Histone _______ is not part of the histone octamer, but binds to linker DNA and is responsible for higher-order chromatin structure A-H1 B-H2A C-H4 D-H3 E-H2B

Q: Less condensed region of an interplase chromosome that stains diffusely. Which one Beads on a…

A: Chromosomes are made up of both proteins and DNA. Chromosomes are compact form of DNA formed when…

Q: When chromatin is in the form of a 30 nm fibril, how many copies of H1 and H2A histone proteins…

A: The DNA is wrapped around the nucleosome within the cell to form chromatin. Nucleosome – it is a…

Q: In a nucleosome, the DNA is wrapped around(A) histones.(B) ribosomes.(C) polymerase molecules.(D) a…

A: The chromosomes are tightly packed bundles of chromatin. The chromatin consists of nucleosomes…

Q: Cell (A) contains 3.1 billion (3.1 x 109) base pairs of DNA. Each nucleosome has about 200 bp of DNA…

A: The eukaryotic DNA or chromatin is organised in a special structure that is known as nucleosome.…

Q: In the image below, which arrow denotes the protein that forms the nested DNA loops in chromatin?…

A: Linker histones (H1 and its variations) or HMG proteins bind lengths of DNA that connect adjacent…

Q: What's the length of the DNA around histone core in a nucleosome? 50 base pairs 146 base pairs 8…

A: Nucleosome:- Histones are responsible for the first level of DNA packing and most basic level of…

Q: Chromatin is OA complex of cohesin proteins O Where sister chromatids are most closely attached A…

A: Biological macromolecules are those large molecules that are necessary for the survival and growth…

Q: In nucleosome, the DNA is wrapped around a. histones b. ribosomes c. polymerase molecule d. a…

A: The nucleosome is the fundamental subunit of chromatin. They are structural building blocks of the…

Q: Which of the following is not a major class of chromatin proteins?a) Histonesb) Topoisomerasesc) SMC…

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

Q: All of the following statements regarding nucleosomes are true EXCEPT A each bead-like structure…

A: The length of DNA is about 5 feets. This 5 feets long DNA needs to be placed in nucleus of every…

Q: DNA forms a thick fiber that is formed into structural loops. This formation is associated with... O…

A: Introduction: DNA stands for the deoxyribonucleic acid. It is a biomolecule that is composed of two…

Q: The nuclei and their chromatin are fragmented into pieces by endonuclease enzymes Karyolysis A O…

A: Endonucleases are enzymes that cleave the phosphodiester bond within a polynucleotide chain.

Q: Many proteins other than histones are found associated with chromosomes. What roles do these…

A: Histones are basic proteins that are associated with the DNA present in the nucleus and help in…

Q: The autophagosome fuses with an endosome to form a(n) _____________.

A: Autophagosomes are double membrane sequestering vesicles that are the hallmark of the intracellular…

Q: TRUE OF FALSE: methylated chromatin is easily transcribed

A: Chromatin can be defined as the complex formed when DNA is wrapped around proteins in chromosomes'…

Q: Which of the following statements about histones is true?a. They are proteins whose sequence is…

A: The chromosomes are duplicated during the process of cell division. The process of  cell division…

Q: During replication, new nucleosomes assemble on thedaughter DNA molecules. Regulatory proteins bind…

A: DNA replication refers to the process in which two similar DNA molecules are formed from one parent…

Q: Describe the appearance and composition of chromatin and the structure of nucleosomes. Comment on…

A: Answer- Chromatin is uncondensed genetic material which is present in the nucleus most of the time…

Q: Drag the term or statement to the correct column. Molecular Mechanism Change Cis or trans…

A: Epigenetics is the study of heritable phenotype changes.  It does not involve alterations in the DNA…

Q: Define the following terms:a. positive supercoilingb. negative supercoilingc. polyaminesd.…

A: Introduction DNA (Deoxyribonucleic acid) is a hereditary material that contains all of the genetic…

Q: How many copies of the H2B histone would be found in chromatin containing 50 nucleosomes? a. 5 b. 10…

A: The defined length of DNA is attached to a collection of histones called octamer. The total unit is…

Q: Which of the following is a type of chromatin remodeling? the changing of amino acid sequence of…

A: The DNA double helix is firmly wrapped around nuclear proteins called histones in the cell nucleus.…

