In eukaryotes, chromatin remodeling plays an important role is gene regulation. This is because a. repositioning of the nucleosomes makes DNA accessible to transcription regulatory proteins b. the nucleosomes contain important regulatory regions c. chromatin remodeling activates gene expression d. chromatin remodeling represses gene expression

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: A researcher found that she could increase phosphorylation of amino acids adjacent to methylated…

A: Histone Phosphorylation It is associated with transcriptional activation.  It takes place with the…

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…

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A: The mutation refers to change the sequence of nucleotide in a gene.

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Q: The key to epigenetic regulation is ________.   a. controlling accessibility to transcription…

A: Epigenetic regulation of a gene is the interaction by which the activity of a specific quality is…

Q: A chromatin-remodeling complex may a. change the locations of nucleosomes. b. evict nucleosomes from…

A: Nucleosome is the packaging unit in eukaryotes. It is a fundamental subunit of chromatin.…

Q: Can you please answer questions 13,14, and 15 please

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A: Transcription is the process which is responsible for synthesizing the mRNA from the DNA by the…

Q: Through alternative splicing, eukaryotes (a) reinforce gene inactivation (b) prevent transcription…

A: The transcriptional process of genes has some differences in prokaryotic cells and eukaryotic cells.…

Q: Transcriptional activation of eukaryotic genes involves which of the following events? a. Changes in…

A: Nucleosome is the packaging unit in eukaryotes. It is a fundamental subunit of chromatin.…

Q: Mutations in genes encoding chromatin-remodeling complexes have been identified in high frequencies…

A: A mutation is a change that occurs in the deoxyribonucleic acid (DNA)when it is damaged or changed…

Q: Insulators may exert their effect by a. acting as a barrier to changes in chromatin structure. b.…

A: Insulator sequences are the cis-regulatory DNA sequences that protect the gene from inappropriate…

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A: Telomeres are the caps at the end of each strand of DNA that protect the chromosomes, like the…

Q: How is transcription directly controlled in eukaryotic cells? a. through the use of phosphorylation…

A: Transcription refers to a process that transcribes the DNA molecule into a molecule called RNA which…

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…

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A: Transcription is a process in which DNA is converted to RNA.

Q: Describe how chromatin is remodeled to regulate gene expression in eukaryotes

A: Eukaryotes =Eu(true) +Karyon (nucleus). Organism with true nucleus is known as Eukaryotes.

Q: Which of the following methods is utilized by eukaryotes to control their gene expression that is…

A: Gene regulation is the process of controlled expressions of specific gene from the entire genome of…

Q: Q. Which of the following describes the role of acetylation during the chromatin remodeling that…

A: Euchromatin consists of genes that are ready to be transcribed and translated into protein,…

Q: How does adding a methyl or acetyl group to a histone protein alter gene activity?A. A methyl group…

A: Histones are proteins. It gives structural support and shape to a chromosome.

Q: Chromatin remodeling is affected by two processes, DNA methylation and a. base substitution b.…

A: Chromatin remodeling is the dynamic modification of chromatin architecture to allow access of…

Q: In studies on chromatin it has been reported that DNA that is being actively transcribed is more…

A: DNA- “deoxyribonucleic acid” is a complex structure that carries the unique genetic code of every…

Q: Euchromatin refers to regions of DNA that are loosely packed to increase the efficiency of…

A: The nucleus of the cell contains DNA. DNA is the basic hereditary material of an organism.  The DNA…

Q: How does chemical modification of the histones lead to changes in chromatin structure? Choose all…

A: Chromatin It refers to the complex of DNA and proteins that forms chromosomes in the nucleus of…

Q: Which of the following does not accurately describe eukaryotic transcriptional factors? a. Changes…

A: Introduction Transcription factors are the proteins that specifically are involved in the…

Q: Which of the following is an explanation for how there can be differential gene expression…

A: Ans-C) There are unique combinations of transcription factors in different tissues of the organism…

Q: Discuss the mechanisms by which transcription factors influence the reprogramming of somatic cells…

A: Somatic cells are similar to human beings in that they develop to fulfill a specific purpose in…

Q: chromodomains? a) b

A: Answer Chromodomain bind methylated histone tail and are associated with repression.

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Q: Which one of the following statements about nucleosomes is false? a) The DNA double helix wraps…

A: Introduction Nucleosomes are eukaryotic chromatin's basic repeating structural units, comprised of…

Q: What would happen to an insulator (for example, like the ICR between the Igf2 and H19 genes) if it…

A: Insulator are cis-regulatory elements. Upon binding by insulator binding proteins, they prevent…

Q: Nucleosome-free regions: A) are always only associated with genes that are being actively…

A: Introduction :- The organization of genetic material in eukaryotic organism's nucleus is done with…

Q: Which of the following statements is most consistent with the pattern of gene expression shown in…

A: Gene expression is defined as the process by which the instructions and directions present in the…

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A: Chromosomal deletion is simply deletion of the part of the chromosome. Chromosomal inversion is a…

Q: 1.  Two closely related species may have a very similar genome size but very different number of…

A:

Q: Fruit flies with DNA transposons known as P elements are known to have 1.gene silencing factors in…

A: P elements - these are transposable elements  that were discovered in drosophilia as the causative…

Q: According to the histone code hypothesis, the pattern of histone modifications acts like a language…

A: Histone code hypothesis states that the regulation of gene is partly dependent on the modification…

Q: You are studying pancreatic cancer have matched samples of tumor and healthy pancreatic tissue. You…

A: Introduction DNA microarray is a method for determining the level of gene expression. By knowing the…

Q: Why must chromatin be remodeled at a eukaryotic promoter? Histone proteins must be added to the…

A: Eukaryotic DNA remain associated with histone proteins and form a specialised structure that is…

Q: e given below characteristics which are typical of a eukaryotic gene that can be transcribed? 1.…

A: The fundamental membrane-bound unit known as a cell is frequently referred to as the foundation of…

Q: ccording to the histone-code hypothesis, what is one way that cell specialization occurs? a)…

A: Histone code hypothesis : It was proposed by Strahl and Allis . Multiple histone modifications ,…

Q: 1. Where would the RNA polymerase II bind this piece of DNA = region B 2. What DNA sequence would…

A: 1. DNA polymerase 2 binds with the piece of DNA - B & A. Explanation - Region B is the - 80 CAAT…

Q: Transcription factors a. help the RNA polymerase bind DNA b. are involved in chromatin remodeling,…

A: Introduction “Transcription Is The Process Of Gene Expression That Involves The Synthesis Of RNA…