Q: Using the lac operon as a model, explain the role of inducers, repressors, and inducer exclusion.
A: Genomic DNA (deoxyribonucleic acid) consists of both structural and regulatory genes. The structural…
Q: The TRP operon functions by attenuation. Briefly explain how attenuation works and why it is…
A: Trp operon or the tryptophan operon is a group of genes that are responsible for tryptophan enzymes.…
Q: 5g. A mutation has occurred rendering the regulatory protein unable to recognize the operator…
A: Operons are groups of genes involved in regulating a process and are transcribed as a single mRNA.…
Q: lacZ expression Low Low High High Media + glucose - lactose + glucose + lactose - glucose - lactose…
A: lac operon is an inducible operon. That is, the lac operon is generally turned off and it is turned…
Q: Describe the terms: Transformation Operon Recombination
A: Hello you have asked question with multiple subparts. We will be able to answer only first three.…
Q: How does the Trp operon work? A. Binding of Trp to a repressor protein allows the repressor to bind…
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Q: Compare what happens with each "key player" at the lac operon when lactose is present vs. not…
A: Lac operon is a simple prokaryotic group of genes for the metabolism of lactose. It consists of…
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Q: ttenuator control of the Trp operon what is the correct option from the choices below? involves a…
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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: 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: Why trp operon has a higher level of expression than live operon in bacteria grown on nutrient-poor…
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Q: Predict the growth/color pattern you'd expect for constitutive mutants for the lac operon. Table 1:…
A:
Q: operon
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Q: I. CAP-CAMP complex binds to the operator locus blocking the RNA polymerase. II. In the presence of…
A: The lactose operon (also known as the lac operon) is a set of genes that are specific for uptake and…
Q: Match the correct answer for when an E. coli cell with a functional lac operon is growing in the…
A: When glucose and lactose are present in medium then E.coli uses glucose first and inhibits the…
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: Tryptophan (Trp) attenuation is an extra mechanism of regulation of trp operon when trp level is too…
A: Attenuation is a mechanism of control of the tryptophan (Trp) operon that occurs when the level of…
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: Answer as Directed. Below is the model of a lac operon. lac I lac Z C promoter operator +1 lac Y lac…
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Q: Answer as Directed. Below is the model of a lac operon. lac I lac Z с promoter operator lac Y lac A…
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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: Trp operon of E. coli is an inducible sytem since it turns on in the presence of tryptophan. In most…
A: DNA codes for proteins, which occur in three stages: replication, transcription, and translation.…
Q: Lac operon explain in easy words
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Q: Many amino acid biosynthetic operon under attenuation control are also under negative control.…
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Q: The trp operon is: **(for additional information review the CogBooks Module, answer explained on…
A: Negative inducible operons is a method wherever the active regulator macromolecule binds to the…
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: Supply the Wuras in the blanks below: In an inducible operon, transcription is normally and must be…
A: An operon is a group of multiple genes that are transcribed together to give the out come of a…
Q: Diagram and define an Operon, including 6 DNA and protein components important to its function.…
A: Operon refers to a group of genes which are under the control of an operator. The major components…
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: Regarding the trp operon: when levels of tryptophan are low, the ___ hairpin forms, resulting in…
A: Trp operon is negatively regulated by tryptophan which means in low concentration of tryptophan the…
Q: Matching type Choices are in the picture 11. regulating elements in the operon 12. ribosome…
A: Transcription is the process by which the information in a strand of DNA is copied into a new…
Q: What is/explain stochiometry matrix for lac operon model
A: The transcription state of a genome is controlled by complex regulatory networks. These…
Q: Recall that the trp operon has a special leader sequence (trpL) between the operator and the…
A: INTRODUCTION Bacteria like Escherichia coli (a friendly inhabitant of our gut) need amino acids to…
Q: Match the sequence to its function.…
A: Operator genes contain the code needed to start the process of converting one or more structural…
Q: In class, I compared how the Lac operon operates like a car's gas pedal and brakes. Describe this…
A: Lac operon is needed by the bacteria for the transport and metabolism of lactose.It is only…
Q: Operator | Choose Choose) A set of genes transcribed together under the regulatory control of a…
A: In the above question there are some operon and some parts of operon. Every parts has its different…
Q: Please explain the structure of Lac operon in bacteria.
A: Gene regulation can be defined as any kind of alteration in the gene to give rise to a different…
Q: Explain the mode of action of transcription inhibitor metarrestin. Explain why transcription…
A: Transcription is the process of formation of messenger RNA from DNA. It takes place inside the…
Q: Decide which operon each of the following characteristics applies to. Note: a description may apply…
A: Introduction "In E.coli And Other Bacteria, The Lac Operon Is An Operon Or A Set Of Genes With A…
Q: In your own words describe in detail what happens at the lac operon in each of the following…
A: Gene regulation at the level of transcription in bacteria is achieved by the operon model. Operon…
Q: can I have a summary explanation what effect does lactose have on the bacterial cell’s lac operon?
A: Lac operon Lac operon is a group of three gene which help in the metabolism of lactose in bacteria.
Q: The following represents a eukaryotic operon. a.true b.false DNA Promoter Region -35 Box -10 Box -1…
A: An operon is a functional unit of DNA comprising a collection of genes dominated by a single…
Q: Discuss the regulation of the tryptophan operon. How does this story change under the two…
A: Introduction: The trp operon is a collection of genes found in E. coli bacteria that code for…
Q: A constitutive mutation in the lac operon may be of several types. [Note that constitutive means…
A: A constitutive mutation in the lac operon may be of several types. Here we have to choose two types…
explanation summary
You now add tryptophan to the cell. What would happen to the bacterial cell and its trp operon?
Step by step
Solved in 2 steps
- Matching type Choices are in the picture 11. regulating elements in the operon 12. ribosome propels to the next bases 13. dozen of initiation factors involving methionly tRNA 14. eRF recognizes UGA 15. TATA box in the promoter regionGive only typing answer with explanation and conclusion 6. What is the operon model of gene expression in bacteria? Explain how the lac operon works.Using the lac operon as a model, explain the role of inducers, repressors, and inducer exclusion.
- Attenuator control of the Trp operon what is the correct option from the choices below? involves a second repressor protein. would also work in eukaryotic cells. requires a short leader peptide gene. is independent of the Trp concentration. regulates transcriptional initiation of the operon.Illustrate simplified region (map) of the lac operon genes. Identify the genes present in this region.For the E. coli lac operon, when lactose is present: a. and glucose is absent, cAMP binds and activates catabolicactivator protein (CAP). b. and glucose is absent, the level of cAMP decreases. c. activated CAP binds the repressor protein to remove it from the operator gene. d. the cell prefers lactose over glucose. e. RNA polymerase cannot bind to the promoter.
- Describe a bacterial operon's structural advantage. Explain transcriptional stages such as initiation, elongation, and termination. In this article, please explain on the involvement of the sigma factor, elongation processes, and attenuation.Explain the mode of action of transcription inhibitor metarrestin. Explain why transcription inhibitor is a good anticancer drug.Please help me iwht this question explain how the regulation of the Lac Operon incorporate both negative and positive regulation?
- What is/explain stochiometry matrix for lac operon model? Please answer asap32. In class, I compared how the Lac operon operates like a car's gas pedal and brakes. Describe this comparison further by discussing individual elements of the Lac operon and connecting them to function of a car's gas pedal and brakes.Explain how an inducible operon is regulated (make sure you include an explanation of how the CAP (aka CRP) protein is involved)