25. Which of the following describes the role of acetylation during the chromatin remodeling that accorpanies gene expression? A. It adds an acetyl group to the DNA of a promater sequence. B. it adds an acetyl group to the histone protecting the promoter region of a gene. C. it adds an acetyl group to the cytosine nucleotides of DNA. D. It adds an acetyl group to the histone protecting the transcription unit of a gene.

25. Which of the following describes the role of acetylation during the chromatin remodeling that accorpanies gene expression? A. It adds an acetyl group to the DNA of a promater sequence. B. it adds an acetyl group to the histone protecting the promoter region of a gene. C. it adds an acetyl group to the cytosine nucleotides of DNA. D. It adds an acetyl group to the histone protecting the transcription unit of a gene.

Name: 25. Which of the following describes the role ofacetylation during th
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Description: 25. Which of the following describes the role ofacetylation during the chromatin remodeling thataccorpanies gene expression?A. It adds an acetyl group to the DNA of apromater sequence.B. it adds an acetyl group to the histoneprotecting the promoter

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter16: Regulation Of Gene Expression

Section: Chapter Questions

Problem 5TYK

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1.Describe the process of transcription in prokaryotes, then explain how proteins can be targeted for specific sites within the cell. b)What is the role of the enzymes and proteins involved in DNAreplication?
1. Transcription: a)State the role of RNA polymerase in gene transcription.b. Explain why the DNA is not used directly for protein translation (i.e., why is mRNA used instead?).c. Explain what occurs when a gene’s promoter region is open for RNA polymerase binding.d. Explain what occurs when a gene’s promoter regions is blocked from binding RNA polymerase.e. Explain how two cells, such as liver cells and skin cells, can become specialized in structure and function despite containing the same genome.
Q. Which of the following describes the role of acetylation during the chromatin remodeling that accompanies gene expression? A. It adds an acetyl group to the DNA of a promoter sequence. B. It adds an acetyl group to the histone protecting the promoter region of a gene. C. It adds an acetyl group to the cyotsine nucleotides of DNA. D. It adds an acetyl group to the histone protecting the transcription unit of a gene.
A binding .site for RNA polymerase is called a ___ . a. gene b. promoter c. codon d. protein
5. Consider the following examples that include both haploids and partial diploids and explain in each scenario a. whether the repressor can bind and regulate expression and b. whether or not the lac operon is expressed. For partial diploids the plasmid is indicated by the F’. I + O +Z + Y + / F’ I+ O + Z + Y + I - O + Z + Y + / F’ I+ O + Z + Y + I - O + Z + Y + I + O c Z + Y +
2.How does Aceto-Orcein interact with the chromosome? Give detailed information.
1.This is where the RNA polymerase is bound and a short region of DNA is accessible to begin the process of transcription. Group of answer choices a. Closed Promoter Complex b. Open Chromatin c. Closed Chromatin d. Open Promoter Complex 2.The nucleotide near the 3' splice site of an intron that joins with a Guanine located at the 5' splice site by a 2'-to5' phosphodiester bond is called the: Group of answer choices a. Branch Point Adenine b. Branch Point Thymine c. Branch Point Uracil d. Branch Point Cytosine 3.The form of chromatin in which histone 1 partially condenses chromatin fibers into a coiled form is called: Group of answer choices a. 10 nm fibers b. Heterochromatin c. 300 nm fibers d. Solenoid 4.Exchange of genetic information between homologous chromosomes. Group of answer choices a. Homologous Recombination b. Gene Flow c. Gene Conversion d. Homologous Repair
8 There is a promoter of a tumour suppressor gene in a mutant cancer cell line, and discover that instead of a nucleosome free region 5’ of the transcription start site there are nucleosomes bound. What would be the likely consequence on transcription of this gene? I am not sure about what is the outcome, normally it binds to the nucleosome free region 5' of the transcription start site to initiate transcription. Now, it binds with nucleosomes. What will happened? Is the DNA cannot transcripted successfully? Due to the transcription needs a naked DNA to process while in nucleosomes, DNA has been wrapped up. Thank you.
4. Gene expression in mammals can be increased by which of the following mechanisms? A. X-chromosome inactivation (as in the case of the female tortoiseshell cat) B. histone demethylation C. histone methylation D. histone deacetylation E. histone dephosphorylation 5. Which of the following DNA components is found on the exterior of this double-stranded molecule? A. the nitrogenous bases B. the pyrimidine bases C. the ribose sugars D. the purine bases E. the phosphates
4. Assuming the translation product is an enzyme, explain its role in the final expression of a phenotype.
2) Briefly describe 6 different ways that eukaryotic cells typically regulate Gene Expression
1. Why aren't ssb proteins necessary in transcription?