Which statement does NOT explain why the lac operon would not be effectively regulated by an attenuation mechanism like the trp operon? 1.Lactose is a substrate for the lac operon protein products.   2.Products of lac operon enzymes are not used in protein synthesis.   3.Transcription and translation do not happen simultaneously for the lac operon.   4.Attenuation is a suitable regulatory mechanism for anabolic amino acid pathways.   5.All of these statements explain why regulation by attenuation would not be effective for the lac operon.

Q: A mutation in the lac operator that prevents binding of the lac repressor to the operator

A: Lac operon The lac operon is a group of genes with a single promoter. It consists of three genes…

Q: Assuming that the level of glucose is low, a mutation in the repressor associated with the lac…

A: The lac operon stands for lactose operon. These are a set of genes that are found in E.coli and…

Q: What type of operon is arabinose operon? Dose the repressor bond when arabinose is I present or…

A: Introduction  An operon is a functional segment of Dna that houses a collection of genes that are…

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: When an individual drink's a product with lactose (e.g., whole milk), what happens to the repressor…

A: Lac Operon consist of of an operator region promoter region and structural gene region. This Operon…

Q: Describe operons in your own words, as if you were explaining what an operon is to someone who knew…

A: DNA is the biomolecule which contains all biological information in an organisms . the part of the…

Q: Compare and contrast the lac operon and trp operon of E. coli.

A: E.coli is a type of bacteria that is mostly found in the human intestine and gut of some animals. It…

Q: E. coli has five genes that code for enzymes that make tryptophan. These genes are regulated by a…

A: When a group of related genes exist under the control of a single promoter, it is referred to as an…

Q: Strain X-23 has a mutation in the lacI gene resulting in a lacI protein that cannot bind DNA.…

A: The operon model is applicable in bacterial gene regulation and some lower eukaryotes gene…

Q: 10. Modify the diagrams below to reflect the activation and repression of lac operon. Use arrows,…

A: The prokaryotic gene regulatory system is known as operon system in which the expression of…

Q: 1 Given the following genotypes, explain how the mutation (identified by a () superscript will…

A: Operon is a unit  consisting of one or more systems that function coordinately under the control of…

Q: 1. A. A mutation in E. coli is found that fails to induce the arabinose operon. Upon further…

A: A mutation is a change to the DNA sequence of a cell. This change can be due to rearrangements on…

Q: 5f. Complete the diagrams below to reflect the proteins and any relevant cofactors (e.g. -…

A: The lac operon is an operon, or cluster of genes with one promoter (transcribed as one mRNA). The…

Q: Complete the diagrams below to reflect the proteins and any relevant cofactors (e.g. -…

A: Exergonic reactions have negative free energy change Where are endergonic reactions have positive…

Q: Which of these BEST DESCRIBE tryptophan in the Trp Operon? A. Acts as a corepressor B. Acts as a…

A: An operon is a unit of genetic material that functions in a coordinated manner through the use of an…

Q: A mutation in the lac I gene that prevents production of the lac repressor choose an answer below:…

A: lac operon also known as lactose operon was discovered by F. Jacob and J. Monod, for that, they…

Q: If there was a mutation such that the lac I protein could no longer bind lactose, but could still…

A: Lac operon is responsible for the metabolism of lactose in bacteria.

Q: Explain how the following conditions will affect the regulation of the operon. Low cAMP levels; E.…

A: Operon is a sequence of DNA that consists of a set of genes which are involved in a particular…

Q: 5a. The table below summarizes expression of B-galactosidase (lacZ) and permease (lacY) from the lac…

A: 5a) Lac operon is an inducible operon that is expressed in the presence of a substance termed…

Q: Choose the best options, by dragging and dropping the colour coded text boxes below, that fill in…

A: Operon is transcription unit of prokaryotic genome with consist of many contiguous structural genes…

Q: Strain LOLZ has a mutation in the lacI gene that results in a lacI protein that cannot bind…

A: Lac operon is the segment of DNA which is responsible for breaking down lactose into glucose and…

Q: Which of the following describes the lac operon in E. coli when lactose and glucose is present in…

A: The lac repressor acts as a lactose sensor. It normally blocks transcription of the operon, but…

Q: Which of the following arabinose operon regulatory sites is exclusively involved in the repression…

A: Answer - Option B - ara O2

Q: Strain HK180 has lac operon with a nonfunctional lacP. Otherwise all other parts of the operon are…

A: The promoter is a DNA sequence located upstream of the target gene to be transcribed, to which RNA…

Q: One way that regulation is often studied is by examining the effects of mute ons. For example,…

A: There are two types of lac mutations occurring in lac operon: 1. uninducible - operon can't be…

Q: 1. A strain of E. coli is genetically engineered in which the lacZ and lacY removed and replaced…

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

Q: 6. Which of the following is true about E. coll's lac operon? If there is no lactose present, the…

A: Option 1. For the lactose transport and metabolism of in E. coli and other bacteria, the lac operon…

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: Say you have an operon called the CAKE operon, it contains genes for the enzymes require to convert…

A: An operon consists of a set of genes regulated by a single promoter. The products of these genes are…

Q: In the lac and trp operons, the repressors are said to be "allosteric molecules" because they…

A: Operator sequences are the sequences involved in the regulation of transcription, and activators or…

Q: regulation of the lac operon by cAMP-CAP complex is an example of positive regulation. what in…

A: They are transcription, translation, post-transcription and post-translation. Genes which code for…

Q: Strain P77 has a mutation in the lacO that prevents it from being bound by the lacI protein.…

A: The operon model is applicable in bacterial gene regulation and also applicable in some lower…

Q: Mutations in the genes of an operon could affect the expression of its genes. For each statement,…

A: Introduction: Mutation can be defined as any change in DNA. This is any heritable and genetic change…

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: Would you expect to see attenuation in the lac operon and other operons that control the metabolism…

A: Lac operon contains genes that are involved in the lactose metabolism. It is expressed when lactose…

Q: Which of the following is true about the Lac operon? Group of answer choices An operon with a…

A: Operon is the cluster of genes found in DNA. It consists os regulatory gene, structural gene,…

Q: 1) Assume you have an operon that is repressible. In this case, the rate of synthesis of repressor…

A: An operon is defined as a DNA functioning unit containing a cluster or group of genes under the…

Q: Strain ROFL4 has a premature stop mutation in the lacZ gene, resulting in a nonfunctional…

A: Answer: lac Z gene is the gene in lac operon where it is responsible for the formation of…

Q: The illustration below shows the lac operon used in E. coli. Explain what is happening in the bottom…

A: An operon is a set of genes that get transcribed into single mRNA using one promoter. These operons…

Q: If an E. coli cell is exposed to glucose, what happens? O A) CAMP levels are increased and the…

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

Q: What is a specific region in the trp operon that you could mutate so it expresses the trp operon in…

A: Introduction : The Trp Operon Codes For The Components Required For Tryptophan Production. An Operon…

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: 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: Say you have an operon called the CAKE operon, it contains genes for the enzymes require to convert…

A: The operon model is considered as a cluster of functional genes that are activated in response to…

Q: In the lac operon, the lacZ gene codes for an enzyme called ____________, which catalyze the…

A: 1st blank: beta-galactosidase 2nd blank: Lactose

Q: E. coli is given lactose as a nutrient source. This results in the activation of the lac operon only…

A: The solution to the above mentioned questions is as follows:

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: f. Complete the diagrams below to reflect the proteins and any relevant cofactors (e.g. - inducer/…

A: Given: