Under the following conditions, what will be occurring with the lac operon? Glucose: Present Lactose: Present O A. CAMP-CAP: Unbound Repressor: Bound O B. CAMP-CAP: Bound Repressor: Unbound C. CAMP-CAP: Bound Repressor: Bound D. CAMP-CAP: Unbound Repressor: Unbound

Q: Predict the level of genetic activity of the lac operon as well as the status of the lac repressor…

A: There are two regulatory factors present in the lac operon of E.coli  These are the repressor…

Q: In E. coli, induction in the lac operon and repression in the trp operon are both examples of a.…

A: Transcription, translation, post-transcription and post-translation. The process in which the gene…

Q: If an abnormal repressor protein could still bind allolactose but the binding of allolactose did not…

A: Operon acts as a single regulated unit having one or more structural genes, promoter gene, a…

Q: Operons are a common feature of bacterial genomes. Which of the following statements about the lac…

A: Lac operon has three important genes that helps the bacteria to take up the lactose sugar when…

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 add a co-eepressor to a repressor protein and that allows it to bind the operator is this a…

A: Inducible operon is one that is expressed in the presence of inducer. Constitutive operon is the…

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: Which of the following elements of the lac operon and its associated regulatory factors function in…

A: One of many types of functional regulatory elements are cis-regulatory modules. Regulatory elements…

Q: An operon a. is regulated by a repressor binding at the promoter. b. has structural genes that are…

A: When the RNA polymerase binds to the promoter, the operon is transcribed and some mRNAs are…

Q: Which of the following is false when the genes of the Lac operon are being tran- scribed in high…

A: Lac operon is a set of genes used by E.coli to metabolize lactose when glucose is not available for…

Q: In the lac operon, how would gene expression be affected if each one of the following segments was…

A: The lac operon is basically a group of genes with a single promoter whose genes encode proteins that…

Q: If lactose and glucose are provided in the growth medium of a culture of E. coli, then   a. Both…

A: Introduction: The correct choice is option d. Lac operon is repressed

Q: On its chromosome, an E. coli cell has a genotype of lacI− lacZ+ lacY+ lacA+. It has an F′ factor…

A: Lac operon is studied extensively by using mutant strains of E.coli. It is studied under the domain…

Q: Components necessary for regulating the /trp/ operon do NOT include

A: Answer - Option E - CAP protein

Q: What would occur if the repressor of an inducible operon weremutated so it could not bind the…

A: An operon is a functional unit of genomic DNA made up of group of genes that is controlled by a…

Q: How does the lac operon regulate lactose digestion in bacteria?a. The repressor protein becomes a…

A: The lac operon of E. coli contains genes concerned with lactose metabolism. It's expressed only if…

Q: What is the role of a substrate that controls a repressible operon?   a. increase the production…

A: Operon is the segment of DNA. It consists of structural genes, regulatory, promoter and operator…

Q: ptoph had a mutation on the repressor, not allowing it to bind with tryptophan. The repressor is…

A: Operons are proteins encoded together as a block that performs specific functions and are involved…

Q: .  What is the function of operons in bacterial gene regulation? b.  Describe how a bacterial…

A: a. What is the function of operons in bacterial gene regulation?   b. Describe how a bacterial…

Q: How does exposing an E. coli cell to glucose affect the regulation of the lac operon via CAP? a.…

A: Catabolite activator protein (CAP) impacts the expression of the lac operon based on the catabolites…

Q: In the lac operon, regulation of gene expression by CAP-CAMP is a type of O a. positive repressible…

A: Lac operon can be defined as the set of  constitutive genes with a single promoter that encodes for…

Q: the presence of tryptophan, and a mutation in the allosteric domain that abolishes tryptophan…

A: The trp operon is an operon that is a group of genes that is used for transcription  of messenger…

Q: For the lac operon, when glucose is absent and lactose is present ___________       None of the…

A: Question - For the lac operon, when glucose is absent and lactose is present ___________…

Q: (MC) What is the function of lactose in regulation of the lac operon? 1. activates a repressor…

A: Operons are a group of enzymes and regulatory sequences.

Q: What is the effect of a mutation in the allosteric site of the Lac Repressor protein?

A: Lac operon (often called lactose operon) is an important operon sequence required for the metabolism…

Q: If glucose is absent, but lactose is available, the lac operon will be _______ A. activated B.…

A: The lac operon is an operon or group of genes with a single promoter. The genes in the operon encode…

Q: The lac operon has which of the following characteristics? O 1) usually requires an activator…

A: In Eukaryotes all genes are separate and produce individual mRNAs on transcription. However, in…

Q: give an example of an operon that is under negative control   e. repressor   f. give an example…

A: Operon is a controlling unit ab gene expression in prokaryotes. Examples of Prawns are Lac Operon…

Q: . If a particular operon encodes enzymes for makingan essential amino acid and is regulated like…

A: An operon is a functional unit of DNA (Deoxyribonucleic acid) including a gene clusters under the…

Q: consider the fec operon of Staphylococcus madeupiddis, which encodes an iron citrate uptake system.…

A:

Q: Provide the SIGNIFICANT differences between the following: 1. Operon Systems Inducer/Lac…

A: An operon is a cluster of functional genes which are regulated by the common operator. Operons…

Q: Which diagram shows a system in which the lac operon genes are NOT going to be transcribed by the E.…

A: The prokaryotic gene expression is regulated by operon system that involves expression of polycystic…

Q: Under which of the following conditions will transcription of the lac operon occur?a) Lactose…

A: Introduction  All the gene expressions are under high regulation and this is necessary to avoid…

Q: A mutation occurs in the lac operon operator site such that LacI can no longer bind to the operator…

A: Lac I stands for lac inhibitor. It's major function is to turn off the lac operon in the absence of…

Q: In the trp operon, if a mutation occurred in the gene for the repressor so that it could bind to the…

A: Bacteria like Escherichia coli (a friendly gut bacterium) require amino acids to survive since they,…

Q: The figure at the beginning of this chapter showsthe binding of both a Lac repressor tetramer and…

A: Lac operon is an operon that involves in the transport and metabolism of lactose in humans and many…

Q: Which will be bound to the Lac Operon in an environment with lactose and glucose? A) both repressor…

A: The bacteria comprise many operons and one of the important operons is lac operon. Lac operon is…

Q: You are growing E. coli in a laboratory in order to study their operons. The growth media you are…

A: The bacterial gene transcription is regulated by the operon system that regulates the expression of…

Q: Which of the following statements about the lactose operon in E. coli is FALSE? Choose an answer…

A: The lac operon of E. coli contains genes involved in lactose metabolism. It's expressed only when…

Q: The tryptophan operon is a repressible operon that is   A. transcribed only when glucose is present…

A: The tryptophan operon is a repressible operon that is - B. not transcribed whenever tryptophan is…

Q: The regulator protein that acts on a negative repressible operon is synthesized as a. an active…

A: Operons consist of multiple structural genes grouped together with a promoter and an operator along…

Q: A. The gene that regulates the production of the Lacl protein is found further upstream of the lac…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A mutation that inactivates the repressor gene of the lac operon results in (a) the continuous…

A: In bacteria and their viruses, an operon is a genetic regulatory structure in which genes coding for…

Q: There is a mutation in sequence of the lac operator that prevents the lac repressor from being able…

A: Gene expression is regulated at the level of transcription by operon systems. In prokaryotes,…

Q: Which of the following statements is false?a) A derivative of lactose serves as an inducer of the…

A: Introduction: In bacteria, an operon is a coordinated component of genetic expression. In 1961,…

Q: In the: Mutation of the regulatory region for a repressor protein in the lac operon. Explain: (a)…

A: Operon  It is a set of multiple gene that is controlled by single operator.

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: If you made a mutation in the operator region of the lac promoter such that LacI can no longer bind…

A: Lac operon Lac operon or lactose operon is a negatively regulated operon containing operator gene,…