The nucleosomal core in eukaryotes consists of all of the following histone proteins except: histone H1 histone H2A histone H2B histone H3 histone H4

Q: Define histone variant, and explain why histone variants are functionally important.

A: A complex of macromolecules consisting of DNA (deoxyribonucleic acid), RNA (ribonucleic acid), and…

Q: True or False 1. Histone proteins are able to associate with DNA segments because of the anionic…

A: Nucleic acid:  It was first discovered by " Friedrich Miescher", from the pus cells nuclei . Nucleic…

Q: Which of the following terms is used for the various forms of any one a) Autosomes b ) Codons c)…

A: Genes have a variety of different forms which are located at the same position or can be called…

Q: How does histone acetylation alter chromatin structure? (300 word limit)

A: Histones known as a protein which provides chromosomes with structural support. These are usually…

Q: True or False.  De-acetylation of histone tails allows nucleosomes to pack together into tighter…

A: DNA is the nucleic acids present in the organisms. DNA is the deoxy ribose nucleic acid in which…

Q: Which of the following DNA types forms the nucleolar organizer (nucleolus)?     centromeric…

A: 1. Centromeric heterochromatin: it is the part of the chromatin that is transcriptionally inactive…

Q: Define: genome, gene (structural & regulatory), chromosome, histone protein.

A: The hereditary material that is found in the cells of all living forms is referred to as genetic…

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: Explain the steps in Histone Modification in the process of Phosphorylation. Take note, important…

A: Histones are proteins that associate with DNA to help in the condensation into chromatin. They are…

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: 1. The histones that form the tetrasome.        2. The histones added to the tetramer to form the…

A: Histones are proteins responsible for DNA packaging, they are positively charged and so can easily…

Q: • In a ______________, DNA wraps twice around a corecomposed of histones H2A, H2B, H3, and H4.…

A: Chromosomes are the structure in which genes are located. Eukaryotic chromosomes are composed of…

Q: Below you will find the normal p53 gene found on chromosome 17 and a mutated version of the gene.…

A: To solve such questions, we should know the corresponding complementarity between the bases and that…

Q: Some evidence suggests that synonymous codons are not really synonymous. Sometimes mutations that…

A: Groups of three nucleotides represent all 20 amino acids. Each nucleotide triplet is called a codon.…

Q: Describe in general terms the histone code hypothesis

A: The Histone code is a hypothesis where a DNA  encodes the genetic information of transcription which…

Q: Mention the function of non-histone protein.

A: The chromosomes are thread-like structure located in the nuclei of both plant and animal cells. They…

Q: How does histone acetylation change chromatin structure? Group of answer choices 1. Histones lose…

A: Chromosomes are the condensed form of the chromatins. It contains DNA that contains histone proteins…

Q: what are we looking at in part (b)? Is this an11-nm fiber, a 30-nm fiber, or a 300-nm fiber? Does…

A: DNA is the main constituent of the chromosome. It contains all information about protein that forms…

Q: Histones are proteins that control gene function by attaching through salt links to exterior regions…

A: DNA or deoxyribonucleic acid is a polymer of deoxyribonucleotides connected together via…

Q: 34. Chromatin is composed of roughly equal amounts of DNA and proteins called histones. Nucleosome…

A:

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: Name the 5 types of histones, Which form the nucleosome core and which histone holds the nucleosome…

A: Histones are protein biomolecules that are responsible for stabilizing and condensing the DNA of…

Q: Histone proteins are among the most highly conserved proteins in eukaryotes. histone h4 proteins…

A: Proteins are large, complicated molecules that perform numerous functions in the human body. Protein…

Q: Some chromatin remodeling factors use energy from ATP hydrolysis to slide nucleosomes.shifting…

A: Chromatin remodeling can significantly alter gene expression. It is studied under the domain of…

Q: Loosening the chromatin structure occurs because of Select one: a. Lysine methylation b. Lysine…

A: Euchromatin: Euchromatin is a type of chromatin (DNA, RNA, and protein) that is densely packed with…

Q: You have created three different mutations in the histoneH1 protein (HISmut1, HISmut2, HISmut3), and…

A: Histone 1 is a type of protein involved in chromatin remodelling. It is a part of histone protein…

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: 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: Both statements are false. I. Adding acetyl groups in the histone tail restricts access to genes.…

A: Introduction:- Histones: In chromosomes, there is a type of protein called chromosomal protein.…

Q: Which illustration below correctly depicts the effect of histone modification in chromatin…

A: The power of ATP is used by chromatin remodelers to move DNA around nucleosomes. Remodeler…

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: What is the result of histone tail deacetylation on histone-DNA interaction? O Increase in positive…

A:

Q: Histones are proteins that are found to be challenging to investigate and part of an enormous family…

A: Histones/ Histone protein : Histones are a family of basic proteins that associate with DNA in the…

Q: Suppose histones had a high percentage of negatively charged amino acids. What do you predict would…

A: Histones are the packaging proteins that bind to DNA.

Q: xplain the steps in Histone Modification. Take note, important enzymes and chemicals are needed in…

A: Nucleosome containing acetylated lysine are more prevalent in euchromatin than heterochromatin

Q: Histone genes are unusual among eukaryotic genes because they do not have introns, and histone mRNAs…

A: A histone is a protein that provides structural support to a chromosome. In order for very long DNA…

Q: Contrast histone and nonhistone proteins in terms ofstructure and function.

A:

Q: Describe the distinguishing features of the solenoid and zigzag models

A: The solenoid and zig-zag model both describe the pattern in which DNA is packed with the help of…

Q: 1. The four core histones are relatively small proteins with a very high proportion of positively…

A: Histone proteins are tiny structure that are made up of 8 proteins and are safely stored inside the…

Q: Define the following terms: a. histone b. heterochromatin c. spermine d. intergenic sequences e.…

A: DNA is packaged into the cell nucleus after packaging into nucleosomes. The DNA contains regions of…

Q: Histones are: Group of answer choices Are present in eukaryotic, but not prokaryotic chromosomes…

A: Introduction: In the packaging of DNA into the cell, the histones play a critical role. They order…

Q: Define copy number variants (CNVs)

A: The chromosomal alteration could be the structural or numerical abnormalities that exist in an…

Q: Which structure in the eukaryotic chromosome is about 700-840 nm in diameter, contains scaffold…

A: One solenoid is composed of 6 nucleosomes. It is defined as a packaging material of DNA and is a…

Q: Histone H1: a) makes up the core particle  b) associates with linker DNA c) is not present in the…

A: Deoxyribonucleic acid (DNA) stores the cell’s genetic information and is present in the nucleus of…

Q: Spliceosomes include all of the following EXCEPT   enzymes catalyzing acetylation of histone…

A: Introduction: The splicing of RNA occurs by a large complex known as the spliceosome. It contains…

Q: 1. Methylation of DNA and acetylation of histones are directly correlated. 2. Histone demethylation…

A:

Q: Consider the following segment of DNA, which is part of a linear chromosome: LEFT…

A: RNA transcription is a process where double-stranded DNA is transcribed into mRNA. This mRNA is…

Oogenesis

The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase. 

Cell Division

Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons: