Which one of the following amino acids is phosphorylated during the process of promoter clearance by eukaryotic RNA polymerase II? threonine Otyrosine serine proline

Q: What is the role of 5' end of RNA transcript in eukaryotes during initiation of translation?…

A: Throughout transcription, the 5' cap is inserted to the transcript's first nucleotide. The cap is an…

Q: Consider the Rho-dependent terminator sequence 5’CCCAGCCCGCCUAAUGAGCGGCCUUUUUUUU-3’. What affect…

A: The mutation is the change in the nucleotide sequence of the DNA. The point mutation is the mutation…

Q: Which statement describes a difference between transcription in eukaryotic and prokaryotic cells?

A: The process of DNA based gene expression in which a particular sequence of DNA molecules are copied…

Q: Ribosomal RNA in eukaryotic cells is synthesized by which of the following enzymes (exhibiting no…

A: Transcription is the process of the formation of RNA from the DNA. ( DNA to RNA). It involves the…

Q: Which of the following polymerase Il play a key role in? Please make sure to select ALL correct…

A: RNA polymerase II is an enzyme found in eukaryotic cells . Precursors of mRNA are formed by…

Q: How does C-terminal domain of RNA polymerase II function to ensure that the varoius sets of mRNA…

A: RNA polymerase II is a multiprotein complex that transcribes DNA into precursors of mRNA and…

Q: What kind of protein required for the initiation of transcription by RNApolymerase ?

A: Introduction  Transcription: it is the formation of transcript or RNA, which can be coding or…

Q: How does the intrinsically disordered C-terminal domain of RNA polymerase II contribute to the…

A: C terminal  domain of RNA polymerase II consists of a block of seven amino acids with the consensus…

Q: Which RNA processing event is facilitated by Serine 5 phosphorylation of RNA Polymerase II?…

A: RNA processing is a crucial series of events that occur after transcription, the process by which…

Q: In response to potentially toxic substances (e.g., high levels of iron), eukaryotic cells often use…

A: Post-transcriptional modifications of pre-mRNA molecules like capping, splicing, and…

Q: 3′-->5′ Exonuclease activity allows DNA polymerase III (Pol III) to back-up and fix a mismatched…

A: Since there are multiple questions in this particular question, I'll answer the first one for you.…

Q: The locations of the TATA box in two species of yeast, Saccharomyces pombe and Saccharomyces…

A: TATA box is a DNA sequence of 5'-TATAAA-3' that indicates where a genetic sequence can be read and…

Q: Describe how mature messenger ribonucleic acids (MRNAS) are post-transcriptionally processed in the…

A: Post transcription modification occurs in eukaryotes. Transcription makes pre -mRNA that must be…

Q: YFP-SC35 encodes a splicing factor. You would expect this molecule to be localized in what…

A: The process of transcription occurs in the nucleus. By this process, mRNA gets synthesized from the…

Q: What event in eukaryotes serves as the "trigger" for entering the elongation phase of transcription…

A: Transcription occurs in the three steps—initiation, elongation, and termination. The elongation…

Q: Which of the following mechanisms do prokaryotes use to produce different prdtein products from a…

A: In prokaryotes, the genes encoding proteins of related functions are transcribed under the control…

Q: So I know that most DNA viruses use the cell’s DNA-dependent RNA polymerases to make mRNAs for…

A: cap snatching is a process during transcription initiation that reduces the size of the nucleotide…

Q: During eukaryote transcription initiation, when TFIIE, TFIIA, TFIIB, TFIIF, and RNA pol II all join…

A: Transcription factor is a protein that binds to a specific region in DNA that controls the…

Q: Transcriptional termination generally will include the transcription of an inverted repeat in that…

A: Transcription is the process by which the information in DNA is transcribed onto the mRNA molecule…

Q: List several ways in which RNA is processed after transcription.

A: When an RNA  transcript is first made in a eukaryotic cell, it is considered as pre-mRNA and must be…

Q: What is its functional difference with the RNA polymerases found in both eukaryotic and prokaryotic…

A: RNA polymerase is an enzyme that helps in DNA dependent RNA synthesis. RNA polymerase catalyzes the…

Q: Some organisms have mechanisms in place that will override transcription termination. One such…

A: The HIV-1 (Human Immunodeficiency virus-1) Tat (transactivator of transcription) gene codes for a…

Q: What is something that allosteric effectors that alter the rate of catabolic or anabolic pathways…

A: Enzymes are biological catalysts that alter the rate of biochemical reactions. Allosteric enzymes…

Q: A TATA box is a short, A-T rich sequence of nucleotides located just upstream of genes and is used…

A: Transcription refers to a process in which RNA is synthesized from DNA template. Only one DNA…

Q: A string of 8 uracil nucleotides in the mRNA is required for function of an intrinsic transcription…

A: DNA transmits information to proteins in a continuous flow. DNA controls this basic central dogma…

Q: Why are miRNAs called noncoding RNAs? Explain how they participate in gene regulation.

A: Answer- miRNA are non coding RNA because it does not code for any amino acid to form proteins.

Q: Why does the activity of histone deacetylase tend to inhibit transcription?

A: Histone deacetylase is an enzyme which is involved in the removal of acetyl group from the lysines…

Q: why is GTP hydrolysed in translation termination in bacteria? What are the by-products of…

A: The translation termination occurs when the stop codons are placed near the A site. These include…

Q: A gene contains eight sites where alternative splicing is possible. Assuming that the splicing…

A: Given :  A gene contains eight sites where alternative splicing is possible. To find : The splicing…

Q: Many genes in both bacteria and eukaryotes contain numerous sequences that can cause pauses in or…

A: Central Dogma is a flow of information that is present in the form of nucleotide sequence on the DNA…

Q: TRUE FALSE EF-Ts factor regenerates EF-Tu/GDP from EF-Tu/GTP for the next round of elongation cycle…

A: There are many biomolecules present in an organism and each biomolecule has a specific role.…

Q: RNA polymerases

A: RNA polymerase:It is an important enzyme involved in transcription of DNA to RNA, gene expression.It…

Q: The nascent RNA molecule synthesized during DNA transcription is trimmed (processed) by several…

A: The production of RNA from DNA is known as transcription or gene expression. In eukaryotic cells…

Q: Which one of the following amino acids is phosphorylated during the process of promoter clearance by…

A: The RNA polymerase leads to the synthesis of mRNA. mRNA synthesis is called transcription.  The…

Q: Why is the trp attenuation mechanism unique to prokaryotes?

A: Attenuation is a control mechanism that operates to regulate the expression of genes of an operon.…

Q: A particular mutation in the bacterial sigma factor allows this protein to bind RNA polymerase but…

A: Answer - Option A - It will prevent the transcription termination exerted by the Rho protein

Q: Prokaryotes and lower eukaryotes such as yeast have transcription control elements called upstream…

A: Upstream activation sequences plays essential role in induction, enhancement and expression of gene…

Q: Splicing machinery must recognize three portions of the precursor RNA molecule: the 5’ splice site,…

A: The spliceosome, a huge ribonucleprotein complex, is responsible for removing introns from…

Q: Describe the recognition process by which the tRNA for Nformylmethionine interacts with the portion…

A: N-formylmethionine is a derivative of the amino acid methionine in which a formyl group has been…

Q: in a eukaryote cell, what do we call the DNA sequence that the specific transcription factor binds…

A: The transcription is the process by which RNA is produced from the DNA template. In case of…

Q: The locations of the TATA box in two species of yeast, Saccharomyces pombe and Saccharomyces…

A: The process of transformation of information from the deoxyribonucleic acid (DNA) into the molecule…