Q: What is the difference between eukaryotes and prokaryotes in terms of primary transcripts?
A: Primary transcript is the immediate product of transcription. In the process of transcription of…
Q: What sequence elements are found within the core promoter of protein-encoding genes in eukaryotes?…
A: Gene expression is a process by which the genes are turned on to form RNA and proteins.…
Q: What are strong promoters?
A: The strength of a promoter is the rate of transcription of the gene controlled by this promoter.
Q: What do transposable genes mean? How many different transposable genes do bacteria contain?
A: Transposable genes Transposable genes also known as jumping genes are defined as the repetitive…
Q: How can the bacteriophage T7 promoter be used to controlexpression of a eukaryotic gene in…
A: Expression vectors are designed to control the expression of particular cloned genes. The native…
Q: How Linker scanning mutations identify transcription control elements. ?
A: The regulation of gene expression is dependent on many factors. The promoter is the upstream…
Q: What do promoters do in Bacteria? How is atranscript in Bacteria terminated?
A: A structure of mRNA is generated when an unpaired mRNA strand folds and base pairs with another part…
Q: What are RNA polymeraseII in transcription in eukaryotes?
A: RNA polymerase {or the DNA dependent RNA polymerase} was discovered by Weiss and Hurwitz in the year…
Q: Which protein subunit specifically binds to the promoter region in prokaryotic cells? α β ω β'…
A: Particular DNA segments found in the promoter are recognized by transcription factor proteins. These…
Q: What are two subcategories within eukaryotic promoters ?
A: Promoters are regions on the DNA where different proteins bind to initiate transcription, the…
Q: What require for Eukaryotic Transcription Initiation ?
A: The transcription of DNA occurs in 3 major steps, initiation, elongation and termination. The…
Q: Why is it said that transcriptional regulation in eukaryotes is characterized by combinatorial…
A: The cells are the primary unit of life. Based on the number of cells an organism may be prokaryotic…
Q: What is the fundamental difference in how bacterial andeukaryotic genes are regulated?
A: The process of turning the genes off and on is known as gene regulation. It ensures the proper…
Q: How do nucleosomes add to the complexity of eukaryotic transcription?
A: Nucleosomes' primary role is the packaging of DNA into the cell nucleus. The nucleosome is made up…
Q: What are the steps involved in the processing of eukaryotic pre-MRNA? why is this process important?
A: Eukaryotic pre-mRNA undergoes extensive processing where is pre - tRNA, pre rRNA in both prokaryotes…
Q: essential components for transcription control in prokaryotes
A: The Operon concept Regulation of transcription is complete by controlling the rate of initiation.…
Q: What is the key enzyme for transcription in prokaryotes?
A: Transcription involves the copying of the genetic information from DNA (Deoxyribonucleic acid) to…
Q: How do we know that alternative splicing enables one gene to encode different isoforms with…
A: In eukaryotes, transcription takes place in the nucleus, and translation (the process of synthesis…
Q: Eukaryotes have a multitude of ways of regulating gene expression. Why are all these regulatory…
A: gene regulation is the process used to control the timing, location and amount in which genes are…
Q: How do we know that bacterial gene clusters are often coordinately regulated by a regulatory region…
A: Prokaryotic transcriptional regulation is accomplished by gene regulatory proteins which bind with…
Q: What are the two ways in which piRNAs and PIWI proteins prevent the movement of transposable…
A: PIWI-interacting RNAs (piRNAs) are non-coding RNAs that are involved in the defense mechanism. They…
Q: What are transcription in eukaryotes?
A: Deoxyribonucleic acid (DNA) is the hereditary unit of life, which carries the genetic information in…
Q: What are snRNPs? What is their role in the processing of eukaryotic mRNAs?
A: DNA is the genetic information carrier in almost all organisms except for a few RNA viruses. DNA is…
Q: What is the difference between a promoter and an enhancer?
A: Promoter and enhancer are the regulatory elements of the genes. They don't produce any RNA or…
Q: What role does RNA stability play in gene regulation? What controls RNA stability in eukaryotic…
A: Gene regulation is defined as the mechanism by which the cells increase or decrease the production…
Q: Why eukaryotic genes are called split genes? What is alternative RNA splicing?
A: Gene is the biological and functional unit of cells. They consists of DNA that is present on the…
Q: How Are Genes Transcribed in Eukaryotes?
A: Introduction: Transcription is the process of producing an RNA copy of a gene sequence.This…
Q: What is the relationship among core promoter elements, basal transcription factors, and RNA…
A: The Ribonucleic Acid (RNA) polymerase II center promoter is commonly characterized to be the…
Q: What are the two important sequence elements in the prokaryotic gene promoter? How does the RNA…
A: PROMOTER: Promoter sequences are DNA sequences that define the start of RNA polymerase…
Q: What are RNA polymeraseI in transcription in eukaryotes?
A: DNA is the nucleic acid present in the nucleus of the eukaryotes.
Q: What role is played by Silencers in transcription of eukaryotic genes ?
A: Transcription is a process in living cells where the genetic information in the form of DNA is being…
Q: How do eukaryotes coordinate gene expression?
A: The living organisms on this planet have been broadly categorized into Prokaryotes and Eukaryotes.…
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 major mechanisms that allow eukaryotic genes to have transcription states that range…
A: Transcription is the process of formation of a sequence of messenger RNA using DNA as a template and…
Q: How dispersed promoters specify multiple transcriptional start sites ?
A: Answer:Introduction: In vertebrates, approximately 70% of genes contain dispersed promoters, that…
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 difference between eukaryotes and prokaryotes in terms of promoters?
