Eukaryotes can control transcription by three overall type of process, they are ( selection from options 1); second ( selection from options 2, and third ( options 3)  options 1.  A. TRNA splicing,                  B. Promoter/ enhancer, tx factor                 C. Causing inversion and deletions                D. Denaturing proteins    options 2, A. Activating proteins allosteric sites, B.activating or inhabiting proofreading. C. Activating or inhibiting helicase. D. Destroying ribosomes. E. Methylation the DNA.    Options 3. A. Cutting thier own DNA with restrictions enzyme , B. Causing mRNA instability , C. Chromating remodeling/ loosening or tightening histone connections. D. Forming or destroying T-T dimers.

Q: The following DNA nucleotides are found near the end of a bacterial transcription unit.…

A: Transcription is one of the two main processes essential for gene expression. In this process, the…

Q: The hunchback gene contains a 5′ transcriptional regulatory region, a 5′ UTR, a structural region…

A: Genetics is a branch of science that deals in the study of genes, heredity, and genetic variation of…

Q: In a eukaryotic cell, four general types of RNA molecules are involved in gene expression.  a) What…

A: The gene expression is the production of protein from the a gene. That means it involves…

Q: A mechanism of control in E. coli not discussed in this chapter involves pausing of ribosomes…

A: Introduction  Gene Regulation: Expression of gene is highly regulated in both prokaryotes as well as…

Q: Through alternative splicing, eukaryotes (a) reinforce gene inactivation (b) prevent transcription…

A: The transcriptional process of genes has some differences in prokaryotic cells and eukaryotic cells.…

Q: Cancer cells were characterized for their high transcriptional and translational levels. Direct…

A: Transcription factor – a material, such as a protein, that contributes to the purpose of a specific…

Q: With regard to transcriptional termination in eukaryotes, which model(s) suggest(s) that RNA…

A: Forming of Rna from Dna is known as transcription and removal of RNA from the polymerase is known as…

Q: There is a promoter of a tumour suppressor gene in a mutant cancer cell line, and discover that…

A: DNA in our cells are highly condensed in order to accomodate them within the nucleus of our cell.…

Q: onsider Figure 3, which shows some features of a eukaryotic gene. A, B, C are exons while 1, 2 are…

A: INTRODUCTION When an RNA transcript is first made during a eukaryotic cell, it's considered a…

Q: 1.  Gene expression may be regulated after translation using the following mechanisms EXCEPT a. by…

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Q: You are teaching a class on the regulation of eukaryotic gene expression. In order to demonstrate…

A: Genes are the fundamental unit of heredity. They store genetic information in the form of DNA, which…

Q: Wild-type E. coli grow best at 37oC, but can grow efficiently at temperatures up to 42oC. An E. coli…

A: Mutations is the phenomenon in which small changes in the nucleotide sequences takes place which…

Q: Regarding the process of gene transcription in eukaryotes, it is correct to state that A)The…

A: Transcription is a process of copying a DNA segment into RNA.

Q: 1. The following regulatory mechanisms occur before eukaryotic transcription EXCEPT a. the…

A: Ans - b. the phosphorylation of eukaryotic initiation factors. Promoters: This is a DNA sequence…

Q: A more thoughtful analysis of NANOG expression should consider all post-transcriptional and…

A: Medical experts continue to find new medications that aid in the treatment of deadly diseases and…

Q: 5

A: The correct answer is A.

Q: You are teaching a class on the regulation of eukaryotic gene expression. such as the promoter…

A: Binding of RNA polymerase II  and transcription factors is necessary for transcription.

Q: When Laybourne and Kadonaga studied the effects of histone proteins on eukaryotic transcription…

A: a) To clarify the mechanism of transcriptional repression by the nucleosomal cores they considered…

Q: You made four mutants for a promoter sequence in DNA and studied them for transcription. The results…

A: Promoter are the sequence present in the DNA. These allow the binding of transcription factor and…

Q: 1. Transcription: a)State the role of RNA polymerase in gene transcription.b. Explain why the DNA…

A: Transcription is the process of copying information from a strand of DNA to a newly synthesized…

Q: 1. You have identified a novel protein that shows structural similarity with NELF. You next examined…

A: NELF is a negative elongation factor that is composed of four distinct protein subunits. These…

Q: Post-transcriptional modifications in eukaryotic RNAS A. addition of CCA at the 5'end of the RNA for…

A: Post transcriptional modification  It is a biological process in eukaryotic cell where primary…

Q: In a couple of sentences, explain how eukaryotic activator proteins (that are usually gene-specific…

A: Transcription factors are proteins that bind to neighbouring DNA and help switch particular genes…

Q: Define regulatory mutation. Describe how an insertion, deletion, or substituion of a base pair in a…

