Describe how scientists use position effect variegationto study the mechanisms underlying the formation ofheterochromatin.

Q: Describe how reversible chemical changes to histones are linked to chromatin modification.

A: Histones are basic proteins associated with DNA in the nucleus and allow it to condense in chromatin…

Q: So, if the answer is correct, enter N/A in the short answer below. If the answer is false, correct…

A: Transcription is the process of copying the genetic information from the DNA into RNA and it is then…

Q: During S phase, how are histonesand their modifying enzymescontrolled to replicate…

A: Cells reproduce by a cycle of growing and dividing called a cell cycle. The cell cycle is the…

Q: describe the telomere shortening problem and how it is solved by telomerase?

A: Telomeres are repetitive sequences of DNA (none coding) strand that protect the chromosome from…

Q: Consult Figure 2. Would you consider this figure to be depicting euchromatin, or heterochromatin,…

A: Chromatin exists as euchromatin or heterochromatin. Euchromatin are loosely bound,less condensed,…

Q: Briefly describe three ways that ATP-dependent chromatin-remodeling complexes may change chromatin…

A: In past few years, for the identification and characterization of the ATP-dependent…

Q: A). Briefly describe the function of telomerase. B). How does the structure of telomerase allow it…

A: Hello! Since you have posted multiple questions, we are answering the first question only. Kindly…

Q: Explain the strand elongation stage?

A: Transcription is the first stage in gene expression. In this process, the sequence of DNA of a gene…

Q: Describe the molecular steps by which polycomb group complexescause epigenetic gene silencing.

A: The PcG protein complex (Polycomb group) is one of the two protein complexes involved in the…

Q: scribe how the acetylation of core histones may loosen chromatin packing.

A: DNA is the genetic material is usually found in all prokaryotic and eukaryotic cells. DNA is made up…

Q: Define the Chromatin Remodeling ?

A: Genes are the hereditary unit of an organism. The genes have DNA (deoxyribonucleic acid) which code…

Q: Define how chromatin signature is a powerfuland reliable predictor of MAE activity ?

A: MAE( Monoallelic gene expression) is the phenomenon of the gene expression, when only one of the two…

Q: Describe the action of telomerase and identify the celltypes in which it continues to be…

A: Chromosomes are long thread-like structures that carry coded genetic information in the form of…

Q: Explain the extended and condensed forms of extracted chromatin that have very different appearances…

A: Chromosome contains the genetic material which is the DNA the dna of eukaryotes is large so it is…

Q: Explain the chromatin remodeling complexes ?

A: In eukaryotes, the DNA is firmly twisted and tightly coiled into a complex called Chromatin. This…

Q: What is the difference between a genetic map and a physical map? Which generally has higher…

A: Genes are the basic structural and functional unit of heredity. They carry coded genetic information…

Q: What are euchromatin with rexamples?

A: Chromatin is the complex formed by the condensation of DNA and histone proteins. It is involved in…

Q: Describe nucleosome supercoiling and its relationship to the radial loop–scaffold model of chromatin…

A: DNA being a large molecule, is packed with histone proteins to form a very compact structure known…

Q: What is chromatin remodeling complex?

A: The complex of proteins and DNA in eukaryotic cells is called chromatin. This is the packed or…

Q: How is chromatin immunoprecipitation used to determine the locations of histone modifications in the…

A: Histone modifications occur through post-translational modifications of residues of amino acids like…

Q: Describe constitutive heterochromatin and facultative heterochromatin. Based upon this information,…

A: A nucleic acid is a linear polymer of nucleotides that carries the cell's information. DNA…

Q: Compare and contrast Heterochromati Euchromatin, Give at least 5 difference

A: A complex of DNA and proteins that forms chromosomes within the nucleus of eukaryotic cells is known…

Q: Artificial chromosomes have been used as cloning vectorsand in studies to identify the functional…

A: Artificial chromosomes are cloning vectors that can carry DNA inserts orders of magnitude larger…

Q: Why are there so many differentchromatin remodeling complexes incells? What are their essential…

A: Chromatin remodeling is one of the most important concepts. It uses the energy from the hydrolysis…

Q: Explain, How does histone acetylation alter chromatin structure?

A: DNA is the genetic material present in the cell.

Q: How the process of chromatin condensation is performed?

A: As we understand, the cell DNA is never exposed and unaccompanied by different proteins. Maybe, it…

Q: import processes of histones which are synthesized in the cytosol but function in the nucleus to…

A: Replication and Transcription Replication is a process in which DNA makes copies of itself to ensure…

Q: Describe the function of telomere repeat-binding factors.

A: Telomeres are the ends of chromosomes. they are made up of short repetitive sequences and prevent…

Q: Explain how the acetylation of core histones may loosen chromatin packing.

A: DNA is the genetic element in all cell types of prokaryotic and eukaryotic. DNA is double stranded…

Q: Discuss the role and relevance of chromatin in the storage, expression and transmission of genetic…

A: Chromatin is the material that makes up a chromosome that consists of DNA and protein. The reason…

Q: Explain the special mechanism used to replicate chromosome ends

A: End replication problem occurs in the linear eukaryotic chromosomes where the ends of chromosomes…

Q: Describe the steps of the chromatin immunoprecipitation assay.   What are some of the scientific…

A: Chromatin is a substance present inside a chromosome which consists of DNA and protein.DNA carries…

Q: By using PEV how to identify heterochromatin components?

A: Heterochromatin is a type of chromatin. Chromatin is a structure of DNA wrapped around histone…

Q: You have used the technique of chromatin immunoprecipitation to isolate DNA fragments containing a…

A: In chromatin immunoprecipitation assay (ChIP) first tissue or cells are fixed with the help of…

Q: What is the unit of a genetic map?  A. centimorgan B. angstrom C. joule D. centimeter

A: The genome of an organism represents all the genetic information contained within the cells. This…

Q: What are epigenetic marks? Which are associated withheterochromatin? How are epigenetic marks…

A: DNA/RNA is the genetic material of organisms. This genetic material is in charge of character…

Q: Outline how histone methylation and acetylation affectchromatin structure

A: Gene expression may be done by the transcription of DNA into mRNA and formation of polypeptide…

Q: Describe the function of telomere end-binding proteins

A: Introduction:The eukaryotic chromosomes are linear or rod-shaped having an end. during replication,…

Q: Define telomere and describe the possible connections between telomerase and cell aging and between…

A: Telomerase is an enzyme made of protein and RNA subunits. The function of telomerase is to elongates…

Q: ate on the process of euchromatin and heterochromatin during the chromosome compaction.

A: The nucleus of well define cell that is eukaryotic and contains highly compressed deoxyribonucleic…

Q: Describe how chromatin-remodeling complexes alter nucleosomes.

A: In order to control the gene expression, the regulatory transcription machinery proteins must access…

Q: Give examples of constitutive and facultative heterochromatin in:a. Drosophilab. humans

A: The heterochromatin is a tightly packed form of DNA (deoxyribonucleic acid). These are classified…

Q: Describe how reversible chemical changes to DNA and histones are linked to chromatin modification.

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: What size DNA fragment would be released after very mild digestion of chromatin with micrococcal…

A: Introduction  Micrococcal nuclease in as example of endo-exonuclease which is obtained from…

Sleep Physiology

Sleep is a condition of reduced muscle movement in the body. Awareness about the surroundings is reduced at the time of sleep. The body stays mildly responsive or non-responsive to external stimuli. The sleep-wake cycle is controlled by the circadian rhythm that produces a resting phase for the body.