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 1. Differences in mRNA levels BETWEEN operons sequences can cause different open reading frames to be translated differently. 2. Differences in protein levels

Q: Model 1: What conditions would need to be present in the cell in order to reverse the regulatory…

A: The operon is the system that explains the regulation of gene expression in terms of switching “on”…

Q: 1) The logic of the Lac operon was deciphered by using bacterial lac-operon mutants. Crucial to the…

A: Lac operon is a genetic unit in bacteria that helps in the metabolism of lactose in E.coli and lac…

Q: E) The regulatory protein that controls expression of the hexose operons is a transcriptional…

A: The regulatory protein that controls expression of the hexose operons is a transcriptional…

Q: Describe the regulation of the lac operon when lactose is present and glucose is absent

A: In 1961, F. Jacob and J. Monod proposed the operon model to explain the genetic basis of enzyme…

Q: A researcher was trying to determine whether two molecules (molecule A and molecule B) were co-…

A: CoRepressor - The function of the corepressor is to induce transcriptional silencing or to repress…

Q: The only way that information is extracted out of DNA is through the transcription of MRNAS that…

A: According to our guideline we can answer only the first question. So upload the second question…

Q: Which of the following statements about the la a) The repressor only leaves the operator v product…

A: The lac operon is a cluster of genes in bacteria responsible for lactose metabolism. It consists of…

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: Which of the following is TRUE about attenuation?

A: In genetics, attenuation is a proposed mechanism of control in some bacterial operons which results…

Q: . true or false a) Capping is the process of adding poly-guanido methyl in the mRNA. (true/false)…

A: Ans a.)  Capping is the process of adding poly-guanido methyl in the mRNA. True  # It is a kind of…

Q: If lactose isn't present in the environment of an E. coli, what is the state of the lac operon? O a.…

A: The lactose operon (also known as the lac operon) is a group of genes present in E. coli and other…

Q: Imagine this scenario: In E.coli the Operon X encodes for Proteins Y, X and Z. Proteins Y, X and Z…

A: Introduction  The lac operon is a group of genes in bacteria that are regulated as a unit and are…

Q: Which of the following statements about the expression of the repressor (lacl) gene in the lac…

A: The lac operon's transcription is repressed (inhibited) by the lac repressor protein. In order to…

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: What would likely result from a mutation in the lac operon promoter that increases the number of RNA…

A: RNA polymerase is the enzyme that polymerises messenger RNA (mRNA) over the DNA molecule. This…

Q: Which mutation would lead to no attenuation, but still allow for transcription and translation of…

A: In tryptophan operon there are four sequence sequence 1, 2, 3 and 4.  There are two sequences that…

Q: Fill in the 2 blanks: The lac operon is an example of (blank 1)_______ control in which the presence…

A: An operon is a cluster of genes which is controlled by a single promoter. Lac operon, also known as…

Q: Answer the following questions based on the lac Operon metabolic pathway.

A: Gene Regulation In prokaryotes , control of the rate of transcription is the site for control of…

Q: Considering the fec operon described above, under which conditions would the operon be off? Choose…

A: The protein synthesis process is started from the operon region that is actually worked as a switch.…

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: lactose a. Activation CAP lac I repressor allolactose b. Repression CAP lac I repressor CAMP с CAMP…

A: Lac operon consists of the cluster of genes. The letters depicted in the lac operon below are as…

Q: Please answer the following question

A: Hope it help answer your questions. Let me know if you have any clarification. Thank you.

Q: Describe the main functional differences between the TRP and the Lac operons. Main functional…

A: TRP stands for tryptophan. It is an essential amino acid that must be obtained from the diet and is…

Q: 1d regulation of the lack operon by the lack repressor is an example of negative regulation. what in…

A: E.coli  bacterium intake glucose as a primary source of energy metabolism . When a glucose is scarce…

Q: Which of the below conditions would result in the lowest level of expression from the lac operon…

A: Option C is correct :

Q: Provide the SIGNIFICANT differences between the following

A: The process by which a cell regulates the conversion of DNA to RNA (transcription) and hence…

Q: explain this image for the ecoli bacteria mutation trpE

A: Introduction The trp operon is a type of operon system found in E. coli bacteria. The trp operon…

Q: 2. The promoter (P) is the start site of transcription through the binding of RNA polymerase before…

A: The lac operon: The lac operon or the lactose operon is the most widely studied gene with respect to…

Q: An operon is a group of genes under the control of a single promoter. Match each type of operon with…

A: Introduction :- An operon is a functional piece of DNA in genetics that houses a collection of genes…

Q: In bacteria sigma factors: 1. Transcript factors 2. Specialized subunit of the core enzyme 3.…

A: In prokaryotic (bacteria) transcription process the RNA polymerase perform the synthesis of RNA…

Q: ac operon.  Drag the listed molecules to their corresponding bin. Reset Help   ONPG IPTG X-Gal…

A: ONPG - beta-galactosidase cleaves this molecule to form a visible yellow product. Explaination:  The…

Q: Let’s suppose a DNA mutation changes the consensus sequence at the −35 site in a way that inhibits σ…

A: A sigma factor or specificity factor refers to the protein factor required for the transcription…

Q: A hypothetical operon, the O3M operon, controls the breakdown of omega-3 fatty acids. When omega-3…

A: Introduction:- An Operon is defined as the unit of gene expression and regulation. A single operon…

Q: Which of the following statements about operons are true? (Check all that apply) Operons are common…

A: Ans: An operon is a cluster of the genes found in bacteria and viruses, these genes transcribed to…

Q: 12a. In what condition is the LacZ gene transcribed? ANSWER (in one sentence) 12b. Fill in the…

A: The lac operon is a cluster of genes, including the lacZ, lacY, and lacA genes, that are involved in…

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…