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What basic protein forms the unit around which DNA is coiled in the nucleosomes of eukaryotic chromosomes?
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∙ 14y ago
Histones and other associated proteins
Wiki User
∙ 14y ago
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In eukaryotic chromosomes DNA is tightly coiled around proteins called?
The "beads on a string" are called nucleosomes.
A structure found in the nucleus that is made of DNA?
Chromosomes - structures composed of DNA and proteins found in the nucleus of eukaryotic cells. Chromosomes carry the genetic material. Chromosomes - structures composed of DNA and proteins found in the nucleus of eukaryotic cells. Chromosomes carry the genetic material.
What is the fundamental repeating unit of organization in a eukaryotic chromosome?
The nucleosome is the basic unit that organizes the structure of an eukaryotic chromosome. The nucleosome is DNA wrapped around histone proteins which allows the DNA to condense into chromosomes.
What protein does DNA wrap around?
Histones are the major proteins involved in coiling DNA.
Explain how histones influence folding in eukaryotic DNA?
Histones bind to DNA at specific sites and make DNA coil around them to form nucleosomes. It results in the formation of 10 nm fibre which further coils to form a a solenoid of 30 nm thickness. This coiling is prolonged during mitosis and fiber gets thickened and shortened to form chromosomes.
In eukaryotic chromosomes DNA is tightly coiled around proteins called?
The "beads on a string" are called nucleosomes.
What eukaryotic chromosomes contain both DNA and protein tightly packed together to for a substance?
Eukaryotic chromosomes contain both DNA and protein tightly packed together to form Chromatin. Chromatin consists of DNA tightly coiled around histones. DNA and histone molecules form nucleosomes. These are all part of the structure of chromosomes.
Do chromosomes include DNA molecules histones and nuclosomes?
Yes. Chromosomes are DNA that have been wound around histones to form nucleosomes. The nucleosomes that have condensed are what forms the complete chromosomes.
A structure found in the nucleus that is made of DNA?
Chromosomes - structures composed of DNA and proteins found in the nucleus of eukaryotic cells. Chromosomes carry the genetic material. Chromosomes - structures composed of DNA and proteins found in the nucleus of eukaryotic cells. Chromosomes carry the genetic material.
What is the fundamental repeating unit of organization in a eukaryotic chromosome?
The nucleosome is the basic unit that organizes the structure of an eukaryotic chromosome. The nucleosome is DNA wrapped around histone proteins which allows the DNA to condense into chromosomes.
What protein does DNA wrap around?
Histones are the major proteins involved in coiling DNA.
DNA is wrapped around a special protein?
DNA is wrapped around histone proteins. They are called nucleosomes and resemble "beads on a string" when viewed closely.
What must DNA do Before chromosomes can form?
DNA wraps around protein before chromosomes can form.
How do chromosomes turn into DNA?
Replication chemicals trigger during cell replication trigger DNA to wrap tightly around histone octamers (histone proteins) to create nucleosomes, for DNA synthesis. This happens during the prophase stage of cell replication.
Explain how histones influence folding in eukaryotic DNA?
Histones bind to DNA at specific sites and make DNA coil around them to form nucleosomes. It results in the formation of 10 nm fibre which further coils to form a a solenoid of 30 nm thickness. This coiling is prolonged during mitosis and fiber gets thickened and shortened to form chromosomes.
How is DNA condensed into a nucleus?
Protein involved in DNA condensation. In most eukaryotes, the chromosomal packing involves the wrapping of DNA around a core of histones to form nucleosomes. Adjacent nucleosomes are packaged together via Histone 1 and nucleosomes are organized into a 30 nm chromatin fiber. DNA condensation takes place as cells enter mitosis or when germ cells enter meiosis.
What organic substance is a nucleosome composed of?
Nucleosomes are the basic repeating units of chromatin which is a combination of DNA and proteins that make up the content's of a cell's nucleus. Nucleosomes are made of a histone octamer which is comprised of two of the following histones: H2A, H2B, H3, and H4. The histone octamer is bound and wrapped around approximately 146 base pairs of DNA and an additional H1 histone is added and is wrapped around 20 more base pairs.
