Which of the following mode of gene regulation CANNOT be regarded as "transcriptional regulation" Histone methylation Histone deacetylation (c) Differential RNA splicing DNA methylation Selective RNA degradation Histone acetylation
Q: The recognition sequence to which RNA polymerase binds at the initiation of transcription is found…
A: Ans- False The recognition sequence to which RNA polymerase binds at the initiation of transcription…
Q: Consider this list (below) of steps involved in transcription. These steps are out of order.…
A: Replication, transcription, and translation are used by all cells to keep track of their genetic…
Q: Describe the advantages and disadvantages of the following mechanisms of regulation: Transcriptional…
A: Mechanisms of regulation are very important in regulating the transcription and translation…
Q: A molecule that reduces the activity of an enzyme by binding to a site other than the site at which…
A: A molecule that reduces the activity of an enzyme by binding to a site other than the site at which…
Q: For each of the following types of gene regulation, indicate whether it occurs in eukaryotes only,…
A: a. Differential splicing: It is the process by which certain exons are skipped during splicing to…
Q: Which of the following would you expect to have the fastest response in the cell? Protein…
A: Protein phosphorylation is a reversible post-translational modification of proteins in which an…
Q: Which of the following mechanisms may create multiple mRNAsfrom the same gene?a. posttranslational…
A: Introduction A genome is consisting of transcriptionally active genes. These genes form mRNA as…
Q: What type of genetic regulation seems to be the most similar between prokaryotes and eukaryotes?…
A: Genetic regulation is defined as the process of switching genes "ON" and "OFF" to see in a cell's…
Q: Discuss how the expression of a protein can be regulated post transcription in eukaryotic cells…
A: The eukaryotic cell after transcription called the primary transcript is not considered as messenger…
Q: What epigenetic modification(s) would you expect to see near a gene promoter where transcription is…
A: The histones undergo methylation and acetylation for close and loose packaging of the DNA. The…
Q: The gene for triose phosphate isomerase in maize (a corn plant) spans over 3400 base pairs of DNA…
A: The post-transcriptional modifications are observed during the processing of other transcripts which…
Q: . true or false a) Capping is the process of adding poly-guanido methyl in the mRNA. (true/false)…
A: Ans a.) Capping is the process of adding poly-guanido methyl in the mRNA. True # It is a kind of…
Q: Which of the following is not a control for translation? Methylation of DNA promotor Increase the…
A: Translation takes place in the cytoplasm (eukaryotes) where the mature mRNA is converted into chain…
Q: Which of the following is INCORRECT regarding methylation? The methylation states in a DNA sequence…
A: In methylation process methyl groups are added to the DNA without changing its sequence to change…
Q: Rat liver mannan-binding protein gene yields two different mRNA sizes - 1.4 and 3.5 kb. O…
A: Ribonucleic acid or RNA is a nucleic acid present in all living cells that has structural…
Q: A mutation within a gene sequence changes the start codon to a stop codon. How will this mutation…
A: Mutations are changes that occurs in the deoxyribonucleic acid (DNA) sequence, either due to…
Q: A strain of bacteria possesses a temperature-sensitive mutation in the gene that encodes the rho…
A: Transcription is the process of transcribing DNA into mRNA with the help of RNA polymerase. Rho…
Q: In eukaryotic cells, alternative splicing of the pre-mRNA (primary transcript) to form different…
A: The correct option is B i e, post- transcriptional modification. Explanation:.…
Q: Which of the following is not a control of gene transcription? O The repression of a gene by the…
A: The transcription is the process by which RNA is produced from the DNA template by different…
Q: There are two variants of the enhancer sequence found in people. One has the sequence CACTAAAG, and…
A: Regulatory sequences or elements are the DNA sequences that serve as a binding site for regulatory…
Q: Select the following descriptions of gene transcription regulation in eukaryotes that are…
A: * Post translational modification are covalent and enzymatic modifications of proteins that follows…
Q: Which of the following methods is utilized by eukaryotes to control their gene expression that is…
A: Gene regulation is the process of controlled expressions of specific gene from the entire genome of…
Q: The most common type of regulation of gene expression occurs at the level of transcription. Name…
A: • Regulation of gene expression can occur at, 1) Post - transcription level by miRNA or siRNA 2)…
Q: How would the following affect BOTH transcription and translation of a particular multi- exon gene…
A: Transcription and translation are two distinct processes that allow the expression of a gene.…
Q: Which of the following DNA regions is NOT involved in gene expression regulation in eukaryotes?…
A: Introduction Gene expression is the process through which information from a gene is used to build a…
Q: Which of the following gene expression regulatory mechanisms saves the most energy but takes the…
A: Gene regulation expression defines a wide range of molecular mechanisms, that are used by the cell…
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 step is NOT involved in eukaryotic MRNA synthesis? O Elongation O…
A: DNA is the nucleic acids present in the organisms. DNA is the deoxy-ribose nucleic acid in which…
Q: Which of the following processes includes the removal of introns in the primary RNA transcripts?…
A: The process which is associated with removal of Introns in the primary RNA transcripts is SPLICING.…
Q: When regulatory protein binds to a mature mRNA in the cytoplasm and prevents it from binding to a…
A: Translational regulation is the mechanism that aims to control the levels of protein synthesis from…
Q: Which level of gene regulation is involved when alternative sigma factors change the recognition of…
A: Alternative sigma factor in association with core RNA polymerase provide a mechanism of cellular…
Q: Which of the following components is involved in the initiation of transcription? Group of answer…
A: Reply and Explanation: 1 Record begins when a record factor ties to the advertiser alongside a RNA…
Q: Methylation of certain lysine residues in histones leads to gene silencing, whereas methylation of…
