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: Compare the structures and functions of transcriptionalactivators and repressors.
A: The transcription factors are the molecules or the chemical agents, which can bind to the promoter…
Q: The TATA box is located at which region of the promoter? O Position 0 O Position -35 O Position -10…
A: A TATA box is a DNA sequence that tells how to read and decode a genetic sequence. It's a form of…
Q: Describe the roles of RNA molecules in gene expression.
A: We know that An RNA is a single-stranded helical structure that is present in all biological cells.…
Q: Describe the three stages of transcription: initiation,elongation, and termination.
A: A process through which the information from the DNA strand is copied into messenger RNA (mRNA) is…
Q: Describe the steps of transcription in bacteria
A: Introduction - In the nucleus, transcription occurs. To make an RNA (mRNA) molecule, it uses DNA as…
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: 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: Describe how prokaryotic gene expression occurs at the transcriptional level
A: Biology is the scientific approach to study life. All the living forms share certain key features…
Q: Diagram the regulatory regions of a typical eukaryotic promoter and how they interact to regulate…
A: Gene expression is the process through which information from a gene is used to create a functioning…
Q: egulatory proteins in Prokaryotes shut off transcription by binding to a site immediately in front…
A: In the given question options are given in accordance to regulation of transcription in prokaryotic…
Q: Describe the significance of the promoter region in terms of gene expression. What is a common…
A: It is a sequence typically referred as that's right upstream or right next to where a gene is about…
Q: Outline the three stages of transcription and the role of RNApolymerase in this process.
A: Transcription is a process of transcribing the template DNA into complementary mRNA sequence which…
Q: Describe the steps of transcription in eukaryotes
A: Eukaryotic transcription is carried out in the nucleus of the cell by one of three RNA polymerases,…
Q: What is the function of the promoter
A: Promoter is the site on DNA where proteins such as RNA polymerase and some transcrption factors…
Q: Describe the structural features of transcription activator and repressor proteins.
A: The process of transcription is considered a crucial process for the formation of proteins in a…
Q: In transcription which subunit in bacteria is largely responsible for recognizing the promoter?
A: The process of copying the genetic sequence in DNA into mRNA. Bacterial transcription is the process…
Q: A bacterial species has a hypothetical sigma promoter that has the following sequence: TTGGCA -…
A: Promoters are essential components of expression vectors because they regulate RNA polymerase…
Q: Describe the roles of RNA molecules in gene expression
A: RNA is an important biological macromolecule that is present in all biological cells. It is…
Q: Discuss the structure and function of regulatory elements. Where are they located relative to the…
A: A eukaryotic organism is made up of several genes. It is essential to ensure that not all genes are…
Q: Briefly list some of the ways in which siRNAs and miRNAs regulate genes.
A: miRNA or micro RNA and siRNA or small interfering RNA or silencing RNA are a type of RNA molecules…
Q: Explain what are dispersed core promoters
A: Transcription is the process by which the information contained in DNA is transcribed to a…
Q: What would you expect to happen if you mutate a transcription factor binding site in a promoter?
A: A mutation is a sudden change in the structure of DNA. If we mutate a transcription factor then it…
Q: Define promoter region and list three of its properties.
A: Introduction The region with the specific DNA sequence, right upstream to the transcription starting…
Q: What are core promoters in relation with DNA ?
A: Deoxyribonucleic acid(DNA) is a molecule comprised of two polynucleotide chains coiled around each…
Q: Describe how mRNA is created in transcription step by step.
A: Gene expression is a cycle by which the qualities are gone on to frame RNA and proteins. This is…
Q: post-transcriptional modifications that occur in mRNA and tRNA.
A:
Q: Explain aspects of the regulation of gene expression in eukaryotes?
A: Gene regulation is defined as the mechanism by which the cells increase or decrease the production…
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: Discuss the three steps of Transcription (Initiation, Elongation, Termination).
A: The process of transcribing a piece of DNA(deoxyribose nucleic acid) into RNA(Ribose nucleic acid)…
Q: Write out the sequences of the two conserved elements in the following bacterial promoter. The…
A: In the transcription unit, the transcription start site is marked as +1.
Q: Outline the three stages of transcription.
A: The flow of genetic information normally occurs through three general transfer processes, i.e.…
Q: Regarding transcriptional promoter sites, which of the following statements are true? Select one or…
A: Introduction The process of converting a piece of DNA into RNA is known as transcription. Messenger…
Q: Explain what are dispersed core promoters ?
A: Transcription is the process of transferring information from DNA to a single-stranded molecule…
Q: Explain how general transcription factors and RNA polymerase assemble at the promoter and form an…
A: Introduction Transcription is the process of formation of RNA transcript form the segment of DNA…
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: Describe the role of micro RNA (miRNA) in gene expression ?
A: Gene expression is a process in which functional product or protein is formed by the given…
Q: Describe the characteristics of a bacterial promoter.
A: An operon is a functional unit of DNA (Deoxyribonucleic acid) containing a cluster of genes under…
Q: Compare the actions of positive and negativeregulatory proteins at promoters
A: Lac operon is an operon that involves in the transport and metabolism of lactose in humans and many…
Q: How dispersed promoters specify multiple transcriptional start sites ?
A: Answer:Introduction: In vertebrates, approximately 70% of genes contain dispersed promoters, that…
Q: What enzyme catalyzes transcription? What is a promoter and what protein recognizes promoters in…
A: Transcription is the process by which the information encoded in a DNA strand is decoded and copied…
Q: Match the activity with the part of the gene. 1. Eukaryotic promoter sequence 2.Prokaryotic promoter…
A: Transcription is the process of synthesis of mRNA from DNA. Promoters are landmarks for the…
Q: What occurs when the appropriate signals turn on the promoter?
A: A promoter is a DNA sequence towards which proteins attach to start the process of transcription of…
Q: Which feature of promoters can be found in both prokaryotes and eukaryotes? a. GC box b. TATA box c.…
A: Transcription is a process by which the information a strand of DNA is copied into a new molecule of…
Step by step
Solved in 2 steps
- Describe the significance of the promoter region in terms of gene expression. What is a common sequence found in eukaryotic promoter region.Provide a detailed description of gene expression and control in prokaryotes. Provide a detailed description of proteins critical for this process. (please hand draw a figure showing gene expression and control in prokaryotes and the proteins involved)Describe the promoter structure in prokaryotes and eukaryotes.
- Define both transcription and translation. In addition, describe the role(s) of each of the following in the processes of gene expression and protein synthesis: DNA, mRNA, tRNA, rRNA, ribosome(s), RNA polymerase, codon, anticodon, amino acid(s) and polypeptide(s). Be detailed in your answer.Briefly describe the significance of regulatory factors in transcription process. Why the promoter is called an essential regulatory element.Describe the similarities and differences between prokaryotic and eukaryotic promoter sequences.
- What are the role of transcription proteins? Explain briefly at your own wordsDescribe the characteristics of a eukaryotic promoter for a protein-encoding gene.Put the following processes in order of their occurrence during expression of a eukaryotic gene: a. mRNA processing c. transcription b. translation d. RNA leaves nucleus
- Give examples of structural motifs found in transcription factors that interact with other proteins instead of DNA.Explain why knowing the orientation of a promoter is critical when determining the amino acid sequence of an encoded protein.Explain how general transcription factors and RNA polymerase assemble at the promoter and form an open complex.