Match the parts of the Lac operon with the correct name. A C DNA MRNA RNA polymerase

Q: Discuss any 1 gene regulation mechanism. Describe the gene expression in this type of gene…

A: introduction :  Gene expression is the process of turning genetic information into a functioning…

Q: 12445 RD-Hom 4(167-277) A(194-277) A(97-138) A(97-167) 6 A(97-194) N595A 7890 A(619-723) HD 10…

A: A regulatory protein regulates the expression of a gene by binding with that gene through its DNA…

Q: Identify the molecule that best matches each description. Each answer may be used once, more than…

A:

Q: To identify transcriptional regulatory elements, reporters containing 100 base pairs of Promoter…

A: Transcriptional regulatory elements are the genetic segments that act as the binding sites for…

Q: Mutation in the operator that reduces the affinity of the operator for the repressor protein…

A: Lac operon is an inducible operon. When lactose is present in medium, then lac operon starts.

Q: Some eukaryotic promoters contain an element positioned around nucleotide +1 called a…

A: The transcriptional initiator (Inr) for mammalian RNA polymerase II is a DNA sequence element that…

Q: Chromatin Immunoprecipitation (ChIP) experiments enable researchers to measure the levels of…

A: LPS (lipopolysaccharide) treatment results in the recruitment of the transcription factor NfkB and…

Q: Gene expression is Usually regualated at the initiation of transcription.  True  False

A: In particular, gene expression is controlled on two levels. To begin with, transcription is…

Q: Match each of the following descriptions to the type of regulatory RNA affecting a "target" gene…

A: Of course! Let's break down each match:This regulatory RNA may increase transcription of the target…

Q: Draw a small piece of mRNA in the correct location.

A: Genetic information flows from DNA to RNA to proteins. This is also known as the central dogma of…

Q: Below is the genotyping results using PCR and gel electrophoresis for a DNA-binding regulatory…

A: The transcription factor is responsible for binding to the promoter. It leads to proper binding of…

Q: A gene product of unknown function was subjected to both two hybrid analysis and BioID. In the two…

A: Two-hybrid analysis is a molecular biology technique used to discover protein-protein interactions…

Q: E. coli has five genes that code for enzymes that make tryptophan. These genes are regulated by a…

A: When a group of related genes exist under the control of a single promoter, it is referred to as an…

Q: The statement below may be true or false. If it is true then type "true" in the box below. If it is…

A: DNA that is silenced can not bound by transcrpition fators

Q: Match the following changes with the correct responses. (Some answers may be used more than once.…

A: Introduction: Histones are proteins that act as spools for the DNA to wind around. It plays a vital…

Q: eron ns are only produced certain molecules are und in the cell. eron = are only read when molecules…

A: Positive genetic regulation refers to the type of regulation mechanism that enables the expression…

Q: Name a repressive histone modification (be specific)

A: Histones are defined as highly basic proteins that are found in eukaryotic cell nuclei that pack and…

Q: 10. Modify the diagrams below to reflect the activation and repression of lac operon. Use arrows,…

A: Lac operon contains genes involved in metabolism. The genes are expressed only when lactose is…

Q: A. A mutation is recovered in the gene that encodes the lactose operon repressor protein (LacI).…

A: Lac operon is a simple prokaryotic group of genes for the metabolism of lactose. It consists of…

Q: Compare and contrast intragenic and intergenic suppressors.

A: Suppressor mutation is the second mutation that reverts or alleviates the phenotypic effects of an…

Q: the visual system, it is critical to keep a subset of neuronal genes in a repressed state to…

A: HAT play an important role  in regulations of gene expression. it helps to increase gene…

Q: (b) Bacteriophage 434 repressor SIN Which of the following is true regarding the interaction of the…

A: The 434 repressor is a protein that plays a key role in the regulation of gene expression in the…

Q: Four terms and statements related to gene regulatlon Match the correct term to each of the four…

A: According to the question, four terms and statements are related to gene regulation in bacteria are…

Q: The protein NK2 is a transcriptional regulator that functions both as a repressor and activator. To…

A: A regulatory protein regulates the expression of a gene by binding with that gene through its DNA…

Q: xplain any five of the following terminologies: gene regulation, enhancer or silencer sequences,…

A: Introduction: Genomics is an area within genetics that is associated with the sequencing and…

Q: ptoph had a mutation on the repressor, not allowing it to bind with tryptophan. The repressor is…

A: Operons are proteins encoded together as a block that performs specific functions and are involved…

Q: What is the regulatory region of the Trp operon that is involved in alternative transcription…

A: A set of genes known as the trp operon is discovered in the bacteria E. coli and codes for the…

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: c) You use chromatin immunoprecipitation to measure the location and amount of transcription factors…

A: Transcription factors are protein molecules which bind to specific DNA sequences to regulate gene…

Q: A mutation in the trp repressor gene that prevents the apo-repressor from binding the co-repressor…

A: Tryptophan operon Tryptophan operon is negatively regulated operon, it includes five gene, promotor,…

Q: Identify the eukaryotic level of gene regulation. Choose the correct answer below. a. Pre-…

A: Answer: Introduction: Eukaryotic cellular process is regulated in the transcription process and RNA…

Q: Which of the following is not a general description of the gene expression regulation mechanisms…

A: Gene expression regulation mechanisms helps to maintain the  rate of gene expression or to regulate…

Q: The following diagram show what is required for an active promoter of a gene of interest, where:A1 =…

A: Based on the given diagram, here are the predictions:Chromatin conformation: EuchromatinMethylation…

Q: Studying mis-splicing events on a cell-wide basis (i.e., all mis-splicing events in a cell type) can…

A: Studying mis-splicing events on a cell-wide basis (i.e., all mis-splicing events in a cell type) can…

Q: How is a corepressor different from an inducer? How is it similar?

A: A gene is a DNA-based functional heredity unit that delivers instructions for the production of RNA…

Q: Define the following terms:a. cistronb. operonc. miRNAd. siRNAe. snoRNA

A: Molecular biology is the field of biology that studies the composition, structure, and interactions…

Q: At 2:00 pm, you measured intracellular arginine at 100M. After addition of 200M of arginine to the…

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: 1. (a)  Binding of inducer protein to repressor protein     Gene is switched ON     Gene is…

A: Gene regulation is done with the help of the regulatory protein binding with the regulatory sequence…

Q: Compare and contrast the activities of an activator protein anda repressor protein.

A: Gene regulation is a mechanism by which cells increase or decrease the productivity of any specific…

Q: Which of the following accurately describes the function of HOTAIR? O It is a long non-coding RNA…

A: Option 1 is the correct answer.

Q: A mutation in which of the following would still allow RNA polymerase to bind to promoters but would…

A: To start transcribing a gene, RNA polymerase binds to the promoter region of the gene's DNA. It has…

Q: Draw/Diagram and describe Initiation of Transcription in a typical eukaryote. description should be…

A: Eukaryotes have three types of RNA polymerases, I, II, and III, and prokaryotes only have one type.…

Q: 12a. In what condition is the LacZ gene transcribed? ANSWER (in one sentence) 12b. Fill in the…

A: The lac operon is a cluster of genes, including the lacZ, lacY, and lacA genes, that are involved in…

Q: ose d CAP lac I repressor allolactose CAMP C RNA Pol promoter operator +1 lac Z lac Y lac A DNA

A: E.coli's Lac operon contains the genes required for the lactose metabolism. Genes involved in the…

Q: Which of the follow general transcription factors contains the protein TBP and binds to TATA box…

A: The correct answer is: a. TFIID TFIID is a general transcription factor that contains the…

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.