system involves a transcription activator. The system involves a transcription repressor. The presence of galactose sequesters the repressor in the cytoplasm. none of the above
Which of the following statements about the lactose operon in E. coli is FALSE? Choose an answer below: It contains the genes that encode the proteins for lactose metabolism. Its transcription is induced when allolactose binds to the lac repressor. It contains a promoter and an operator. It is strongly transcribed when lactose is present in the medium and glucose is absent. none of the above
Which of the following is not a general description of the gene expression regulation mechanisms that operate in eukaryotic organisms? transcriptional-level control processing-level control translational level-control replication-level controls
Which of the following DNA regions is NOT involved in gene expression regulation in eukaryotes? Promoter-proximal elements Promoter Enhancer Operator **Enhancer is incorrect
Which of the following is not a general description of the gene expression regulation mechanisms that operate in eukaryotic organisms processing level control replication level control post translational leve control transcriptional level control translational level control
In the tryptophan operon of E. coli, what happens when tryptophan levels get too high? tryptophan is removed from its co-repressor, causing it to detach from the operator tryptophan is removed from its co-repressor, causing it to attach to the operator tryptophan is bound to its co-repressor, causing it to detach from the operator tryptophan is bound to its co-repressor, causing it to attach to the operator all of the above occur at equal rates when tryptophan levels get too high (Option C is the answer for the question above) What effect will the above process have on the tryptophan operon? RNA polymerase will detach from the promoter, initiating transcription RNA polymerase will detach from the promoter, stopping transcription RNA polymerase will attach to the promoter, initiating transcription RNA polymerase will attach to the promoter, stopping transcription all of the above occur at equal rates when tryptophan levels get too high
In the tryptophan operon of E. coli, what happens when tryptophan levels get too high? tryptophan is removed from its co-repressor, causing it to detach from the operator tryptophan is removed from its co-repressor, causing it to attach to the operator tryptophan is bound to its co-repressor, causing it to detach from the operator tryptophan is bound to its co-repressor, causing it to attach to the operator all of the above occur at equal rates when tryptophan levels get too high (Option D is the answer for the question above) What effect will the above process have on the tryptophan operon? RNA polymerase will detach from the promoter, initiating transcription RNA polymerase will detach from the promoter, stopping transcription RNA polymerase will attach to the promoter, initiating transcription RNA polymerase will attach to the promoter, stopping transcription all of the above occur at equal rates when tryptophan levels get too high
. In the tryptophan operon of E. coli, what happens when tryptophan levels get too high? tryptophan is removed from its co-repressor, causing it to detach from the operator tryptophan is removed from its co-repressor, causing it to attach to the operator tryptophan is bound to its co-repressor, causing it to detach from the operator tryptophan is bound to its co-repressor, causing it to attach to the operator all of the above occur at equal rates when tryptophan levels get too high
In the tryptophan operon of E. coli, what happens when tryptophan levels get too high? tryptophan is removed from its co-repressor, causing it to detach from the operator tryptophan is removed from its co-repressor, causing it to attach to the operator tryptophan is bound to its co-repressor, causing it to detach from the operator tryptophan is bound to its co-repressor, causing it to attach to the operator all of the above occur at equal rates when tryptophan levels get too high What effect will the above process have on the tryptophan operon? RNA polymerase will detach from the promoter, initiating transcription RNA polymerase will detach from the promoter, stopping transcription RNA polymerase will attach to the promoter, initiating transcription RNA polymerase will attach to the promoter, stopping transcription all of the above occur at equal rates when tryptophan levels get too high
A protein binds a DNA sequence several hundred base pairs upstream of a promoter in a eukaryotic organism. This results in an increased rate of transcription of the gene. What type of protein is this? Group of answer choices Activator Silencer Enhancer Repressor
Given the Table below concerning the lac operon, match the letter with what would be occurring for each scenario. Repressor is bound to the operator, cAMP complex is bound and transcription is prevented. Allolactose is bound to the repressor, cAMP complex is bound, and transcription is prevalent. Allolactose is bound to the repressor, cAMP complex is not assembled, and transcription is slow Repressor is bound to the operator, cAMP complex is not assembled, and transcription is prevented.
In the absence of lactose, the genes of the lac operon are: Not transcribed; because there is no lactose to activate the polymerase Not transcribed; because there is no lactose to inhibit the repressor Transcribed; because there is no lactose to inhibit the repressor Transcribed; because there is no lactose to activate the repressor