Q: Would a mutation that inactivated lac repressor and prevented it from binding to the lac operator…
A: The negative regulation of the lac operon is done by a repressor, which is a product of the lacI…
Q: If you were to grow the E. coli transformed with pGLO plasmid for several generations on…
A: pGLO plasmid contains GFP gene to enable learning on central dogma, gene expression and regulations…
Q: Please help me iwht this question explain how the regulation of the Lac Operon incorporate both…
A: An operon includes a group of genes that are expressed under the same promoter.
Q: What is the difference between negative and positive regulation in operon? Explain it with the help…
A: BASIC INFORMATION OPERON MODEL This model of gene regulation was put forward by Francis Jacob and…
Q: Describe the regulation of the lac operon when lactose is present and glucose is present Your…
A: The operon consists of a series of structural gene like Z, Y and A. a segment of DNA called an…
Q: a mutation that leads to a nonfunctional adenylate cyclase enzyme would lead to what expression…
A: A mutation is a change in the genetic material (the genome) of a cell of a live creature or a virus…
Q: Suppose that E. coli sustains a mutation in its gene for the lac operon repressor making the…
A: The lactose operon or lac operon is an inducible operon system under dual – positive and negative…
Q: Regulation of the E. coli trp operon by attenuation requires the trp repressor protein. prevents…
A: An operon is a function unit of DNA containing a set of genes including structural gene, a…
Q: Compare and contrast the functional mechanism of the Inducible - Lac operon with the Repressible -…
A: Gene expression is a process in which the genetic instructions of genes are utilized to manage…
Q: For the following E.coli genotype trpR- trpP+ trpO+ trpE- / trpR- trpP+ trpO+ trpE+ the…
A: Tryptophan operon found in E.coli and some other bacteria. It is a group of genes that encodes for…
Q: In prokaryotes, the trp operon is under ________ that ________ prevents RNA polymerase from binding.…
A: Amino acids are required for bacteria like E. coli to sustain. E. coli can ingest tryptophan, which…
Q: Attardi et al (1963) found out that lactose operon mRNA synthesis in E. coli increased with the…
A: Introduction Operon is a genetic regulatory system found in bacteria and their viruses that clusters…
Q: Components necessary for regulating the /trp/ operon do NOT include
A: Answer - Option E - CAP protein
Q: A bacterial cell has very low glucose and lactose is present. Explain how the lac operon will…
A: Lac Operon -- An operon is a functioning unit of genomic DNA which contains a group of genes…
Q: In the presence of lactose and the presence of glucose the lac operon is not expressed . Lacl is […
A: In the presence of glucose as well as lactose, inhibitor/repressors gene is bound to the operator…
Q: The glycerol operon has two structural genes that encode the enzymes Amairmerasa and isomerase, as…
A: The usage of carbohydrates as an energy source is dependent on the availability of the concerned…
Q: Describe a bacterial operon's structural advantage.
A: *NOTE: Kindly repost for other question. Dear Student as per the guidelines we are supposed to…
Q: what is the lac operon ? what happens in terms of the lac operon when lactose is absent from the…
A: The working segment of DNA that codes for proteins is a gene. An operon is a group of genes that are…
Q: Why it is essential to the positive stimulation of transcription of the lac operon ?
A: Lac operon includes the genes that code for the enzymes involved in lactose catabolism.
Q: Which of the following arabinose operon regulatory sites is exclusively involved in the repression…
A: Answer - Option B - ara O2
Q: By using separate labelled diagrams, describe as detail as possile the actions of the normal and…
A: Lac operon is an inducible type of operon that gets activated when there is no glucose available and…
Q: In E. coli, the trp operon is on by default, while the lac operon is off. Why do you think that this…
A:
Q: Outline the operon theory using the lac operon as anexample
A: Operon consists of genes placed in sequential order. Lac operon has following genes- Regulator gene…
Q: Explain how regulatory regions of the lac operon canbe used in the production of pharmaceutical…
A: The lac operon is an operon that allows the bacteria to use lactose to synthesize energy. It is…
Q: Indicate what protein(s) will bind the DNA in the lac regulatory region of E. coli given the…
A: 1. When lactose as well as glucose are absent then no transcription will take place. The lac operon…
Q: Figure 5 shows the lac operon structure in Escherichia Coli What will happen if substance S is…
A: Lac operon contains genes coding for proteins in charge of transporting lactose into the cytosol and…
Q: The tryptophan operon is regulated by two methods. Describe in detail the regulation of the operon…
A: Genes are the functional unit of heredity. Operons are a group of genes under a single promoter. The…
Q: Draw the structure of lac operon and its action when the following conditions are prevailing in the…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: Suppose that E. coli sustains a mutation in its gene for the lac operon depressor making the…
A: A lac operon is a group of genes with a single promoter ( it is transcribed as a single mRNA). The…
Q: When referring to attenuation in the regulation of the trp operon it would be safe to say that, when…
A: Attenuation is a regulatory mechanism that is employed in bacterial operons to guarantee that…
Q: Explain how elements of the lac operon are exploited to regulate recombinant protein production in…
A: Introduction Three structural genes, as well as a promoter, a terminator, a regulator, and an…
Q: Which of the following diagrams best models the regulation of the trp operon when tryptophan is…
A: An operon is a polycistronic gene regulated by a common promoter and regulatory sequences. Operons…
Q: Lac operon explain in easy words
A: An operon is a genetic regulatory system that clusters genes coding for functionally related…
Q: Many amino acid biosynthetic operon under attenuation control are also under negative control.…
A: In bacteria, transcriptional attenuation is a common means of regulating gene expression in response…
Q: Lac operon experiment,
A: In bacteria, the operon is the coordinated unit of genetic expression and is the functioning unit of…
Q: Can you think for how long the lack operon would be expreesed in the presence of lactose?
