Eukaryotic transcription  A. is independent of the presence of upstream consensus sequences. B. may involve a promoter located within the region transcribed rather than upstream. C. requires a separate promoter region for each of the three ribosomal RNAs transcribed. D. requires that the entire gene be in the nucleosome form of chromatin. E. is affected by enhancer sequences only if they are adjacent co the promoter

Q: 67 RNA interference was first discovered in Drosophila melanogaster. Yes or no 68 Which of the…

A:

Q: Exons 1, 2 and 3 of a human gene are 156, 224 and 524 bp long respectively. The introns 1 and 2 are…

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Q: Which of the following mutations could be appropriately describedas a position effect?A. A point…

A: The mutation is caused due to alteration occurred in the gene sequence due to either environmental…

Q: The insertion of transposable elements into genes can alter the normal pattern of expression. In the…

A: NOTE:-  As you have posted multiple questions under one, we will solve the first part for you, to…

Q: transcriptional repressor leading to decreased gene expression. a. chromatin remodelling complex…

A: Transcriptional repressors are the molecules that block/inhibit gene expression. They directly act…

Q: An enhancer:  A. is a consensus sequence in DNA located where RNA polymerase first binds. B. may…

A: An enhancer refers to a sequence in the region of DNA that bind to certain transcription factors and…

Q: A. RNA polymerase does not require a template. B. all RNA is synthesiud in the nucleolus. C.…

A: Transcription is a process, during which RNA strand is synthesized over the DNA.

Q: Within a promoter, a transcriptional start site isa. located at the –35 sequence and is recognized…

A: In this question we discuss gene transcription in prokaryotes. Gene transcription in prokaryotes is…

Q: egulatory proteins in Prokaryotes shut off transcription by binding to a site immediately in front…

A: In the given question options are given in accordance to regulation of transcription in prokaryotic…

Q: Select one or more: O a. by the interaction of Rho and Rho binding sites in RNA. O b. by the…

A: Transcription is the process of making mRNA from DNA.it is always in the 5' to 3' direction.

Q: Name the lambda promoters whose expression is regulated by the cro protein. For each promoter you…

A: CI represses cro and Cro represses cI. This is referred to as the double-negative feedback loop and…

Q: The primary function of 5' & 3' end mRNA modification is: a. To ensure that phosphorylation of the…

A: The mRNA synthesized by transcription undergoes modifications before they bind with ribosomes for…

Q: For a riboswitch that controls transcription, the binding of a small molecule such as TPP controls…

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Q: Transcriptional regulation often involves a regulatory protein that binds to a segment of DNA and a…

A: The process involved in regulating copying of instruction from the DNA into RNA is called…

Q: to that in humans. The molecule that is most similar in function to the bicoid and the molecule that…

A: Introduction Transcription is a process in central dogma where the DNA strand is transcribed into a…

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: How would you describe the "purpose" of alternative splicing? Alternative RNA splicing... is a…

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Q: Which of the following is true of CpG islands? a. They are methylated near promoters of actively…

A: Deoxyribonucleic acid is a molecule composed of two polynucleotide chains. It coils around each…

Q: Gene expression regulation by methylation of the cytosines in a promoter would be considered

A: Answer - Option B - Transcriptional regulation

Q: In the table below the product of gene R binds to the promoter of gene A. What happens in (b)? a.…

A: Positive regulators are structural components that allow RNA polymerase to attach to the promoter…

Q: Specific transcription factors in eukaryotes interact with enhancers, which may be a long distance…

A: Transcription is the process by which mRNA is transcribed from double-stranded DNA. The core enzyme…

Q: Discuss the structure and function of regulatory elements. Where are they located relative to the…

A: A eukaryotic organism is made up of several genes. It is essential to ensure that not all genes are…

Q: Is each of the following statements true or false? A. An enhancer is a type of regulatory element.…

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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: Termination of a prokaryotic transcript A. is a random process. B. requires the presence of the…

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Q: Most transcriptional activator proteins affect transcription by interacting with a. introns. b. the…

A: Most transcriptional activator proteins affect transcription by interacting with the basal…

Q: Which of the following statements about methylation and acetylation is correct? A. Genes that have…

A: Introduction Deacetylation is the removal of an acetyl group and occurs on a plethora of targets and…

Q: Eukaryotes can control transcription by three overall type of process, they are ( selection from…

A: The regulation of transcription is more complex in eukaryotes as compared to prokaryotes. This…

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: Which of these is used in the transcription of all genes? Choose all correct answers.         A.…

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Q: Which of the following regions of the DNA is transcribed by RNA polymerase AND is “understood” by…

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Q: Which of the following is generally true about eukaryotic gene regulatory regions? a. All regulatory…

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Q: The TATA box binding protein binds to the TATA box. What is the DNA sequence of this region of the…

A: TATA box is a DNA sequence.

Q: 26. Synthesis of a repressible enzyme is stopped by a the allosteric transition b. the substrate…

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Q: Histone deacetylase (HDAC) enzymes   a.Promote initiation of translation. b.Complex with…

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Q: Nucleosome positioning could affect the transcriptional activity of a gene.

A: Packaging of eukaryotic genomes into chromatin affects every process that occurs on DNA. The…

Q: What is one function of TFIIH during transcription?    a. Recruiting the TATA-box binding protein…

A: Transcription factor II Human is a crucial protein complex which have important role in…

Q: The phosphorylation of the RNA polymerase II tail is important for the following EXCEPT a.the…

A: Among many subunits, the largest subunit of RNA polymerase 2 (RBP1) has a long carboxy-terminal tail…

Q: onsidering the 7 levels of gene regulation, which of the following mechanisms acts at first level?…

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Q: Which of the following characteristics is typical of a eukaryotic gene that can be transcribed? a.…

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Q: The recruitment of Histone deacetylase (HDACS).... O a. Enzymatically adds acetyl groups to E2f…

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Q: . Dosage compensation is necessary because a. some regions of the genome contain more genes than…

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Q: A certain Drosophila protein-encoding gene has one intron. If a large sample of null alleles of this…

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Q: Describe 3 ways by which transcription could be regulated (Hint 3 methods/tools/mechanisms that a…

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Q: Identify the mutation(s) that lead to the most loss in transcriptional activity, and discuss whether…

A: Consensus sequence are regions in genome that are conserved i.e. throughout the course of millions…

Gene Interactions

When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.

Gene Expression

Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.