what is an euchromatin
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chromatin Chromatin is a complex of DNA and proteins that forms chromosomes within the nucleus of eukaryotic cells. Nuclear DNA does not appear in free linear strands; it is highly condensed and wrapped around nuclear proteins in order to fit inside the nucleus. Chromatin exists in two forms. One form, called euchromatin, is less condensed and can be transcribed. The second form, called heterochromatin, is highly condensed and is typically not transcribed. Under the microscope in its extended form, chromatin looks like beads on a string. The beads are called nucleosomes.
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Cell Structure and Function (Chapter 4) chromatin. The complex of DNA and proteins that makes up a eukaryotic chromosome. When the cell is not dividing, chromatin exists as a mass of very long, thin fibers that are not visible with a light microscope. When the cell IS preparing to divide, the DNA is copied and the fibers coil up and CAN be seen with a LM.
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- chromosomes are made up of a dna protein complex called chromatin that is organized into subunits called nucleosomes the way in which eukaryotes compact and arrange their chromatin not only allows a large amount of dna to fit in a small space but it also helps regulate gene expressionebookshromosomes are made up of a dna protein complex called chromatin that is organized into subunits called nucleosomes the way in which eukaryotes compact and arrange their chromatin not only allows a large amount of dna to fit in a small space but it also helps regulate gene expression ebooks
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Medical Definition of Heterochromatin Medical Definition of Heterochromatin. Heterochromatin: A genetically inactive part of the genome. Heterochromatin was so named because its chromosomal material (chromatin) stains more darkly throughout the cell cycle than most chromosomal material (euchromatin). There are two types of heterochromatin: constituitive heterochromatin and facultative heterochromatin.
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- Chromatin is a mixture of DNA and proteins and because plants and animals both have DNA, it's found in BOTH plant and animal cells. It's found in the center of the cell insi … de of the cell's nucleus.A small amount is also found inside of the mitochondria throughout the cell in it's cytoplasm. 18 people found this useful.hey are responsible for the production and storage of nutrients. They are located in the stem, roots, and fruit of … the plant and store starch. They rarely divide but retain the ability in the case that the plant is damaged.
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- Definition of CHROMATIN. : a complex of nucleic acid and basic proteins (as histone) in eukaryotic cells that is usually dispersed in the interphase nucleus and condensed into chromosomes in mitosis and meiosis — see cell illustration — compare euchromatin, heterochromatin. — chro·ma·tin·ic \ˌkrō-mə-ˈti-nik\ adjective.
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How does prokaryotic chromatin differ from eukaryotic chromatin? The genetic material, DNA, is naked in prokaryotes. it is not complexed with any packaging protein. Chromatin is strictly used for eukaryotic DNA, which is complexed with hi … stone proteins.
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- facultative heterochromatin the chromatin in regions of the chromosomes that become heterochromatic in certain cells and tissues; for example, it makes up the inactive X chromosome in female somatic cells. (het'ĕr-ō-krō'mă-tin),
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MADMAN BIOLOGY The complex of DNA and proteins that makes up eukaryotic chromosomes. When the cell is not dividing, chromatin exists in its dispersed form, as a mass of very long, thin fibers that are not visible with a light microscope. chromosome A cellular structure carrying genetic material, found in the nucleus of eukaryotic cells. Each chromosome consists of one very long DNA molecule and associated proteins. (A bacterial chromosome usually consists of a single circular DNA molecule and associated proteins. It is found in the nucleoid region, which is not membrane bounded.)
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Chromatin Chromatin-The complex of DNA, proteins and some RNA that makes up eukaryotic chromosomes. Chromosomes-Structures in the cell nucleus, composed of chromatin and containing the genes. The chromosomes become visible with the microscope as distinct structures when the cell divides.
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- Eukaryotic chromosomes contain both DNA and protein tightly packed together to form Chromatin. Chromatin consists of DNA tightly coiled around histones. DNA and histone molecu … les form nucleosomes. These are all part of the structure of chromosomes. Cell Biology: The Translation and Use of Protein Most people know to some extent that DNA is the foundation for life. 2  It is the code at the heart of everything that happens in an organism. 3  However, not many people know how ….
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Oxyphil cell (pathology) Chromaffin cell. Chromaffin cells, also pheochromocytes, are neuroendocrine cells found mostly in the medulla of the adrenal glands (located above the kidneys) in mammals.
