lack coding sequence Repressor protein ©20 X and Compar Promoter (JacP) CRP-CAMP binding site Operator (Jaco) lacz coding sequence B-galactosidase lacy coding sequence Lactose permease

Q: In the lac operon system, do the inducers act at the transcription or translation level? Explain why…

A: The lactose operon (lac operon) consists of a regulatory gene (i-gene) and three structural genes -…

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

A: The Lac operon contains genes responsible for the transportation and breakdown of lactose. These…

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: 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: 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: For the following questions, describe the expression levels of the structural genes in the Trp…

A: Tryptophan is an essential amino acid, and the trp operon is a genetic regulatory system that can be…

Q: Explain why large amounts of transcript result when a bacterium with a lac Operon is in a medium…

A: Transcription is the process by which RNA is synthesized from DNA. The messenger RNA or mRNA…

Q: The trp operon, found in E. coli, is a group of genes that encode biosynthetic enzymes for the amino…

A: When tryptophan levels are low tryptophan operon  is induced to transcribe structural genes so that…

Q: It has been proposed that thiogalactoside transacetylase (LacA in the lactose operon) plays a role…

A: The lactose operon is an operon required for the transport and metabolism of lactose in E.coli and…

Q: The highest level of transcription of the E. coli lac operon occurs when CAP (+cAMP) is bound to the…

A: The lac operon in E. coli is a system of genes that regulates the metabolism of lactose, a sugar.…

Q: Here is the model for TfR mRNA regulation (see Fig.), for your convenience. Orange protein (IRP or…

A: The transferrin receptor (TfR) is a glycoprotein associated with cell membrane. It plays a major…

Q: It has been postulated that thiogalactoside transacetylase (LacA in the lactose operon) plays a role…

A: Introduction  An operon is a DNA functional unit that comprises a cluster of genes regulated by a…

Q: Describe the structure of the Lac operon. How is it turned on? How is it turned off?

A: The gene products of the lac operon are very important for lactose metabolism. This is crucial for…

Q: 1) How many promoters control the expression of these genes? 2) How many locations does RNA…

A: An operon is a unit of genetic regulation found in prokaryotic organisms like bacteria and archaea.…

Q: Considering the Lac operon in E. coli, and chose what the expression of Lac Y would be in:  I) E.…

A: Lac l is the gene  which synthesizes repressor.Actually repressor is a protein that binds to the…

Q: . Listed in parts a through g are some mutations that were found in the 5′ UTR of the trp operon of…

A: The bacterial transcription unit containing more than one gene is known as an operon. An operon has…

Q: Which of the following lac operon genotypes would allow for functional versions of all the…

A: lac operon: - Inducible system - Both positive and negative regulation. - Involved in lactose…

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: A mutation in the repressor LacI causes it to lose the ability to bind its effector, allolactose.…

A: The question is asking about the effect of a mutation in the LacI repressor that causes it to lose…

Q: In the bacterium,Martian coli, it was discovered that the lac operon is positively regulated.…

A: Operon is a functional unit of DNA that consists of cluster of genes under control of promoter.…

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

A: Deoxyribonucleic acid is a particle made out of two polynucleotide chains that loop around one…

Q: Gal 4 is involved in the regulation of galactose metabolism. Describe how transcription would be…

A: Galactose is a common sugar in human diets. As a result, an epimerization reaction is needed for…

Q: Mutation in the regulatory gene in the lac operon results in the formation of an inactive repressor.…

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 consists of three structural genes, lacZ, lacY and lacA that are transcribed as a…

A:

Q: he lac operon, determine whether genes will be expressed (on) or silenced (off) given the following:…

A: IN option A Lactose levels are high, glucose is low.---- Genes will be expressed(on).

Q: The lactose operon in E. coli comprises two structural genes and three regulatory components.…

A: β-galactosidase activity Permease activity Genotypes Glycerol Lactose Glycerol Lactose A - + -…

Q: As diagrammed below, some amino acid biosynthetic operons have stem loop structures in the mRNA.…

A: Option A is incorrect as without the formation of heparin the process of translation can not be…

Q: Explore the differences between positive inducible, positive repressible, negative inducible, and…

A: Positive Inducible Regulation:- In positive inducible regulation, the binding of the regulatory…

Q: Bacterial DNA containing an operon encoding three enzymes is introduced into chromosomal DNA in…

A: Prokaryotes are the organisms that lack the cell nucleus and membrane-bound organelles. They have…

Q: For the trp operon, determine whether genes will be expressed (on) or silenced (off) given the…

A: Gene is a basic unit of hereditary information or data that fills a fixed position on a chromosome.…

Q: Describe the regulation of expression of the lac Z, Y and A genes in E.coli when there is LOW…

A:

Q: To study the lac operon, you engineer a strain of E coli to have a lac operon in which the lac Z…

A: In this study, the lac operon is investigated using a modified E. coli strain with the GFP gene…

Immunology

Immunology is the division of science involved with the immune reactions occurring in living organisms. The organisms are accustomed to evolving internal defense mechanisms to evade the invasion of microbial pathogens. Diverse cells are connected with stimulating the immune responses, which produce inhospitable conditions to the microbes prompting their lysis and thus inhibits the multiplication of the pathogens. The immune system can distinguish the pathogens through the aid of cellular intercommunication and launch responses to destroy them.