Q: Describe the difference between positive control andnegative control of gene expression.
A: An Operon is a unit of structure and function that consists of the clusters of regulatory genes…
Q: In general, what are the effects of histone acetylationand DNA methylation on gene expression?
A: Modification of DNA and the associated proteins is one of the mechanisms of regulation of gene…
Q: Which of the following is TRUE about eukaryotic gene expression?
A: Eukaryotic Gene Expression is one of the most complex processes because every cell in the body had…
Q: If the gene product is protein then why not to provide these protein from exogenous source to meet…
A: DNA undergoes transcription to form RNA which then undergoes translation to form DNA.
Q: Which natural genetic mechanism is responsible for preventing the expression of genes that are…
A: DNA is made up of numerous molecules known as nucleotide. A non-sense mutation is a type of mutation…
Q: Give and briefly explain two examples of how gene expression may be repressed without altering the…
A: Repression Vs Activation:To begin with, activation of a gene involves gene expression whereas…
Q: What is effect of turning on and off of genes? How do we measure gene expression? What is gene…
A: Answer1) The effect of turning a gene on and off is observed on its expression and ultimately on the…
Q: What useful information is obtained by detecting expressionof specific genes?
A: The DNA forms the genetic basis of life. It possesses the genes that carry information for the…
Q: What are the causes affecting by regulation of gene expression?
A: The regulation of genetic expression is likely to influence the phenotypic expression. The…
Q: What is the purpose of CAP and CAMP in gene regulation?
A: A wide range of mechanism carried out by the cells that act to induce or repress the synthesis of…
Q: Explain the posttranscriptional control -Gene expression ?
A: posttranscriptional control -Gene expression
Q: Describe the relationship between protein expression level and protein activity level. How could a…
A: Protein formation is a very crucial step because it is a protein which is the ultimate functional…
Q: Explain
A: The process by which information encoded in a gene is used to control the assembly of a protein…
Q: what is meant by gene expression and which are the 5 most regulated steps in this process, explain…
A: So, here we are going to learn about gene expression and the regulation of gene expression in…
Q: Describe and give an example of each of the following levels of gene expression control in…
A: Genes are a set of nucleotides sequence that carries information to be passed on from one generation…
Q: Which of the following results in transcriptional attenuation?
A: In hereditary qualities, attenuation is a proposed mechanism of control in some bacterial operons…
Q: What does it mean to say that gene expression is colinear?
A: A gene is a functional segment of DNA. A process by which the information which is present on the…
Q: How do we know that expression of the information encoded in DNA involves an RNA intermediate?
A: The genetic material of the cell, that is, the DNA (deoxyribonucleic acid) comprises various genes…
Q: What are the basic differences between prokaryotic and eukaryotic regulation of gene expression?
A: Introduction - A single prokaryotic cell makes up a prokaryote. In plants, animals, fungi, and…
Q: Many genes generate different products depending on the type of cell expressing the gene. How is…
A: The process of generation of different protein products from the same pre-mRNA transcript is called…
Q: explain which controls over gene expression are likely to be very brief, which may be long lasting,…
A: DNA and RNA are the types of nucleic acids that carry genetic information. DNA is transcribed to…
Q: What region would provide cell type-specific expression of genes? region What site would…
A: The mRNA is given in the figure. The mRNA undergoes the process of translation to produce protein.
Q: What is a CpG island? Where would you expect one to be located? How does the methylation of CpG…
A: A gene is a stretch of nucleotides present in the DNA. DNA or deoxyribonucleic acid is a polymer of…
Q: Which of the following statements about the differential expression of human genes is correct?
A: There are three postulates of differential gene expression, two of which states that - 1. Every…
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: Protein levels and mRNA levels for a particualr gene don’t always match. For example, the GCN4 gene…
A: Gene expression techniques such as PCR (polymerase chain reaction), microarrays and some assays such…
Q: How do we know that small noncoding RNA molecules canregulate gene expression?
A: A non-coding RNA is a kind of RNA molecule that is not translated into a protein. The DNA sequence…
Q: Which of the following statament is NOT TRUE about gene expression?
A: Central dogma consists of replication, transcription and translation.Replication is the process of…
Q: List and describe four mechanisms used during eukaryotic regulation of gene expression that are NOT…
A: Eukaryotes means those organisms which has true nucleus(true nuclear envelope)while prokaryotes have…
Q: Which of the following statements is most consistent with the pattern of gene expression shown in…
A: Gene expression is defined as the process by which the instructions and directions present in the…
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: Identify the mechanisms of transcriptional,posttranscriptional and translation control of gene…
A: Transcription is controlled by limiting the amount of mRNA that is produced from a particular gene.…
Q: What are the Effects of One Gene on the Expression of Another Can Reveal the Order of Action?
A: When the effect of gene is modified under the influence of another gene, that is is known as…
Q: Two component systems are common in bacteria to regulate the expression of specific genes in…
A: According to the question, Two-component systems are common in bacteria to regulate the expression…
Q: What are the two major processes that allow a gene to be expressed? What is the difference between…
A: Gene expression. Process in which encoding of genetic material take place which contain information…
Q: List the steps in gene expression that are potentiallysubject to regulation.
A: Gene regulation is the process of controlling which genes in a cell's DNA are expressed and thereby…
Q: Give two examples of how gene expression may be repressed without altering the coding sequence.
A: Epigenetics is the study of how our behaviors and environment affect the way our genes work.