A: Histone methylation is a process wherein certain amino acids in a histone protein are modified by…
Q: For the following gene, which type of regulatory sequence has likely been deleted in mutant 1?…
A: Transcription is the process of expression of genes and by this process RNA transcript is produced…
Q: karyotic regulation of gene expression occurs at the level of _____ transcription splicing and…
A: Given: Need to explain the Eukaryotic regulation of gene expressions
Q: TRUE OR FALSE Errors in transcription can lead to silent mutations encoding the same amino acid or…
A: Silent mutations are the type of mutations in which base substitution has no effect in…
Q: Eukaryotic transcriptional repressors may act by Choose an answer below competing for a binding…
A: Eukaryotic transcriptional repressor : These are the proteins which bind to the specific sites of…
Q: Which of the following characterize RNA polymerase Il transcriptional termination in eukaryotes?…
A: Transcription: Transcription is a step by step process by which the information stored in a strand…
Q: Which of the following is least related to the other items? Group of answer choices inducer…
A: The flow of genetic information in a biological system is explained by central dogma and it involves…
Q: Gene expression in mammals can be increased by which of the following mechanisms?…
A: Nucleosome is the packaging unit in eukaryotes. It is a fundamental subunit of chromatin.…
Q: The sigma factor protein's role in transcription in E. coli includes which of the following?…
A: Sigma factors are subunits of RNA polymerase in bacteria. They control synthesis of RNA intitiation.…
Q: Differential lengths of poly-A tails affect mRNA stability. Pre-transcriptional control…
A: According to bartleby guidelines only first question is to be answered. So upload other questions…
Q: A particular gene in Drosophila shows MRNA transcript accumulation in both the anterior and…
A: In Drosophila, mRNA transcript of a gene is present both at the anterior and posterior regions of…
Q: Which of the following is involved in pre-transcriptional gene regulation? a.) alternative splicing…
A: Transcription is a process of converting the genetic information in the DNA to RNA in the nucleus of…
Q: Which of the following is not a general description of the gene expression regulation mechanisms…
A: INTRODUCTION Gene regulation is the process of controlling which genes in a cell's DNA are expressed…
Q: Which method is most likely used to regulate the expression of a gene that is active during…
A: If a gene is active during the embryonic stage but was not active during adult life this means that…
Q: DNA methylation is a potential example of A. post-translational control B. translational control C.…
A: DNA methylation is a biological process by which methyl groups are added to the DNA molecule. In…
Step by step
Solved in 2 steps with 3 images
- Which of the processes listed below are common in the post-transcriptional modification of eukaryotic mRNA? I. Capping of the 5' end with GMP II. Addition Ill. Methylation of ribose 2'-hydroxyl groups IV. Capping at the 3 end with AMP I and II I, II, and III I. Il. Ill and IV I and IVThe phosphorylation of the RNA polymerase II tail is important for the following EXCEPT a.the formation of transcription initiation complex b.RNA processing c.the dissociation of most general transcription factors d.initiation of transcription by RNA polymerase IIIn response to potentially toxic substances (e.g., high levels of iron), eukaryotic cells often use translational or posttranslational regulatory mechanisms to prevent cell death, rather than using transcriptional regulatory mechanisms. Explain why.
- Which of the following is not a general description of the gene expression regulation mechanisms that operate in eukaryotic organisms? transcriptional-level control processing-level control translational level-control replication-level controlsDesign a transcriptional circuit that regulates the expression of β-galactosidase in a eukaryoticcell, such that the enzyme is produced in the presence of lactose and repressed in the absenceof lactose. Use at least one of the following elements: histone acetyltransferase, histonedeacetylase, chromatin remodeling complexMethylation of H3K9 by itself silences genes, but if H3K4 and H4K20 are also methylated, the combination of modifications stimulates transcription. What conclusions can you draw about this?
- Explain how the expression of a single gene can be quickly,efficiently,and specifically shut down at the transcriptional,posttranscriptional,and posttranslational stages through thecoordinated expression of a transcriptional repressor, an miRNA,and a ubiquitin ligase.Describe how transcription would be affected in the Galactose metabolizing pathway in Yeast in the presence of the following mutations. 1. A mutation that resulted in an inability of Gal80 to enter the nucleus. 2. A mutation that resulted in a lack of ability of Gal3 to bind galactose.The sigma factor protein's role in transcription in E. coli includes which of the following? None of the answer options are correct. plays a role in transcription termination forms part of the core enzyme required for transcription initiation helps the siRNA to bind to the promoter All of the answer options are correct. contributes to the proof-reading activity of RNA polymerase And The role of tRNA is to serve as an intermediate in the decoding of genes. serve as general translational components of the ribosome. facilitate protein trafficking in protein secretion. facilitate splicing of pre-messenger RNAs. act as vehicles bringing amino acids to the site of protein synthesis. None of the answer choices are correct.
- Which of the following mechanisms is an example of post-transcriptional gene regulation? A. binding of a repressor protein to an operon B. alternative splicing of exons in an RNA transcript C. acetylation of histones in chromatin D. methylation of specific regions of DNAA strain of bacteria possesses a temperature-sensitive mutation in the gene that encodes the rho subunit. At high temperatures, rho is not functional. When these bacteria are raised at elevated temperatures, which of the following effects would you expect to see? Explain your reasoning for accepting or rejecting each of these five options. Q. Transcription does not take place.. Eukaryotic processing of hnRNA into mature mRNA includes all of the following steps except: ribosome attachment of methionine to the 5’-AUG-3’ codon 5’-addition of a 7-methylguanosine cap 3’-addition of a polyadenylated tail splicing together of exons excision of introns