According to the operon hypothesis, the Z and Y genes of E. coli are classified as structural genes,since they specify the ?.structure of lactoseO structure of the plasma membraneO structure of the E. coli chromosomeamino acid sequence of protein moleculesO nucleotide sequence of the i gene

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Description: According to the operon hypothesis, the Z and Y genes of E. coli are classified as structural genes,since they specify the ?.structure of lactoseO structure of the plasma membraneO structure of the E. coli chromosomeamino acid sequence of protein mo

The Lac Operon is responsible for Lactose metabolism and transport in E.coli. This operon consists…

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Biology

According to the operon hypothesis, the Z and Y genes of E. coli are classified as structural genes, since they specify the ?. structure of lactose structure of the plasma membrane structure of the E. coli chromosome amino acid sequence of protein molecules O nucleotide sequence of the i gene

According to the operon hypothesis, the Z and Y genes of E. coli are classified as structural genes, since they specify the ?. structure of lactose structure of the plasma membrane structure of the E. coli chromosome amino acid sequence of protein molecules O nucleotide sequence of the i gene

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter14: Gene Regulation

Section: Chapter Questions

Problem 6TYU

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Similar questions

Which of the following is characteristic of genes and gene regulation in both bacteria and eukaryotes? (a) promoters (b) non-coding DNA within coding sequences (c) enhancers (d) operons (e) DNA located in a nucleus
A low level of expression of lac operon occurs at all the time.can you explain the logic behid this phenomena?
Why do eukaryotic cells not have a lac operon? A. Eukaryotic cells cannot transcribe multiple genes under one promoter B. Eukaryotic cells dont have repressors C. They can always metabolize lactose
40The accepted term for the functional investigation of a gene that starts with the gene sequence rather than a mutant phenotype is forward genetics. Yesorno 41Alu elements in the human genomes are examples of SINE elements. Yesorno 42The lac operon has three lac operators. Yesorno
You are studying an operon containing three genesthat are cotranscribed in the order hupF, hupH, andhupG. Diagram the mRNA for this operon, showingthe location of the 5′ and 3′ ends, all open readingframes, translational start sites, stop codons, transcription termination signals, and any regions thatmight be in the mRNA but do not serve any of thesefunctions.
The transcription of many bacterial genes relies on functional groups called operons, such as the tryptophan operon. What is an operon?
Bob determines that Red/pink protein is synthesized at much higher amounts than the Brown protein; Bob thinks that this is how the burger always is perfectly medium-rare (pink/red in the interior of the patty, with a small amount of brown at the burger’s surface). Bob also knows that R and B both are transcribed from the single operon. Briefly describe the biological mechanism allowing for accumulation of more R than B protein.
. All mutations that abolish function of the Rho termination protein in E. coli are conditional mutations;no cells with null mutations of the Rho-encoding genehave ever been isolated. What does this tell you aboutthe rho gene and its product?
The promoter of an operon is the site to which RNApolymerase binds to begin transcription. Certain basechanges in the promoter result in a mutant site towhich RNA polymerase cannot bind. Would you expect mutations in the promoter that prevent binding ofRNA polymerase to act in trans on another copy ofthe operon on a plasmid in the cell, or only in cis onthe copy immediately adjacent to the mutated site?
An E. coli cell as the following genotype for the lac operon system: I- OC Z+ / F’ I+. Which term best describes the regulation of expression of the beta galactosidase in this cell? Group of answer choices Inducible None of these Activated Always repressed Constitutive
1) A. What is the difference between a repressible vs, an inducible operon? B. Using diagrams and words, describe how the Lac Operon is regulated by different levels of lactose and glucose. Be sure to show what’s happening at the molecular level, including the roles of lactose, glucose the repressor protein, cAMP and CAP.
The following is a sequence of the leader region ofthe his operon mRNA in Salmonella typhimurium.What bases in this sequence could cause a ribosometo pause when histidine is limiting (that is, when thereis very little of it) in the medium?5′ AUGACACGCGUUCAAUUUAAACACCACCAUCAUCACCAUCAUCCUGACUAGUCUUUCAGGC 3′