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

Name: According to the operon hypothesis, the Z and Y genes of E. coli are
Uploaded: 2024-03-20T06:42:41.000Z
Channel: Bartleby
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…

Science

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

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter29: Transcription And The Regulation Of Gene Expression

Section: Chapter Questions

Problem 6P

See similar textbooks

Related questions

Q: 1 [Choose ] Choose Promoter Operator Regulatory Gene Active Repressor Protein Structural Genes 3…

A: Lac operon is basically a mechanism essential in the metabolism in the E.coli bacteria.

Q: that best fits the phrase below (1-20) Cis-acting B Post-transcriptional modification…

A: Francis Crick proposed central dogma. The RNA is formed from DNA with the help of enzyme RNA…

Q: The codon change (Gly-12 to Val-12) in human rasH that convertsit to oncogenic rasH has been…

A: The codons are the triplet sequences of the nucleotides like DNA (deoxyribonucleic acid) and RNA…

Q: Parts A-C show the genotypes for partial diploid strains of the lac operon. Gene names have been…

A: (a) I-P+O+Z+Y:- The I- allele means the lac repressor is inactive, so the lac operon is…

Q: You have created a null mutation of tRNA synthase for trp-tRNA (the synthase enzyme attaches the trp…

A: A null mutation is a mutation that completely removes a gene or part of a gene.In this case, the…

Q: Eukaryotes modify mRNA with an m7G cap: an N7-methylated guanosine linked via a 5′ to 5′…

A: The capping of mRNA is a mechanism that prevents the mRNA strand from being degraded by exonucleases…

Q: Below is the double stranded DNA sequence of part of a hypothetical yeast genome encoding a very…

A: Introduction Transcription : It Is The Initial Stage In Gene Expression, Which Involves "The…

Q: The symbols a, b, and c in the table below represent theE. coli lac system genes for the repressor…

A: Answer a. a = lacO; b = lacZ; c = lacI . Explanation: You've been told that a, b, and c stand for…

Q: Examine the following theoretical operon (gen) in E. coli which contains structural genes (genC,…

A: Question 6 - Gain of Function:A base substitution mutation in the operon could result in an altered…

Q: E. coli expresses a specific gene in the presence of lactose. The expression of this gene is under…

A: An operon can be defined as a unit of bacterial gene expression and regulation. It includes…

Q: Describe how the components of the trp operon system are affected by a mutation in trpC? Why is it…

A: A collection of genes known as the trp operon encodes the enzymes that enable bacteria to generate…

Q: What properties demonstrate that the lac repressor is a protein?Describe the evidence that it indeed…

A: Lac operon is negatively regulated by repressor protein.

Q: Please tell me: What's a mutation in moleculer terms? 2. When a mutation deletes a base in genomic…

A: DNA DNA content specific sequence of nitrogenous base in their stand. If the sequence is changed…

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: RNA knockdown has become a powerful tool in the arsenal of methods used to repress gene expression.…

A: "ANSWER A gene knockdown Is a temporary reduction in expression of genes induced by an analytical…

Concept explainers

Gene Interactions

When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.

Gene Expression

Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.

Topic Video

Question

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
O structure of the plasma membrane
O structure of the E. coli chromosome
amino acid sequence of protein molecules
O nucleotide sequence of the i gene

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.

Similar questions

If the coding region of a gene (the exons) contains 2,100 base pairs of DNA, would a missense mutation cause a protein to be shorter, longer, or the same length as the normal 700 amino acid proteins? What would be the effect of a nonsense mutation? A sense mutation?
The a/a operon is an inducible operon that controls the production of the sugar arabinose. When arabinose is present in a bacterium it binds to the protein AraC, and the complex binds to the initiator site to promote transcription. In this scenario, AraC is a(n). activator inducer repressor operator
Figure 28.41 gives some examples of recombination in IgG codons 95 and 96, as specified by the Vkand Jkgenes. List the codon possibilities and the amino acids encoded if recombination occurred in codon 97. Which of these possibilities is less desirable?
INTERPRET DATA Develop a simple hypothesis that would explain the behavior of each of the following types of mutants in E. coli. Mutant a: The map position of this mutation is in the trp operon. The mutant cells are constitutive; that is, they produce all the enzymes coded for by the trp operon, even if large amounts of tryptophan are present in the growth medium. Mutant b: The map position of this mutation is in the trp operon. The mutant cells do not produce any enzymes coded for by the trp operon under any conditions. Mutant c: The map position of this mutation is some distance from the trp operon. The mutant cells are constitutive; that is, they produce all the enzymes coded for by the trp operon, even if the growth medium contains large amounts of tryptophan.
Given the following tRNA anticodon sequence, derive the mRNA and the DNA template strand. Also, write out the amino acid sequence of the protein encoded by this message. tRNA: UAC UCU CGA GGC mRNA: protein: How many hydrogen bonds would be present in the DNA segment?
For the E. coli lac operon, when lactose is present: a. and glucose is absent, cAMP binds and activates catabolicactivator protein (CAP). b. and glucose is absent, the level of cAMP decreases. c. activated CAP binds the repressor protein to remove it from the operator gene. d. the cell prefers lactose over glucose. e. RNA polymerase cannot bind to the promoter.
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
The Events in Transcription Initiation Describe the sequence of events involved in the initiation of transcription by E. coil RNA polymerase. Include in your description those features a gene must have for proper recognition and transcription by RNA poIymerase.
Recombination in Immunoglobulin Genes If recombination between a Vkand Jkgene formed a CCA codon at codon 95 (Figure 28.41), which amino acid would appear at this position?
Discuss Concepts In a mutant strain of E. coli, the CAP protein is unable to combine with its target region of the lac operon. How would you expect the mutation to affect transcription when cells of this strain are subjected to the following conditions? Lactose and glucose are both available. Lactose is available but glucose is not. Both lactose and glucose are unavailable.
A scientist mutates elF-2 to eliminate its GTP hydrolysis capability. How would this mutated form of elF-2 alter translation? Initiation factors would not be able to bind to mRNA The large ribosomal subunit would not be able to interact with itiRNA transcripts tRNAi-Met would not scan mRNA transcripts for the start codon elF-2 would not be able to interact with the small ribosomal subunit.
Substrate Binding by RNA Polymerase RNA polymerase has t binding sites for ribonucleoside triphosphates: the initiation site and the elongation site. The initiation site has a greater Km for NTPs than the elongation site. Suggest what possible significance this fact might have for the control of transcription in cells.