A: A portion of DNA which participates in transcription is called transcription unit. It has three…
Q: What are the essential components for the transcription control in prokaryotes? Please explain…
A: The expression of bacterial genes in prokaryotes are controlled mainly at the level of…
Q: Do eukaryotes have transposable elements?
A: Transposable elements or TEs are also referred to as jumping genes. They are the DNA sequence 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: 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 an enhancer? What do these sequences contain bound to it? Do enhancers have to be near…
A: In the human genome, there are around 110,000 gene enhancer sequences. They are regulated by…
Q: What are the types of transposable elements in eukaryotic cells?
A: Introduction: Transposons are a region or DNA segment that possess the ability to replicate on its…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Prokaryotic cells can have more than one functional start codon per mRNA because There are multiple answers A prokaryotic promotes consist of two separated sequences: the -30 box and the -10 box B they make polycistronic RNA C both transcription and translation happen in the same cellular compartment D prokaryotic ribosomes bind to the Shine-Delgarno sequence E the activity of the lac repressor is regulated based on the physiologic condition of the cellThe diagram below shows an imaginary eukaryotic structural gene containing two exons. The exon nucleotides are numbered beginning at the transcription start site and a portion of the intron is not shown to save space: Help Center? transcription start site promoter U STACAGTATAAATGAATTAATTGACGTATGTCAATCGGTAAGT...TCAGGTACT U UUU} Phe UUG} Leu exon 1 3 ATGTCATATTTACTTAATTAACTGCATACAGTTAGCCATTCA...AGTCCATGAATGACTTATGTGCGGTTATTTACTGAT... Second letter C Predict the amino acid sequence of the polypeptide encoded by this structural gene. The genetic code is provided below.How does the antibiotic streptomycin inhibit bacterial translation? Multiple Choice blocks elongation by preventing the large ribosomal subunit from binding to the small ribosomal subunit interferes with the normal pairing of aminoacyl TRNAS and codons resulting in abnormal proteins prevents the release of the initiator tRNA from the P site, blocking elongation blocks termination by competitively inhibiting the binding of a release factor to the A site
- A bacterial species has a hypothetical sigma promoter that has the following sequence: TTGGCA - 18 bases - TATAAT What change in the level of transcription would there be if the sequence was mutated to: TTCGCA -18 bases -TATAAT O The mutation would bind the promoter to the consensus and produce normal levels of transcription O The mutation would inhibit the promoter thereby inhibiting transcription The mutation would move the promoter away from consensus and reduce the level of transcription O No change the consensus TATAAT sequence in the same. D00 F3 F4 F5 F6 F7 F8 F9 % & 5 6 7 8 9 %24In eukaryotes, the initial transcript, pre-mRNA, must be modified in three ways before it leaves the nucleus. The pre-MRNA is spliced, given a polyA tail and a cap. Examine the pre- MRNA shown below, then choose the one mature MRNA it would become aftër post-transcriptional modification. Pre-MRNA 5' EXON R INTRON A EXON S INTRON B EXON T 31 polyA tail S сар 3' • 5' сар T polyA tail 3" сар polyA tail 3' polyA tail RAS в т сар 3" RAS BT polyA tail 3' сарWhich mRNA sequences would form a structure that is a cue for transcription termination of some genes? 5'-GGCCCUUUUACCCGGUUUU-3' 5'-GCAUCUUACUGAUGCUUUU-3' a stem-loop hairpin structure followed by a sequence of uracil residues in the RNA a palindromic region followed by a sequence of adenine residues in the RNA a sequence of uracil-adenine RNA-DNA base pairs
- The following diagram represents DNA that is part of the RNA-coding sequence of a transcription unit. The bottom strand is the template strand. Give the sequence found on the RNA molecule transcribed from this DNA and identify the 5′ and 3′ ends of the RNA. 5′–ATAGGCGATGCCA–3′ 3′–TATCCGCTACGGT–5′ ← Template strand"Upstream" "Downstream" Exons Start of transcription Termination codon 5 3' Promoter initiator codon Introns Polyadenylation signal (intervening sequences) 5' untranslated region 3' untranslated region Direction of transcription Please study the diagram above on eukaryotic gene expression. In order to provide instructions for gene expression, a eukaryotic gene should have the following sequences except for O A. Promoter B. Start codon also known as initiator codon C. Splicing signals (dinucleotide sequence in the intron) O D. 5' CAP sequenceA eukaryotic gene typically has all of the following features except O A5' UTR An operator A promoter Transcription factor binding sites Introns
- Indicate which of the following items are associated with transcription or translation. This could be in prokaryotes or eukaryotes, or both. Group of answer choices: Translation OR Transcription Sigma binds to the promoter mRNA binds to the small ribosomal subunit Spliceosomes remove introns and splice together exons Nucleotides are added from the 5' to 3' end tRNA anticodon binds to the corresponding mRNA codon STOP codon results in terminationConsider this list (below) of steps involved in transcription. These steps are out of order. TRANSCRIPTION: 1. mRNA travels through a nuclear pore and enters the cytoplasm 2. the mRNA polymerase attaches at the start of a specific gene 3. RNA polymerase reads the gene surface4. a transcription factor bonds to a promoter site5. DNA molecule is unwound 6. a complimentary mRNA is produced What is the correct order of this transcription?Which of the following mechanisms do prokaryotes use to produce different protein products from a single RNA transcript? O Transcribing three separate genes on a single mRNA Cleaving a polypeptide into three parts creating three distinct products O Utilizing site-specific recombination to generate three different versions of the gene O Utilizing alternative splicing leading to three distinct MRNAS