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Biology Exams 4 U Chromosomes are highly condensed chromatin visible during metaphase. In eukaryotes, there are two setas of chromosmes, one inherited from father and other from mother. Each chromosome in one set has a corresponding pair in other set, forming a homologous pair.
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Centromere: Definition & Structure Definition. In eukaryotes, a centromere is a region of DNA that is responsible for the movement of the replicated chromosomes into the two daughter cells during mitosis and meiosis. There is one centromere on each chromosome, and centromeres are responsible for two major functions.n eukaryotes, a centromere is a region of DNA that is responsible for the movement of the replicated chromosomes into the two daughter cells during mitosis and meiosis.
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Centromere: Definition & Structure In eukaryotes, a centromere is a region of DNA that is responsible for the movement of the replicated chromosomes into the two daughter cells during mitosis and meiosis.n eukaryotes, a centromere is a region of DNA that is responsible for the movement of the replicated chromosomes into the two daughter cells during mitosis and meiosis.
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Chromatin structure and function: a guide Heterochromatin is a tightly packed form of chromatin which can silence gene transcription. Heterochromatin constitutes telomeres, pericentric regions and areas rich in repetitive sequences. Euchromatin is instead less condensed and it contains most actively transcribed genes.
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- Chromatin are long, uncoiled strands of DNA. Chromatin contain the  genetic information of the cell. Cytoplasm is the clear fluid or  gel that surrounds the organelles outsi … de the nucleus. Answered.
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- Eukaryotes accomplish this feat by wrapping their DNA around special proteins called histones, thereby compacting it enough to fit inside the nucleus (Figure 8). Together, eukaryotic DNA and the histone proteins that hold it together in a coiled form is called chromatin.
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10 Signs and Symptoms of Plantar Fasciitis Some individuals are more likely to develop plantar fasciitis than others and influencing factors can be genetic, structural, age-related, health-related, or as a result of lifestyle. Generally, plantar fasciitis is more common in middle-aged and older adults although it can occur in younger people as well.
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Centromere and Chromosome Segregation The DNA in the centromere region of a chromosome is composed of tightly packed chromatin known as heterochromatin. Heterochromatin is very condensed and is therefore not transcribed. Due to its heterochromatin composition, the centromere region stains more darkly with dyes than the other regions of a chromosome.
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Cell Nucleus Since it is less condensed, euchromatin is the biologically active part of the DNA, that is, the region that contains active genes to transcribe into RNA. Heterochromatin makes up the inactive portions of the DNA molecule.he mains elements of the nucleus are chromatin (made of DNA molecules), the nucleolus, the karyolymph, or nucleoplasm, and the nuclear membrane (or karyotheca).
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Chromatin The primary functions of chromatin are 1) to package DNA into a smaller volume to fit in the cell, 2) to reinforce the DNA macromolecule to allow mitosis, 3) to prevent DNA damage, and 4) to control gene expression and DNA replication. The DNA + histone = chromatin definition: The DNA double helix in the cell nucleus is packaged by special proteins termed histones. 2  The formed protein/DNA complex is called chromatin. 3  The basic structural unit of chromatin is the nucleosome.
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Eukaryote Eukaryote A eukaryote is an organism with a complex cell or cells, in which the genetic material is organized into a membrane-bound nucleus or nuclei. Eukaryotes (also spelled eucaryotes) comprise animals, plants, and fungi—which are mostly multicellular - as well as various other groups that are collectively classified as protists (many of which are unicellular).
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Chromosomes Eukaryotic chromosomes consist of repeated units of chromatin called nucleosomes, which were discovered by chemically digesting cellular nuclei and stripping away as much of the outer protein packaging from the DNA as possible.
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Chromatin The primary protein components of chromatin are histones that compact the DNA. Chromatin is only found in eukaryotic cells (cells with defined nuclei). Prokaryotic cells have a different organization of their DNA (the prokaryotic chromosome equivalent is called genophore and is localized within the nucleoid region).The structure of chromatin depends on several factors. The DNA + histone = chromatin definition: The DNA double helix in the cell nucleus is packaged by special proteins termed histones. 2  The formed protein/DNA complex is called chromatin. 3  The basic structural unit of chromatin is the nucleosome.
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What Is the Function of Chromatin? There are two basic types of chromatin, the euchromatin and the heterochromatin. The euchromatin is involved in the transcription of RNA, which helps produce proteins for the production of energy. These chromatins are more diffused than other types.