Q: Which of the following scenario will result in greater consequences in terms of gene expression?…
A: Gene expression is basically the process in which the gene (contained typically in a DNA) is…
Q: Describe two different types of pre-transcriptional control of gene expression? Give an example of…
A: Gene expression can be controlled at various levels which include Pre transcription regulation…
Q: Which one of the following describes an epigenetic modification? O A point mutation in the coding…
A: A methyl group bound to DNA inhibit transcription of gene. This sentence denotes an epigenetic…
Q: What role does an operator sequence serve in bacterial gene expression regulation? Describe one…
A: As per the honour code, we are entitled to do only one question at a time. So, I am providing the…
Q: Two methods for functionally inactivating a gene without altering the gene sequence involve dominant…
A: RNA interference, also known as RNA silencing, is a biological process that involves the involvement…
Q: Which mechanisms for regulating gene expression may be applied for the treatment of such diseases?…
A: Gene expression is the process by which information from a gene is used to make a protein. Gene…
Q: Explain how epigenetic changes may be targeted to specific genes.
A: Epigenetics changes are the heritable changes in phenotype i.e. the gene expression without…
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- When CAMP binds to the Catabolite Activator Protein (CAP), it causes a conformational change on the protein, which results in binding to the CAP- binding site on the DNA and molecule is known as a(n) of the lac operon. This conformational change induced by the binding of another transcription activation; allosteric effect transcription repression; binding effect translation; distortion effect mutation; interactive effect attenuation; compression effect O O O OWhich of the following would be used to describe a gene that is transcriptionally controlled by activator ahd/or repressor proteins? Constitutive Regulated Environmental-independent. Permanently repressed. Permanently enhanced. Moving to another question will save this response. 144 Hz ms CURVED Optix MAG271C CAMING Firameless Desgn Gomine Os0 APP msi High Rofresh Rate Fast Respense Time Curved GamingWhich of the following is NOT true about cis-regulatory elements (CREs)? Group of answer choices Enhancers, silencers and promotors can be located anywhere in relation to the gene Enhancers are involved with increasing gene expression CREs often contain motifs that allow transcription factors to bind CREs are involved in determining the timing, location and amount of gene expression
- The Assembly of Class III Transcription Initiation Complexes consists of TATA-binding protein (TBP) TBP-associated factor (TAF) Both NoneControl of gene expression in eukaryotic cells occurs at which level(s)? a. only the transcriptional level b. epigenetic and transcriptional levels c. epigenetic, transcriptional, and translational levels d. epigenetic, transcriptional, post-transcriptional, translational, and post-translational levelsTranscriptional regulators are proteins that bind to promoters (the 5-flanking regions of genes) to regulate their transcription. Assume that a particular transcription regulator normally promotes transcription of gene X, a transport protein. If a mutation makes this regulator gene nonfunctional, would the resulting phenotype be similar to a mutation in gene X itself? Why or why not?
- Which of the following is not an example of translational control of mRNA? Localization bicoid mRNA to the anterior region of Drosophila O CPEB binding to the 3' UTR Polyadenylation of 3' UTR Assembly of 4 hemoglobin subunits into a quaternary structureRegulation of gene expression in eukaryotes can occur: Group of answer choices at the post-transcriptional level, by changes in mRNA stability. all of these at the post-translational level, by modifications to activate proteins. at the transcriptional level, mediated by specific proteins called transcription factors. at the chromatin level, by changes in the state of condensation of chromatin.LysR regulators like llvY repress transcription from their own promoters. This is called a negative feedback loop. Why might negative feedback be a good way to control expression of a transcriptional repressor? This type of negative feedback loop ensures that ilvC transcription will always be repressed when llvY levels are low, and ilvC will be transcribed highly when llvY levels are high. This type of negative feedback regulation ensures that ilvY is never transcribed. Since llvY is a transcriptional repressor, it will slow down cell growth by blocking transcription. So, llvY represses it's own transcription so that no llvY can ever be made, and the cell can grow. This type of negative feedback loop ensures that there is always a moderate amount of llvY. When IlvY levels fall too low, transcription from the promoter will increase since IlvY won't be able to repress it's own promoter. This negative feedback also ensures that IlVY levels don't rise too high - when llvY levels are high,…
- Now read this abstract from a 2013 journal article What is the authors' explanation of how Gal80p works? Note UASG from the question above is the same as UASGAL The DNA-binding transcriptional activator Gal4 and its regulators Gal80 and Gal3 constitute a galactose-responsive switch for the GAL genes of Saccharomyces cerevisiae. Gal4 binds to GAL gene UASGAL. (upstream activation sequence in GAL gene pro- moter) sites as a dimer via its N-terminal domain and activates transcription via a C-terminal transcription activation domain (AD). In the absence of galactose, a Gal80 dimer binds to a dimer of Gal4, masking the Gal4AD. Galactose triggers Gal3-Gal80 interaction to rapidly initiate Gal4-mediated transcription activation. Just how Gal3 alters Gal80 to relieve Gals0 inhibition of Gal4 has been unknown, but previous analyses of Gal80 mutants suggested a possible competition between Gal3-Gal80 and Gal80 self-association interactions. Here we assayed Gal80-Gal80 interactions and tested for…In the regulatory switch experiment, which level of gene expression regulation is the focus? Regulatory switch Enhancer Mouse Enhancer Bat Enhancer Bat-mouse translation level regulation transcription level regulation post-translational regulation O post-transcriptional regulation (RNA modification)Regulation of transcription is mediated by proteins that first must bind to specific sequences/elements that are present in DNA. Fill in the table below based on your knowledge of the different sequences and proteins involved in the regulation of eukaryotic gene expression. Regulatory sequence Category of Protein that Binds Effect on Transcription of Associated Gene Generic or Gene-Specific Regulation? Core Promoter Element Activator Silencer