Q: Which of the following statements about nucleosomes is NOT true? DNA is on the outside and is…

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

Q: When somatic cells undergo mitosis, what is the result? O 1. Daughter cells with different genetic…

A: "Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: What is the name of proteins that relax supercoiled state of a DNA molecule are called? Polymerase…

A: During the process of transcription and DNA replication overwinding of the DNA duplex would lead to…

Q: The nuclear matrix composition: a. lamina, nucleosome b. cortex, lamina, c. nucleosome d. lamina,…

A: The nuclear matrix is described as a type of structure that majorly comprises non-histone proteins.…

Q: When histone tails are tightly associated with the DNA, genes become

A: Histone tails  : Histone tails are most common sites of post translational modification.  These…

Q: Answer the following four questions about DNA and chromosomes. (Hint: there may be slightly…

A: Deoxyribonucleic acid (DNA) It is one of the genetic material which have two polynucleotide chains.…

Q: Many proteins other than histones are found associated with chromosomes. What roles do these…

A: Histones are a family of basic proteins, which associate with deoxyribonucleic acid (DNA) in the…

Q: Chromatin condenses. Name: Homologs aligned by synapsis and chromosomes are compact. Name:

A: Mitosis and meiosis are the type of cell divisions which are required for growth and cell division.…

Q: dency of tra Which of the following would you expect to find in a region of euchromatin? DA. more…

A: Euchromatin is a lightly packed form of chromatin or DNA. As it is accessible to may transcriptional…

Q: When DNA is copied, an identical strand of DNA forms and is called a A. sex chromosome B. histone C.…

A: In nucleus of a cell – DNA is present in form of chromosomes. These are compact structure of DNA…

Q: Why is it important for DNA to be duplicated before mitosis

A: All the cells undergo differentiation and regeneration in order to grow and develop into tissues…

Q: DNA plus associated proteins equal?  a. chromatin b. chromosome c. chromatid d. nucleosome

A: Introduction :- Proteins are big, complex molecules that play a number of important tasks in the…

Q: Which of the following statements concerning eukaryotic chromatin is true.     Histones have an…

A: Eukaryotic chromatin is made up of protein and DNA . It consists of beads referred to as nucleosome.…

Q: Put the following levels of chromosome organization in order from least complex (least packaged…

A: The word chromosome arises from the Greek word chroma means color and soma which means body because…

Q: Decondensed chromatin, but not condensed chromatin O can be remodeled. is associated with…

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

Q: Histones are proteins that act as scaffolding for DNA. They contain a large amount of lysine and…

A: A histone is a protein that gives chromosomes structural support. Very long DNA molecules wrap…

Q: -Centrosome Cell DNA Telomere- Thymine - Cytosine - Place the number that represents the base, cell…

A: The given image is of packaging of DNA. It is asked to put the number that represents the base, cell…

Q: A nucleosome consists of (a) DNA and scaffolding proteins (b) scaffolding proteins and histones (c)…

A: A nucleosome is defined as a 3D structure composed of approximately two turns of DNA wrapped…

Q: Arrange the levels of chromatin packing from most "open" to most condensed (chromosome, loops,…

A: Chromatin is a complex combination of DNA and proteins that makes up the chromosomes within the…

Q: DNA structure from least to most condensed. Chromatin Chromatid Nucleosome

A: Condensation of the DNA is required to pack up the genetic material so as to pack the huge amount of…

Q: How many chromosomes are there in each stage of mitosis in onion and in animal like Drosophila

A: Mitosis is the equational division.

Q: Phases of the cell cycle (Mitosis)                 Interphase DNA, in the form of chromatin,…

A: The orderly sequence of events by which cell duplicates its DNA, synthesizes its other components…

Q: The DNA and associated proteins of a eukaryotic chromosome are called Chromatin Chromatosome…

A: Eukaryotic chromosomes are made up of DNA that is tightly coiled around histone protein clusters.…

Q: The histone proteins help package DNA into ___________;the nonhistone proteins function in…

A: in eukaryotes, each chromosome is a linear DNA molecule. having these molecules packed into a tiny…

Q: Autosomes represent None of these are true of autosomes those chromosomes found only in somatic (non…

A: Answer. Most animals and many plants show sexual dimorphism; in other words, an individual can be…

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: