A hypothetical operon, the O3M operon, controls the breakdown of omega-3 fatty acids. When omega-3 fatty acids are at sufficiently high levels within the cell, an omega-3 fatty acids binds with a repressor, causing it to fall off the operator. This would decrease the rate of omega-3 fatty acids breakdown 10-fold increase the rate of omega-3 fatty acids breakdown 10-fold start the production of the structural proteins involved in omega-3 fatty acid breakdown stop the production of the structural proteins involved in omega-3 fatty acid breakdown

A hypothetical operon, the O3M operon, controls the breakdown of omega-3 fatty acids. When omega-3 fatty acids are at sufficiently high levels within the cell, an omega-3 fatty acids binds with a repressor, causing it to fall off the operator. This would decrease the rate of omega-3 fatty acids breakdown 10-fold increase the rate of omega-3 fatty acids breakdown 10-fold start the production of the structural proteins involved in omega-3 fatty acid breakdown stop the production of the structural proteins involved in omega-3 fatty acid breakdown

Name: can someone explain this to me A hypothetical operon, the O3M operon,
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Description: can someone explain this to me A hypothetical operon, the O3M operon, controls the breakdown of omega-3 fattyacids. When omega-3 fatty acids are at sufficiently high levels within the cell, anomega-3 fatty acids binds with a repressor, causing it to

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 9TYU: A mutation that inactivates the repressor gene of the lac operon results in (a) the continuous...

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The trp operon is a repressible operon. A strain of e coli develops a mutation whereby the trp repressor protein can no longer bind to the operator. How will this effect the production of tryptophan producing enzymes? Will these bacteria be able to live in a tryptophan free media (bacteria food)?
Which of the following statements about the lactose operon in E. coli is TRUE? It contains the genes that encode the proteins for lactose metabolism. Its transcription is blocked when allolactose binds to the lac repressor. It contains a promoter, an operator and an attenuator. It is barely transcribed, when lactose is present in the medium and glucose is absent. It is transcribed at very high levels, when lactose is absent, and glucose is present.
One way that regulation is often studied is by examining the effects of mutations. For example, mutations within the parts of the lac operon have been well studied. Which of these mutants would be considered a constitutive mutant (the operon is always on)? a mutation in CAP that prevents the binding of CAMP a mutation in one of the structural genes that prevents the transport of lactose into the cell a mutation that disables the promoter for the operon a mutation that disables the repressor
When does the trp operon allow its gene to be read? * when tryptophan is not present when lactose is present when lactose is not present when tryptophan is present What is the importance of lactase? * Lactase helps regulate when a gene is read. OLactase in not important to the cell. Lactase breaks down lactose sugar molecules for the cell. O Lactase helps to regulate when proteins are produced in the cell.
Which of the following statements about the tryptophan operon in E. coli is TRUE? Choose an answer below: It needs an inducer for gene expression. It contains the gene for lactose permease. It has no operator. Its whole regulation is based on attenuation. It contains a leader peptide upstream of the structural genes.
Mutations in the genes of the lac operon might affect the regulation of β-galactosidase synthesis. For each mutation listed below, indicating whether β-galactosidase would be regulated normally, always ON or always OFF. Mutation in operator site prevents repressor binding Mutation in lacIgene prevents repressor from binding operator Mutation in lacIgene prevents repressor from binding allolactose Nonsense mutation in lacZgenere
What would occur if the repressor of an inducible operon were mutated so it could not bind the operator? Build up of a substrate wihin the pathway controlled by the operon Continuous transcription of the operon's genes Irreversible binding of the repressor to the promoter Reduced transcription of the operon's genes O O O O
Which of the following diagrams best models the regulation of the trp operon when tryptophan is present at high levels?
Match each of the following mechanisms with how it can change the levels of gene products--whether on different operons or within the same operon. Different promoters might have different DNA sequences Translation initiation sequences can cause different open reading 1. Differences in mRNA levels BETWEEN operons frames to be translated 2. Differences in protein levels WITHIN an operon differently. The secondary structures of MRNA can differ which can change the rate of degradation of transcripts.
What are the effects of the following conditions on Lac operon of bacteria? Please do not forget to mention about the role of repressor, activator, RNA polymerase in each case. Glucose is absent and lactose is present Glucose is present and lactose is present Glucose is present and lactose is absent
The tryptophan (trp) operon is a repressible system. This means the genes are normally expressed, but the presence of trp can repress the operon the genes are normally repressed the genes are normally expressed when trp is present the genes are normally repressed, but the presence of trp can activate the genes
Under which of the following conditions would a lac operon produce the greatest amount of β-galactosidase? The least? Explain your reasoning. Lactose present Glucose present Condition 1 Yes No Condition 2 No Yes Condition 3 Yes Yes Condition 4 No No