A: Mutations are any change in the sequence of DNA (genetic material present in nucleus) either due to…

Q: A scientist compares the promoter regions of two genes. Gene A’s core promoter plus proximal…

A: Promoters are nucleotide sequences location upstream of a gene. They serve as sites where proteins…

Q: In any experiment, controls are essential in order to determine the specific effect of changing some…

A: Controls are used in the experiment to analyze the obtained results and reach a conclusion on…

Q: What would happen if a lysine residue that was normally acetylated was mutated to an arginine?  A.…

A: Lysine acetylation occurs in the eukaryotic and prokaryotic organisms and it mutates thousands of…

Q: A researcher is trying to identify regulatory DNA sequences near a gene of interes- Several modified…

A: An enhancer is a a short region of DNA that when present either upstream or downstream of a gene can…

Q: What is the direction of the growth of newly synthesized RNA chain during transcription?   options:…

A: The first step of gene expression is transcription. A protein subunit or a polypeptide making…

Q: Provide the SIGNIFICANT differences between the following: 1. Regulation AFTER transcription mRNA…

A: The process of mRNA processing involves the removal of the intron sequences and the joining together…

Q: Discuss    how    mutations    may    arise    in    DNA,    and    the    potential    consequences…

A: Mutations are the changes in the nucleotide sequence of DNA and it arises at the time of DNA…

Q: The extent to which a given gene is transcribe depends on 1. the particular combination of…

A: Introduction: The biological process involving the copying of the information present in the strand…

Q: List some of the ways in which eukaryotic transcription is more complex than transcription in…

A: A process of transfer of information from deoxyribonucleic acid (DNA) into a new molecule of…

Q: Nucleosome-free regions: A) are always only associated with genes that are being actively…

A: Introduction :- The organization of genetic material in eukaryotic organism's nucleus is done with…

Q: Regarding eukaryotic genes, it is correct to state that:  a) Distal enhancer-like elements decrease…

A: Eukaryotic cell has a true nucleus surrounded by a nuclear membrane which separates the nucleus from…

Q: Transcription in prokaryotes produces mRNA that is ready to translate, while in eukaryotes the RNA…

A: Transcription is a proces of synthesis of RNA from DNA.During transcription;only one of the strand…

Q: Answer these questions concerning promoters. a) What role do promoters play in transcription? b)…

A: A region in DNA molecule that initiates transcription of a particular gene is referred to as a…

Q: You suspect that the mRNA encoding the guanine biosynthetic genes of Bacillus subtilus contains an…

A: Before we get into figuring out a way to test the above hypothesis, we need to have a good idea on…

Q: The -10 and -35 regions of prokaryotic promoters are called consensus sequences because ________. a.…

A: Promoter gene is located adjacent to the operator gene. It is the DNA segment at which RNA…

Q: In eukaryotic gene regulation, transcription is regulated by the following EXCEPT  a.  the binding…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Alternative RNA splicing a. is a mechanism for increasing the rate of transcription. b. can allow…

A: Alternative splicing – it produces different spliced mRNAs products through different combinations…

Q: Cro protein expression and activity may be activated in a prophage by a)lysogenic dominance b)rapid…

A: Role of Cro protein:                     The host SOS response triggers the prophage induction by…

Q: Which of the following parts of the eukaryotic promoter are bound by general transcription factors?…

A: As visible In image GTF general transcription factor bind to core protein , proximal elements

Q: A bacterial species has a hypothetical sigma promoter that has the following sequence: TTGGCA - 18…

A: Transcription is the process of creating new RNA by duplicating the DNA strand. Transcription is the…

Q: Choose the item in column 2 that best matches each item in column 1. A. Provides information for…

A: core RNA polymerase - multi subunit enzyme composed of 5 subunits : 2α , β , β' and omega.  RNA…

Q: Using the transcription unit diagrammed below, in which exons are represented by blue boxes and…

A: Transcription is the process of synthesising mRNA from the template strand of DNA.

Q: however, a transversion occurred which changed the G nucleotide to T, what outcome(s) are likely?…

A: Promoter  Is it a sequence of DNA in up stream or near the beginning of the gene. It regulates the…

Q: A high rate of transcription initiation from promoters in bacteria can be achieved by which of the…

A: Transcription can be described as a process by which the information in a strand of DNA is copied…

Q: Transcription is currently believed to occur in bursts, whereby increased burst frequency is…

A: Thank you for the question  Answer :- When DNA to RNA transcription occurs in the form of…

Q: why was s1 nuclease used? b) where do you think the mutation is occurring, and whats the…

A: Transcription is the stage when the DNA is converted into RNA. During transcription elongation, the…