The illustration below shows the lac operon used in E. coll. Explain what is happening in the bottom picture.*

Q: The tryptophan operon is usually in the _______position and is inhibited by a/an_______ molecule.

A: Answer:  TRYPTOPHAN = It is an essential amino acid which is not readily synthesized by humans, we…

Q: Draw out an example of a plasmid operon set up using amp resistance (outside the arabinose operon),…

A: Plasmid is the extrachromosomal DNA generally found in bacteria (prokaryotic cell) that can…

Q: How do bacteria gain genetic variation What is an operon? Give one example and explain how it works

A: Introduction :- The difference in DNA between individuals or between populations is referred to as…

Q: In E. coli, induction in the lac operon and repression in the trp operon are both examples of a.…

A: Transcription, translation, post-transcription and post-translation. The process in which the gene…

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: components of an operon into the appropriate order

A: components of an operon into the appropriate order:…

Q: Here is a another cell with 2 copies of the lac operon. Same directions and points as the previous…

A: Lac operon is responsible for break down of lactose into glucose and galactose. It is the segment of…

Q: The lac operon is an example of ________ control in which the presence of an ________ is required…

A: lac operon is present in E.coli and it produce the enzymes which are required for the lactose…

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: Describe how to generate specific mutations in anyE. coli gene by gene targeting.

A: Gene targeting is defined as a genetic method which uses homologous recombination in order to modify…

Q: In the lac operon, the product of structural gene lacY is capable of

A: Lac operon It contains a operator, a promoter, repressor, and structural gene. The structural gene…

Q: Describe the terms: Transformation Operon Recombination

A: Hello you have asked question with multiple subparts. We will be able to answer only first three.…

Q: Na →→ K

A: An operon is a set/cluster of multiple genes which are transcribed together to produce a single mRNA…

Q: Which operon has a higher level of expression in bacteria grown on nutrient-poor agar plates, lac or…

A: Gene regulation at the level of transcription in bacteria is achieved by the operon model. Operon…

Q: Define the following terms: Operon ORF Promoter Terminator polycistronic Oric Sigma subunit Pribnow…

A: In keeping with the guidelines of Bartleby and in order to provide correct and quality answers,…

Q: In the presence of lactose and the presence of glucose the lac operon is not expressed Lacl is bound…

A: Introduction:- Lactose metabolism genes are found in the lac operon of E. coli. It is only expressed…

Q: Which of the following statements about the tryptophan operon in E. coli is TRUE?

A: Bacteria, for example, Escherichia coli need amino acids to endure or survive they have to assemble…

Q: Transformation is the process where bacteria take up a plasmid from the surrounding and then express…

A: Arabinose acts as an allosteric regulator of AraC, affecting which DNA sites it binds to and how the…

Q: The presence of _____ in the medium prevents CAP from binding to theDNA, resulting in _____ in…

A: CAP is the catabolite activator protein. It binds to a DNA region before the promoter of the lac…

Q: In the lac operon, how would gene expression be affected if each one of the following segments was…

A: The lac operon is basically a group of genes with a single promoter whose genes encode proteins that…

Q: Why trp operon has a higher level of expression than live operon in bacteria grown on nutrient-poor…

A: Operon is a genetic regulatory system that is found in bacteria and viruses. This system controls…

Q: The lac operon is controlled by two main proteins. These proteins a. both act in a negative…

A: The lac (lactose) operon functions during the transcription and translation of genes required for…

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

A: Hi, Thanks For Your Question.  Answer : Correct Option Is Ara O2.

Q: Describe how a superantigen such as toxic shock syndrome toxin can become lethal.

A: Toxic shock syndrome results due to the bacterial infection caused by Staphylococcus aureus. It is…

Q: Transduction is sometimes described as a mistake in the bacteriophage reproductive cycle. Explain…

A: Bacteriophage is the type of virus which infects a bacteria. A virus is a microorganism that has…

Q: Explain the The Operon Model: Negative Control ?

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

Q: In the presence of lactose and the presence of glucose the lac operon is not expressed . Lacl is […

A: In the presence of glucose as well as lactose, inhibitor/repressors gene is bound to the operator…

Q: Give the Genetic Proof of the Operon Model ?

A: An operon represents a genetic unit with one or more structural genes and an operator sequence and…

Q: The figure below is a portion of a Northern blot which shows the change in abundance of the HS-X…

A: Introduction  In molecular biology, a Southern blot is a technique for identifying a specific DNA…

Q: Refer to the lac operon image above to see the available choices. Which lettered item represents the…

A: A set of genes present in E.coli. that regulates the uptake of lactose from the surrounding…

Q: which of the following is true regarding UP elements? A. Occur between -40 and -60 of an E. coli…

A: RNA polymerase is an enzyme which runs in 5' to 3' direction. It synthesize RNA by utilising the…

Q: If tryptophan is presence in the culture media of E.coli then _________.  the promoter will be…

A: This question is based on tryptophan operon. The trp operon is an operon-a group of genes that is…

Q: In E. coli, the trp operon is on by default, while the lac operon is off. Why do you think that this…

A:

Q: Outline the operon theory using the lac operon as anexample

A: Operon consists of genes placed in sequential order. Lac operon has following genes- Regulator gene…

Q: Lạc Y [ Choose ] operator [ Choose ] Lạc Z [ Choose ] operon [ Choose ] trans-acting [ Choose ]…

A: Introduction:- Lactose metabolism genes are found in the lac operon of E. coli. It is only expressed…

Q: Complete the table below by choosing a term(s) in Column B that associates with the term in Column…

A: The repressor, LacI, binds to the operator sequence and prevents transcription of those genes unless…

Q: Figure 5 shows the lac operon structure in Escherichia Coli What will happen if substance S is…

A: Lac operon contains genes coding for proteins in charge of transporting lactose into the cytosol and…

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 eukaryotes, sequences that act as binding sites for proteins which alter the accessibility to RNA…

A: In prokaryotes, transcription and translation occur simultaneously as generation time is 20…

Q: Use the blanks on the left hand side to put the following statements in order (use numbers or…

A: Diauxic growth of Bacterium Also known as Bi - phasic growth. It is a phenomenon in which the…

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: The tryptophan operon of E. coli represents an example of a gene regulatory system which is: a…

A: The trp operon, found in the bacterium Escherichia coli is a group of genes that encode biosynthetic…

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: On this gene map, there are sections where large chunks of the same color are present. These might…

A: The gene or genes which gets transcribed when the operator is bound are known as operons.

Q: The DNA region below includes the lac operon. Identify all parts (by letter) that encode PROTEINS? P…

A: Lac operon is a group of genes with a single promoter that encodes proteins to transport lactose to…

Q: A mutation at the operator site of a positive inducible operon that causes the sequence of the…

A: The majority of mutations in the operator, the repressor's binding site, result in lesser…

Q: What would occur if the repressor of an inducible operon were mutated so it could not bind the…

A: The operon is the gene regulation system in prokaryotes that ultimately responsible for the…

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: The lac operon is an operon that is:   Group of answer choices A turned off whenever tryptophan is…

A: Operon is a series of Genes. It is polycistronic and mostly present in bacteria.

Q: consider the fec operon of Staphylococcus madeupiddis, which encodes an iron citrate uptake system.…

A: The fec operon is responsible for regulating the expression of iron in the cytoplasm of cell.

Bacterial Genomics

The study of the morphological, physiological, and evolutionary aspects of the bacterial genome is referred to as bacterial genomics. This subdisciplinary field aids in understanding how genes are assembled into genomes. Further, bacterial or microbial genomics has helped researchers in understanding the pathogenicity of bacteria and other microbes.

Transformation Experiment in Bacteria

In the discovery of genetic material, the experiment conducted by Frederick Griffith on Streptococcus pneumonia proved to be a stepping stone.

Plasmids and Vectors

The DNA molecule that exists in a circular shape and is smaller in size which is capable of its replication is called Plasmids. In other words, it is called extra-chromosomal plasmid DNA. Vectors are the molecule which is capable of carrying genetic material which can be transferred into another cell and further carry out replication and expression. Plasmids can act as vectors.