. Which of the following is not a function of RNA polymerase Il? A. Synthesis of MRNA B. Synthesis of FRNA C. Synthesis of miRNA D. Synthesis of snRNA
Q: The splicing process a. occurs in prokaryotes. b. joins introns together. c. can produce…
A: Ribonucleic acid (RNA) is a nucleic acid found in both the nucleus and cytoplasm. It can be genetic…
Q: In catalyzing the methylation or pseudouridylation of an rRNA, asnoRNA functions asa. a decoy.b. a…
A: SnoRNA (small nucleolar RNA) is abundantly present in nucleolus and carries the modification of…
Q: When bacteria are grown in the presence of high concentrations of tryptophan: O A. A repressor is…
A: Tryptophan is defined as an alpha-amino acid utilized in the biosynthesis of proteins and cannot be…
Q: What types of changes take place in rRNA processing? a. Methylation of bases b. Cleavage of a larger…
A: Ribonucleic acid (RNA) is a polymeric molecule essential in various biological roles in decoding,…
Q: What is the mechanism by which an RNA transcript can be used to silence expression of the same gene?…
A: Recombinant DNA technology (rDNA technology) is very helpful for analyzing the entire genome of a…
Q: What will result from the binding of a transcription factor to an enhancer region? a. decreased…
A: Introduction: To initiate transcription in the eukaryotic cell, RNA polymerase should bind to the…
Q: (c) more than one protein to be produced by a gene
A: Gene can be defined as the basic physical and functional unit of heredity.
Q: In gene silencing, the “dicer” enzymea. assembles siRNAs into a RISC complex.b. unwinds the RISC…
A: Introduction: Gene silencing is a mechanism to regulate the expression of genes. The gene silencing…
Q: Alternate splicing: A. Reduces mRNA half-life by shortening poly(A) tails B. Disrupts histone…
A: Introduction In Molecular Biology, RNA Splicing Is The Process By Which A Newly Synthesised…
Q: Gene expression in bacteria is controlled by the operon model. a) Why is the operon model…
A: BASIC INFORMATION OPERON MODEL This model of gene regulation was put forward by Francis Jacob and…
Q: what is the translation factors(s) most involved in decoding a) IF1,IF2,IF3 b) N-fMet-tRNAfMet…
A: Protein synthesis or translation complete in three step - initiation, elongation and termination. It…
Q: The portion of the mRNA that is removed during splicing is (a) an inverted repeat (b) the promoter…
A: The protein synthesis is a process which involves two steps transcription and translation .…
Q: A TATA box (core promoter) is ____________. Group of answer choices a) None of the above b)…
A: ANSWER;- a) None of the above Explain;- A TATA box is a sequence of DNA found in the core promoter…
Q: Which statement is TRUE of the CRM (cis-regulatory module)? a) it codes for transcription factors…
A: The cis regulatory elements control gene expression at various developmental stages.
Q: What is the name of the site where RNA polymerase binds to the DNA prior to the beginning of…
A:
Q: Initiation factors (IFs and eIFs) participate in the cellular process of ________________ . Question…
A: Spicing is removal of introns from a primary transcript. mRNA processing involves splicing , capping…
Q: Predict the sequence of amino acid coded by the mrna sequence 5’ GGA-GGC-ACA-UGG- GAA 3’
A: mRNA is read in 5' to 3' direction. Codons are triplet i.e. a combination of three bases codes for…
Q: Which of the following statements about the DNA in one of your brain cells is true? (A) Most of the…
A: Answer is C.) It is the same as the DNA in one of your liver cells.
Q: Examining the DNA of a cancerous cell, a scientist would find strong expression of A. siRNAs. B.…
A: Option c i.e. oncogenes is the correct statement for the above question.
Q: . Which of the following is an example of post-transcriptional gene repression?a. The amount of RNA…
A: Post-transcriptional gene repression means the expression of the gene in the form of protein is…
Q: The functioning of enhancers is an example of(A) a eukaryotic equivalent of prokaryotic promoter…
A: Enhancer refers to a short region of DNA. It increases the process of transcription of a particular…
Q: RNA processinga. removes the exons, leaving only the introns.b. is the same as transcription.c. is…
A: Transcription is the first step of gene expression that involves the formation of RNA molecule from…
Q: If you want to decrease gene expression, you would need the activity of which RNA? O mRNA miRNA O…
A: RNA interference It is a mechanism that inhibits gene expression at the stage of translation or by…
Q: The IRNA that was in the P site moves into the A site C. The tRNA that was in the A site moves to…
A: The process of protein synthesis is called translation. In this process transfer RNA, messenger RNA…
Q: A cell has a mutated mediator protein. a) How will this affect transcription of genes? (circle an…
A: Transcription factors and RNA polymerase II interact with mediator complexes. The key job of…
Q: Regulatory transcription factors can be modulated by a. the binding of small effector molecules. b.…
A: Transcription factors that bind to regulatory elements are called as regulatory transcription…
Q: Which of the following functions is NOT typically attributed to small nuclear RNA (SNRNA)? A)…
A: Ribonucleic acid is a complex of the high molecular weight molecule that participates in cellular…
Q: A binding site for RNA polymerase is called a .a. gene c. codonb. promoter d. protein
A: Transcription is a process in which one strand of DNA known as template strand is known as converted…
Q: Transcription is initiated when: a. initiation factors assemble ribosomal subunits, mRNA, and…
A: Transcription: It is Initial copying of the DNA strand with RNA Polymerase to make RNA. Before the…
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: Determine the site of the occurrence of mutation in the promote that prevents the binding of RNA…
A: The key component of the operon's promoter region is an RNA polymerase binding site that serves as…
Q: The portion of a gene that will be expressed in a protein is called a(an) a. Exon b. Intron c.…
A: A gene is a segment or region of DNA (deoxyribonucleic acid) that encodes for proteins or regulatory…
Q: Proteins that influence RNA synthesis by binding directly to DNA are called_____ . a. promoters c.…
A: The conversion of the DNA into the mRNA is termed as the transcription and the conversion if this…
Q: The heptapeptide repeat in the carboxy terminal domain (CTD) in the RPB1 subunit of RNA polymerase…
A: Answer :- Option (D) is correct. - Initiate transcription.
Q: Researchers are designing and testing antisense drugs as therapies for a variety of diseases,…
A: The antisense gene therapy is a form of treatment for genetic disorders. This therapy is also…
Q: TRNAS contain the that interacts with MRNA. docking bay b. anticodon а. C. codon
A: A transfer RNA is an adaptor molecule made of RNA that is typically 76 to 90 nucleotides long (in…
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: Promoters are DNA sequences a. near a transcription start site b. bound to a repressor protein c.…
A: it is related to molecular biology.
Q: Match the activity with the enzyme/proteins. v Scans the DNA to search for the promoter region A.…
A: DNA acts as the genetic material in most organisms. DNA gets transcribed into mRNA with the help of…
Q: If a splice site were mutated so that splicing did not take place, what would be the effect on the…
A: Mutation in genetic sequence of RNA is due to deletion, insertion, or any change in the nucleotides,…
Q: A regulatory region shows all of the following properties except
A: Ans - a) can be located in an exon. Regulatory regions cannot be present at the exon portion of a…
Q: A. Taq polymerase B. Release factors C. Reverse transcriptase D. CDNA 1. Catalyzes peptide bond…
A: 1. H peptidyl transferase 2. G aminoacyl tRNA synthetase 3. K shine dalgarno sequence 4. I…
Q: tRNAs a. carry amino acids b. bind to the anticodon present in the mRNA c. adapt the genetic…
A: Introduction Transfer RNA (tRNA) is a short RNA molecule that aids in the production of proteins. A…
Q: Which of the following statements about gene expression is false?a) More than one RNA polymerase can…
A: DNA is a polynucleotide molecule, is a genetic material for most of the species on earth. The DNA…
Q: A regulatory transcription factor protein typically contains _________ that binds to the ________ of…
A: Transcription is the first step in central dogma of protein synthesis. It involves formation of…
Q: The DNA sequence of a gene is CCATGCT A. The corresponding mRNA produced from 6. this gene is a.…
A: The protein synthesis consumes large amount of a cell’s energy as compared to the other organic…
Q: MicroRNAS attach to MRNA. In doing this, they... O Lead to the production of more protein O Lead to…
A: The control of gene expression through micro RNA is dones mainly by binding with the messenger RNA…
Q: The site on the ribosome complex which binds the new incoming amino acid- TRNA is called the A P…
A: Introduction Translation is the process by which ribosomes in the cytoplasm or endoplasmic reticulum…
Q: All about RNA editing A. changing one or more nucleotides in the RNA transcript by deamination B.…
A: In this question when we look at options then we don't need to check B and C options as it's in…
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- Binding of _______ to _______ in DNA can increase the rate of transcription of specific genes. a. activators; repressors c. repressors; operators b. activators; enhancers d. repressors; enhancersWhich statement is false: A) Each type of protein ( ex: hemoglobin vs trypsionngen) varies in the length and amino acid sequence of its peptide B) After the rpocess of transcription is complete, the mRNA that is produced will continue being tranlsated by ribosomes for the rest of the cells life. mRNA never breaks down C) A ribosome will bind to an mRNA and will translate the sequence by reading one codon at a time and adding one amino acid to the peptide chain. It will stop the translation once it encounters a stop codon D) The gene for a protein provides the information on the legth of the peptide, along w the amino acid sequence so the protein can be synthesized by a ribosome E) Once mRNA has left the nucleus, ribosomes will bind to it and will follow the instructions in its sequence to make the new protienA TATA box (core promoter) is ____________.Group of answer choices a) None of the above b) binding site for RNA polymerase II and essential to initiate transcription c) one of the stop codons d) the translation termination sequence.
- During RNA processing _______ are spliced out by snRNPs which recognize a _______. introns; TATA box introns; sequence at the boundary exons; sequence at the boundary exons; TATA boxFill in the blanks Enzymes that catalyze RNA-directed DNA synthesis are called ______. A(n)__________ is an enzyme that cleaves DNA at specfic sequences. The large multisubunit complex that links the general transcription factors to the gene-specific transcription factors is called __________.. Which of the following is an example of post-transcriptional gene repression?a. The amount of RNA transcribed from a gene isreduced because the DNA is methylated.b. The amount of RNA is reduced because it is rapidlydegraded.c. The amount of protein made is reduced by action ofan miRNA.d. b and c are both correct.
- Which of the following statements about gene expression is false?a) More than one RNA polymerase can be transcribing a specific gene at a given time.b) More than one ribosome can be translating a specific transcript at a given time.c) Translation begins at a site called a promoter.d) Transcription stops at a site called a terminator.e) Some amino acids are coded for by more than one codon.A regulatory region shows all of the following properties except a) can be located in an exon. b) can be located at a distance from the gene. c) acts as a binding site for transcription factors. d) acts as a binding site for a polymerase.Which of the following is an example of chromatin modification that stimulates gene expression? Group of answer choices A. alternative exon splicing b. microRNA binding to mRNA c. DNA methylation D. histone acetylation
- Are the following statements TRUE or FALSE?a. Post-transcriptional RNA processing occurs in the cytoplasm of the cell.b. A primary RNA transcript is often much longer than the mature mRNA that leaves the nucleus.c. Both ends of a pre-mRNA are modified to facilitate RNA splicing.Mutation of which of these sequences would have an effect on translational initiation? A. 3’ UTR B. Polyadenylation signal C. 5’ UTR D. upstream enhancer E. TATA boxWhat transcripts will be most affected by low levels of α- amanitin? a. 18S and 28S rRNAs b. pre-mRNAs c. 5S rRNAs and tRNAs d. other small nuclear RNAs
