Q: compare how histones and micro RNA control gene expression.
A: Histones are protein molecules associated with the DNA structure that control it's activity. Micro…
Q: Explain how DNA methylation and the formation of a DNA loop control the expression of the Igf2 gene…
A: ANSWER - Before giving the answer there are few words which we have to understand .…
Q: List steps in the process of gene expression thatpotentially could be regulated.
A: Gene expression denotes the process by which the coded genetic material in the double stranded DNA…
Q: Epigenetic effects on gene expression may occur through covalent modifications of ________ and…
A: Epigenetic modifications are the alterations that occur in DNA and chromatin . It includes :- A )…
Q: researchers identified the important role of GNAQ in both development and cancer
A: GNAQ is G Protein subunit Alpha Q.It is a protein coded gene present on chromosome 9.It is a guanine…
Q: Describe three ways that the function of a regulatory transcription factor can be modulated.
A: Gene is a functional unit of heredity. A gene is a sequence of nucleotides in genome that codes for…
Q: Predict the consequence of a mutation in the lac I repressor gene that produces repressor protein…
A: The ‘Lactose operon’ (lac operon) is a group of genes that consist of a single promoter. It is…
Q: Describe the role of transcription elements in regulation of gene expression in eukaryotic cells.
A: Transcription It is process in which the DNA sequence of a gene is copied or transcribed in RNA…
Q: explain how covalent modification of proteins regulate gene expression
A: Enzyme based modification of proteins is called a covalent modification. The modification of the…
Q: Explain the single transcription factor can be both an activator and a repressor
A: Introduction Protein is the key biomolecule in the biological system, any important physiological…
Q: Explain how/why Dolly the sheep is a powerful example of the importance of the regulation of gene…
A: Gene expression includes transcription and translation.
Q: Explain how telomerase expression contributes to theimmortality of cancer cells
A: The tumor cells are said to be immortal due to the expression if telomerase enzyme. The telomerase…
Q: describe Threshold effects in gene regulation
A: A gene is a short stretch of nucleotides present on a chromosome or DNA molecule, that codes for the…
Q: Explain Molecular Mechanisms of Transcription Repression and Activation.
A: MOLECULAR MECHANISM OF TRANSCRIPTION : during transcription , a DNA molecule is copied into RNA…
Q: Briefly explain the steps to induce the expression of gene of interest using IPTG
A: IPTG, also known as isopropyl -D-1-thiogalactopyranoside, is a biochemical agent that mimics…
Q: Compare and contrast regulation of gene expression in prokaryotes vs. eukaryotes.
A: Prokaryotic organisms are single celled organisms that lack a cell nucleus,and their DNA therefore…
Q: Describe the mechanisms by which gene regulation is controlled by changes in the concentration of…
A: Autoinducers are small molecule (Low Molecular weight) proteins readily diffusible through the…
Q: A) List the steps for gene expression in prokaryotes and eukaryotes. B) Relate the differences in…
A: The gene expression the process in which the genetic information present in the DNA (gene) is copied…
Q: Describe the basic models of transcription factor families, the two transcription factors each…
A: Transcription factors (TFs) are proteins that regulate gene transcription. They are trans-regulatory…
Q: During certain stages of development, the requirement forcertain gene products may require gene…
A: A gene is a stretch of nucleotides present in the DNA. It codes for the synthesis of an RNA or…
Q: Explain how iRNA works to down-regulate gene expression.
A: A mutation is a permanent change in the DNA of a cell such that the sequence deviates from what is…
Q: We know that eukaryote gene regulation can occur at any point in the process of gene expression.…
A: Given: We know that eukaryote gene regulation can occur at any point in the process of gene…
Q: Explain in detail the role of super-enhancers. Give some examples. How the super-enhancers can be…
A: There are trillions of cells in the physical structure. They give the body structure, absorb…
Q: Describe how the generation of functional beta cells from stem cells requires an extensive knowledge…
A: Beta cells produce insulin, a hormone that regulates the amount of glucose (a form of sugar) in the…
Q: Indicate whether the protein binds directly or indirectly (assuming it does) to DNA and whether to…
A: Introduction :- DNA acts the genetic material of the cell because it have all the genetic…
Q: Draw a diagram to illustrate how a concentration gradient of a transcription factor along the…
A: In drosophila the anterior posterior axis is determined before birth due to its maternal effects…
Q: (a) Did deletion of any of the possible control elements cause areduction in reporter gene…
A: Gene expression is a process by which the genes are turned on to form RNA and proteins. DNA…
Q: Explain how regulation of gene expression can altergene function
A: Genes are the structural and functional units of heredity. Genes carry deoxy ribo nucleic acid…
Q: Describe some of differences between control of gene expression in prokaryotes and in eukaryotes
A: The mechanism by which information from a gene is used in processing a functioning gene product…
Q: Give examples of genes that affect development in fruit flies by regulating gene expression at the…
A: Gene is a functional unit of heredity. A gene is a sequence of nucleotides in genome that codes for…
Q: Describe the roles of promoters, enhancers, silencers, andinsulators in gene expression.
A: Gene expression is defined as the process by which genetic data encoded inside a gene is used to…
Q: Experiments show that mutations at gene E lead to non-repressible transcription of trp genes. Why?
A: Ans: Tryptophan operon: It is the type of repressible operon, which is used in cells for the…
Q: Explain the differences between constitutive expressed genes and regulated genes.
A: Genes can be defined as the unit of inheritance, which is transferred from one parent to offspring…
Q: Define the Regulation of gene expression in bacteria
A: Genes can be found in all cells. Genes are the carriers of information on hereditary material. The…
Q: Describe three types of post-transcriptional regulation of protein coding genes.
A: Introduction Genome is referred to the total amount of DNA a single haploid cell contains. Genome…
Q: Describe, in details, how acetylcholine signal molecule can trigger gene transcription via GPCR and…
A: Acetylcholine : It is the chief neurotransmitter of the parasympathetic nervous system , the part of…
Q: Explain why loss-of-function hedgehog and smoothened mutations yield the same phenotype in flies,…
A: The Hedgehog signalling pathway is responsible for transferring information to embryonic cells.…
Q: Describe ways to achieve post-transcriptional control of gene expression
A: Transcription is the process in which RNA is transcribed with the help of the DNA template. In the…
Q: Explain how a gene knockdown reagent, such as RNAi or a morpholino, could interfere with expression…
A: Gene knockdown is a mechanism or technique that helps in the reduction of gene expression. It can…
Q: Compare and contrast bacterial and eukaryotic gene expression mechanisms.
A: Crick established the central dogma of molecular biology by explaining the flow of genetic…
Q: "Transcriptome Analysis Reveals Profiles of Expressed Genes in Cellsand Tissues". Define this ?
A: Transcriptome analysis is the study of the transcriptome using high-throughput methods, such as…
Q: Can methylation state of the promoter influence the level of gene expression? Briefly describe how…
A: In eukaryotes, DNA methylation occurs by an enzyme known as DNA methyltransferase. Where the…
Q: Give three examples of the importance of consensus sequences to gene expression.
A: The transcription is a process through which information in the DNA molecule is transcribed into…
Q: You observe that a particular gene is being transcribed during development. How can you tell whether…
A: The chromosome contains a number of genes that encode proteins and these genes when expressed in the…
Q: Choose ONE example of control of gene expression in eukaryotes and describe it in detail. Identify…
A: Transcription is the method of making messenger RNA (mRNA) using the enzyme RNA polymerase and then…
Q: Describe which enzymes are required for lactose and tryptophan metabolism in bacteria when lactose…
A: Tryptophan is aa that is required for proper newborn growth as well as the formation and maintenance…
Q: Compare and contrast the role of promoter and operators with enhancers and repressors.
A: Nucleus is a main controller of the cell which carries genetic instructions . It contain thread like…
Q: Describe how transcription is terminated with and without Rho factor.
A: Introduction- Transcription is the genetic process that coverts the genetic material information…
Step by step
Solved in 2 steps
- Explain how/why Dolly the sheep is a powerful example of the importance of the regulation of gene expression.Give two examples of how DNA bases and chromatincan be modified to regulate gene expression, and explainwhy these kinds of modifications result in increased ordecreased gene expression.Give and briefly explain two examples of how gene expression may be repressed without altering the gene-coding sequence.
- Which mechanisms for regulating gene expression may be applied for the treatment of such diseases? Propose a method of treatment. Explain how it might work. Reference: https://link.springer.com/article/10.1186/ar3317Describe the effects of the mutation causing the p21 promoter to no longer bind p53 on cell signaling pathways and metabolism or cell cycle control.A mutation occurs in a gene, resulting in it being expressed at the wrong time during development. Where is the mutation most likely to be found? a) In the transcription start site (TSS) b) In a TF binding site in the cis-regulatory region c) In the coding sequence d) In the 5' UTR
- Compare and contrast regulation of gene expression in prokaryotes vs. eukaryotes.Please answer Discuss the mechanisms by which transcription factors influence the reprogramming of somatic cells towards an embryonic stem cell like fate. Describe the key scientific factors involved in the creation of these cells and their potential applications in cell therapy.Describe the mechanisms by which gene regulation is controlled by changes in the concentration of small molecules including quorum sensing
- Describe three ways that the function of a regulatory transcription factor can be modulated.Predict the consequence of a mutation in the lac I repressor gene that produces repressor protein that is able to bind to the operator, but not able to bind allolactose.?Compare and contrast the role of promoter and operators with enhancers and repressors.