What would you expect to happen if you delete an important portion of a promoter?

Q: Sigma (σ) factor is needed during which stage(s) of transcription? a. Initiation c. Termination b.…

A: Transcription is the first step in central dogma of protein synthesis. It involves formation of…

Q: Define operon and polycistronic mRNA.

A: The working segment of a DNA molecule that mainly codes for the protein is a gene. Gene itself…

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 function of a reporter gene.

A: Gene is the primary fundamental unit. These are made up of Deoxyribonucleic acid (DNA). These are a…

Q: What is the difference between an operator and a promoter?

A: Replication is the process by which DNA makes identical copies. Transcription is the formation of…

Q: Which of the following combinations will cause transcription to be activated? a. A repressor plus an…

A: The transcription is a process through which information in the DNA molecule is transcribed into…

Q: Explain the function of promoter?

A: The promoter is a sequence of a gene which helps in regulating the expression of a gene.

Q: Which of the following is a sequence of DNA where transcription is initiated?   a. Kozak sequence.…

A: Transcription is a heterocatalytic action of an DNA by means of which RNA is synthesized from…

Q: For the following gene, which type of regulatory sequence has likely been deleted in mutant 1?…

A: Transcription is the mechanism by which an RNA copy of a gene sequence is produced. This clone,…

Q: Explain the promoter as a region of DNA ?

A: The DNA is the genetic information carrier having all the regions that carry different processes…

Q: To inactivate a gene by RNAi, what information do youneed? Do you need the map position of the…

A: RNA interference is a simple method uses for silencing a gene expression. During this process, the…

Q: What is the name of the site where RNA polymerase binds to the DNA prior to the beginning of…

A:

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: how can you find genes that are cotranscribed on a single mRNA?

A: Operon model: it had been given by jacob and Monod. this can be only applicable in prokaryotes as in…

Q: Difference between the promoter and terminator?

A: Transcription unit is the sequence of nucleotides in the DNA molecule that encodes for the RNA…

Q: In transcription, the location where RNA polymerase initially attaches to a gene is called the (a)…

A: Transcription is that the first step of organic phenomenon. Throughout this method, the…

Q: Which one is not a part of the transcription unit? a) RNA primase b) Promoter c) RNA coding sequence…

A: Deoxyribonucleic acid (DNA) is a double stranded helical genetic material containing thousands of…

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: Discuss the eukaryotic transcription process and mention the enzymes and components needed in the…

A: Cell is the basic structural and functional unit of life. All cells contains nucleus within which…

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: An insertion sequence contains a large deletion in its transposase gene. Under what circumstances…

A: The insertion sequence is the simple transposon of bacteria. Transposons are the DNA segments that…

Q: Which type of molecule binds at the core promoter sites in association with RNA polymerase? A…

A: RNA polymerase can attach to the polymer by only one method. This method involves binding of Basal.…

Q: Use the (non-template) DNA strand below to determine which is the promoter/sigma binding region:…

A: Introduction: A promoter is a DNA sequence to which proteins bind to start transcription of a single…

Q: The consensus sequence for the –35 sequence of a bacterial promoter is 5′–TTGACA–3′. The –35…

A: Gene expression is a process by which the genes are turned on to form RNA and proteins. DNA…

Q: What is not a part of an operon?

A: Operon comprises all the genes that are involved in metabolic regulation. It is the unit of the gene…

Q: Which of the following is NOT a regulatory DNA sequence? Origin Promoter Repressor

A: A regulatory sequence is defined as a DNA sequence capable enough to affect the expression of…

Q: What are the specific steps of eukaryotic transcription? Be sure in your discussion that you include…

A: Transcription is the process which consist of several steps of DNA based gene expression.Here  a…

Q: The promoter for the above transcription unit is located on the A Left B. Right C Arrow 1 position…

A: A promoter is a region of DNA where RNA polymerase ties to start transcription. A terminator is a…

Q: When a gene is being transcribed, the nitrogenous base code must be made available for reading by…

A:

Q: A cDNA clone contains (a) introns (b) exons (c) anticodons (d) a and b (e) b and c

A: A gene is the essential physical and functional unit of heredity. They are comprised of DNA…

Q: You are studying a bacterial plasmid that contains 3 operons and 9 genes. How many transcriptional…

A: In bacteria, similar and related genes are often found in a cluster on the chromosome, where they…

Q: In RNA silencing, siRNAs and miRNAs usually bind to which part of the mRNA molecules that they…

A: Small interfering RNAs or siRNAs and micro RNAs or miRNAs are those RNA segments that don't code for…

Q: Describe the similarities and differences between prokaryotic and eukaryotic promoter sequences.

A: The transcription is the production of RNA from the DNA template that is the first step of gene…

Q: When sequencing the genome of an organism and looking for potential genes, a sequence of DNA that…

A: An open reading frame (ORF) is the reading frame that contains the sequence of DNA in the form of…

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: How do we know that core-promoter elements are importantfor transcription?

A: A gene is the essential physical and functional unit of heredity. They are comprised of DNA…

Q: The specific sequence component of the bacterial promoter located 10 base pairs upstream of the a…

A: A promoter is a region of DNA where transcription of a gene is initiated. A promoter is a regulatory…

Q: What is meant by the term ‘redundancy’ in the context of the genetic code?

A: Genetic codon are the triplet of nitrogenous base pairs. These codon help code amino acids. We know…

Q: Based on your understanding of transcription, place the following events in the correct order.

A: The act of transcribing information from a strand of DNA into a new messenger RNA molecule is known…

Q: How do we know that eukaryotic transcription factors bind to DNA sequences at or near promoter…

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

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: What are Focused core promoters ?

A: Promoters are DNA regions where gene transcription begins. Focused core promoters are one of the two…

Q: What is the advantage of using a cDNA library?

A: Complementary DNA (cDNA) is synthesized from mRNA using an enzyme known as reverse transcriptase.…

Q: How does a promoter dictate which DNA strand is used as the template?

A: The promoter region is referred to as the site where the process of transcription begins on the DNA…

Q: What is a portion of the promoter which is usually modified via addition or removal of methyl groups…

A: Once the DNA has been replicated within the eukaryotic cells, a small proportion of the bases…

Q: At the DNA level, a mutation in a promoter region where six nucleotides are added. a) substitution…

A: Genetic material is nothing but the sequence of nucleic acids which is called as DNA. It contains…

Q: What are differences between promoters and enhancers ?

A: Protein synthesis is the process by which genetic instructions stored in DNA (in regions known as…

Q: What are the advantages of having multiple types of promoters and enhancers?

A: Promoter sequences are DNA sequences that define where transcription of a gene by RNA polymerase…

Q: What is the purpose of a Northern blotting experiment? What typesof information can it tell you…

A: Northern blotting is an experiment in molecular biology techniques which helps in analysing RNA…