2. What is attenuation and what is its significance in prokaryotic gene regulation? Explain attenuation in detail using the Trp operon as an example.

Q: Predict the level of genetic activity of the lac operon as well as the status of the lac repressor…

A: There are two regulatory factors present in the lac operon of E.coli  These are the repressor…

Q: Assuming that the level of glucose is low, a mutation in the repressor associated with the lac…

A: The lac operon stands for lactose operon. These are a set of genes that are found in E.coli and…

Q: 4. Shown here is a regulation of a gene a) Is this a prokaryotic or eukaryotic gene? Explain in…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: 6. Riboswitches are RNA sequences found in the 5' untranslated region of messenger RNA (mRNA) that…

A: Riboswitches are regulatory elements that control gene expression in response to the binding of…

Q: 2. Mutations in bacterial promoters may increase or decrease the level of gene transcription. The…

A: Introduction A mutation is a change in the DNA sequence of an organism's genome that can occur…

Q: 26) If there is no lactose present in the cell of a bacterium with a "lac operon" the repressor…

A: Operon system is an example of prokaryotic gene regulation in which the expression of polycystonic…

Q: Part II. Gene Regulation with Operons 4. When bacteria find themselves in an environment rich in the…

A: The lac operon is a group of genes that encode enzymes needed by bacteria to metabolise lactose. The…

Q: Utilizing lactose operon, how can we explain how induction controls enzyme synthesis 2. Use…

A: An operon is a group of genes that code for proteins that are involved in a single cellular…

Q: 1. In E.coli transcription of the Lac Operon is known to be under Global control. For this operon…

A: The lac operon, found in E. coli, comprises genes responsible for lactose transport and metabolism1.…

Q: 12. You want to determine the location of the promoter and operator for an operon. To do so, you…

A: 1) If operator is removed, expression becomes constitutive 2) If promoter is removed, there should…

Q: Jacques Monod, one of the geneticists who won the Nobel Prize in medicine for deciphering the…

A: The synthesis of RNA from DNA is called transcription and synthesis of protein with the help of RNA…

Q: How does induction control enzyme synthesis using lactose operon?  2. Describe how level of a key…

A: By controlling the transcription of the mRNA which is needed for the enzyme synthesis, the genetic…

Q: what is an attenuator? (in context of a prokaryotic operon )

A: Operons are prokaryotic arrangements of multiple genes under the control of a single promoter. The…

Q: 1. why does the genome contain so many more genes for rRNA than mRNA? 2. why is it effective for a…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Explain the positive control of the lac operon A toxin was found to inhibit the production of CAMP…

A: Lac operon is the segment of DNA which includes cluster of genes for breaking down of lactose. The…

Q: Which of the following is false when the genes of the Lac operon are being tran- scribed in high…

A: Lac operon is a set of genes used by E.coli to metabolize lactose when glucose is not available for…

Q: 5. There are four genes in the FAK operon. a. How many mRNAs are encoded by this operon? b. The FAK…

A: Question 5 Answer a) There is only one mRNA that codes for four genes in the FAK operon.…

Q: 4. Predict the level of genetic activity of the lac operon as well as the status of the lac…

A: In lac operon, structural genes responsible for lactose metabolism are all under the control of a…

Q: 5. Use the table below to describe under what conditions the lac operator is turned on and off. Is…

A: The lac operon is a single-promoter operon that is necessary for the transport and metabolism of…

Q: In the presence of excess tryptophan, a repressor protein binds the operator of the trp operon and…

A: positive gene regulation in the presence of lactose and low glucose , the lac operon is expressed 20…

Q: 2) Briefly describe 6 different ways that eukaryotic cells typically regulate Gene Expression

A: Gene expression is the process by which a particular or a set of genes are expressed with the help…

Q: What statement is NOT true regarding transcription attenuation of amino acid biosynthetic operons?…

A: Amino acid biosynthesis is an anabolic process in which a molecule is synthesized as an end product.…

Q: . Genes A, B, and C encode enzymes A, B, and C, which are part of this biosynthetic pathway:…

A: If the gene A,B,C are presemt in the eukaryotes and bacteria and since 1 is prokaryotic and another…

Q: 5. As you know, the lac promoter is a poor intrinsic promoter: it is transcribed efficiently only…

A: Q 5.) Ans.The given question explores the lac operon's regulation in E. coli through mutagenesis and…

Q: 3. Draw the chemical mechanism (with electron-pushing arrows) for the first step of RNA splicing (as…

A: Introns are the intervening sequences that do not code for any functional gene product. Hence during…

Q: 8.

A: Genes are the units of heredity that constitute the genetic/hereditary material of living organisms.…

Q: How might the regulation of the lac operon change if a point mutation occurred that blocks the…

A: Lac Operon consists of structural (z y and a) , regulatory (I), promoter and operator genes in the…

Q: B Ix Paragraph Styles Dictate Sensitivit As a graduate student, Prof. Rolfes studied the E. coli…

A: Hi! Thanks for your question. As you have posted multiple questions and have not mentioned which…

Q: Briefly explain how the TRP operon can control the production of tryptophan.

A: A group of genes that are transcribe together to give a single mRNA molecule, which therefore encode…

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.