A: Lac operon is an operon that regulates the breakdown of lactose present in the medium. It contains…
Q: Explain how the following conditions will affect the regulation of the operon. (3 pts) Low cAMP…
A: Lac operon is a mechanism seen in the E coli that enables the proper metabolism in its body. The…
Q: consider the fec operon of Staphylococcus madeupiddis, which encodes an iron citrate uptake system.…
A:
Q: Indicate what protein(s) will bind the DNA in the lac regulatory region of E. coli given the…
A: An operon can be defined as a unit of bacterial gene expression and its regulation.It consist of…
Q: For each of the growth conditions listed, what proteins would be bound to the lac operon? (Do not…
A: An operon consists of many related genes that are regulated by a common operator. The multiple genes…
Q: Explain and give an example (lac operon) of how inducer operons function in prokaryotes.
A: Prokaryote are organisms that lacks a distinct nucleus and other organelles due to the absence of…
Q: Many amino acid biosynthetic operons under attenuationcontrol are also under negative control.…
A: The premature termination of mRNA synthesis is controlled by the attenuation mechanism. This is…
Q: Why is it beneficial for the bacterium to regulate the lac operon with both a repressor protein and…
A: Lac operon permits the metabolism of lactose sugar in bacterial cells. It contains three genes that…
Q: A marine bacterium is isolated and shown to contain an inducible operon whose genetic products…
A: An operon is defined as a genetic regulatory system. It is present mostly in bacteria and…
Q: Explain the process of attenuation in the trp operon under the following conditi (i) No tryptophan…
A: Answer
Q: A mutation at the operator prevents the regulator protein from binding.What effect will this…
A: An operon is defined as a group of genes that have a common promoter and regulator and also…
Q: Why do scientists define the trp operon as repressible and the lac operon as inducible?
A: Operon is a combination of genes that are transcribed by the same promoter.
Q: consider the fec operon of Staphylococcus madeupiddis, which encodes an iron citrate uptake system.…
A: The fec operon is responsible for regulating the expression of iron in the cytoplasm of cell.
Q: A mutation at the operator prevents the regulator protein from binding.What effect will this…
A: Inducible operon has proteins that bind to repress or activate transcription. It depends on the…
Why trp operon has a higher level of expression than live operon in bacteria grown on nutrient-poor agar plates? Explain with clear reasoning
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- In an investigan of Lac operon experiment, the bacteria were placed in dropper bottles containing glycerol as a carbon source. Why did the culture have to be incubated for an hour in the new media? Explain in a detailed way.Many amino acid biosynthetic operon under attenuation control are also under negative control. Considering that the environment of a bacterium can be highly dynamic, what advantage could be conferred by having attenuation as a second layer of control?In terms of the trp operon, differentiate between two normal bacterial cultures, one grown in a medium supplied with tryptophan and the other medium without tryptophan.
- Would a mutation that inactivated lac repressor and prevented it from binding to the lac operator site result in the constitutive expression of the lac operon under all conditions? Explain. What is the disadvantage to the bacterium of having a constitutive lac operon?What would happen if the operator sequence of the trp operon contained a mutation that prevented the repressor protein from binding to the operator? (Explain what would happen in both the presence and absence of tryptophan)Many amino acid biosynthetic operons under attenuationcontrol are also under negative control. Considering that theenvironment of a bacterium can be highly dynamic, whatadvantage could be conferred by having attenuation as asecond layer of control?
- Why is it beneficial for the bacterium to regulate the lac operon with both a repressor protein and an activator protein?Which of the following lac operon genotypes would allow for functional versions of all the structural enzymes of the lac operon to be expressed constitutively even in the absence of lactose? Group of answer choices I+ O+ Z+ Y+ A+ I- O+ Z- Y- A- I+ OC Z+ Y+ A+ IS O+ Z+ Y+ A+ I+ O+ Z- Y+ A+What would happen if the operator sequence of the lac operon contained a mutation that prevented the repressor protein from binding the operator? (Explain what would happen both in the presence and absence of lactose)
- What is the difference between negative and positive regulation in operon? Explain it with the help of lac operon.Compare and contrast the functional mechanism of the Inducible - Lac operon with the Repressible - Tryp operon.In the lac operon system, do the inducers act at the transcription or translation level? Explain why it acts in that level in a short but concise way.