Answered: Histone modifications may typically…

Histone modifications may typically decrease expression of a gene by removing histone acetylation and [Select] histone methylation, causing the chromatin to become more loosely packed.

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

See similar textbooks

Related questions

Q: Explain how methylation of cytosine nucleotides can affect gene expression in one way. Explain how…

A: DNA is a polymer made up of a nucleotide monomer. The double strands of the DNA are joined through a…

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 of the following statement O It enables RNA polymerase to bind to the DNA O It is rarely found…

A: Histone deacetylase is a category of enzymes that take away acetyl group teams (O=C-CH3) from an…

Q: Replacement of histones with variant histones will cause an increase in the compaction of the gell…

A: Answer: Histone : These are the Octameric proteins around which DNA winds to form a structural unit…

Q: Which statement is FALSE? Group of answer choices Histones are very conserved at the primary…

A: 2nd statementis false. H1 doesn't contain histone fold domain. H2A, H2B, H3 and H4 have HFD

Q: What is the difference between chromatin-remodeling and histone modification?

A: In any event nine unique sorts of histone changes have been found. Acetylation, methylation,…

Q: Lactose intolerant individuals do not produce the enzyme lactase. Studies show that the gene that…

A: Lactose sugar is obtained from milk products and milk. When people do not produce enough lactase…

Q: In eukaryotes which of the following combination of chromatin conditions would be most likely to…

A: Eukaryotes are organisms whose cells have a nucleus enclosed within a nuclear membrane.Eukaryotes…

Q: Explain the role of allostery as being one of the regulating properties of gene expression.

A: An enzyme is a biocatalyst that speeds up the chemical reaction. It is a protein that is made of…

Q: A region of a eukaryotic chromosome that is gene-rich (i.e. contains many genes) would be expected…

A: The presence of a membrane-bound nucleus is the primary feature that distinguishes a eukaryotic cell…

Q: Compared to heterochromatin, euchromatin is O comprised of densely packed nucleosomes and with…

A: Heterochromatin is characterized as the region of the chromosome which is obscurely darkled stained…

Q: In contrast to histone acetylation, which always correlates with gene activation, histone…

A: Histone acetylation and deacetylation are the mechanisms that ensure that lysine residues inside the…

Q: Enzymes that acetylate the ε-amino group of lysine in the histone tails are called ____ and are…

A: Histones are protein molecules present in nucleosome core of the chromatin material around the…

Q: If histones are acetylated on a lysine amino acid (an epigenomic mark), are genes in this region…

A: Epigenetics is the branch of genetics that deals with changes in gene expression (no change in the…

Q: One of these is not part of the nucleosome core but is thought to participate in locking the two…

A: The fundamental subunit of chromatin is termed nucleosome. The nucleosome is made of two turns 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: What does the statement above mean

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: Briefly explain how different modifications of histone protein affects the epigenetics of a gene

A: Epigenetics is the study of the gene in which DNA sequence does not change. The epigenetic change…

Q: Describe the process of transcription in eukaryotes from the time the RNA polymerase binds to the…

A: The process of transcription in eukaryotes occurs in the nucleus of the cells and it includes the…

Q: Histone methylation alters the chromatin structure with varied effects depending on the specific…

A: Chemical modification of all histone proteins occurs. The modification that occurs at histone…

Q: List and describe four mechanisms used during eukaryotic regulation of gene expression that are NOT…

A: Eukaryotes means those organisms which has true nucleus(true nuclear envelope)while prokaryotes have…

Q: An old genetic observation is that a normally active gene will be silenced if it is moved by…

A: Histone alterations are linked to different transcription stages and functions, and epigenetic…

Q: Histones can be modified to turn genes on and off. Which type of chromatin is associated with…

A: Chromatin is a complex form of DNA molecule and Histone protein which was found in eukaryotic…

Q: asic amino acids including lysine. DNA and histones collectively form chromatin. Open open and…

A: Histones can be defined as the family of basic proteins that are associated with the DNA in the…

Q: Discuss histones and how methylation and acetylation of DNA and histones can affect the production…

A: Histone modifications are related to the structural changes that mainly happen during the time of…

Q: Show why acetylation of the histone prevents it from interacting with DNA.

A: Histones are a group of simple proteins that bind to DNA within the nucleus and allow it to condense…

Q: Examination of the histone modifications around a gene reveals an abundance of histone H3 with…

A: This gene is likely activated since the mono-methylation of the Lysine residue at position 27 in…

Question

Histone modifications may typically decrease expression of a gene by
removing
histone acetylation and [Select]
histone methylation, causing the chromatin to become more loosely
packed.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

Explain why a heteroduplex region may be produced after branch migration occurs.
Describe how methylation and acetylation of the histones changes gene expression in eukaryotes. What groups are added? How do these processes physically affect chromatin structure? Silencing or Enhancing expression?
Why must chromatin be remodeled at a eukaryotic promoter? Histone proteins must be added to the promoter so they can recruit RNA polymerase II Histone proteins are blocking promoter sequences recognized by general transcription factors (GTFs) Space needs to be made for the ribosome to bind to a nascent (i.e. newly transcribed) mRNA Because enhancer regions need to be exposed for general transcription factor binding To allow the spliceosome to remove exons from the mRNA during transcription
If an organism's cells were to not want a specific sequence of DNA transcribed for a long period of time, which of the following processes below would most likely allow for this to happen? O DNA acetylation O DNA methylation O histone methylation O histone acetylation
Which of the following mutations in the protein-coding region of a gene is more likely to lead to complete loss of function of the encoded protein: an insertion of six nucleotides or a deletion of two nucleotides? Briefly explain your answer.
Please help
You discover a histone variant that has more positive charge than conventional histone proteins. What effect do you predict this histone variant would have when it is inserted into chromatin? A decrease in the strength of histone-DNA interaction, making chromatin less condensed and increasing gene expression An increase in the strength of histone-DNA interaction, making chromatin less condensed and decreasing gene expression An increase in the strength of histone-DNA interaction, making chromatin more condensed and decreasing gene expression O A decrease in the strength of histone-DNA interaction, making chromatin less condensed and decreasing gene expression
Can you please help with 1a,1b, and 1c please 1a. Find a paper published in a scientific journal between January 2018 and September 2022 that addresses the role of an example of histone modification in affecting expression of a gene by altering histone acetylation/chromatin state of the DNA encoding that gene. What organism and/or cell type did the authors do their study in? 1b. Which histone(s) were affected by the acetylation and/or deacetylation? What gene did they show had altered expression levels in response to the change in histone acetylation? 1c. what effect did the histone modification they studied have on that gene's level of expression - was expression of the gene they examined increased or decreased?