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Why before mitosis this DNA becomes tightly coiled and chromosome condense into?
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What structure will the chromatin become in mitosis?
The chromatin in the cell becomes chromosomes in prophase, the first stage of mitosis. The chromatin coils tightly together to form into separate chromosome strands during this phase.
Why is it necessary for chromatin to condense into tightly packed chromosomes?
DNA does not condense into chromosomes. When cells divide so do chromosomes. Each chromosome provides the template for a new chromosome. The four bases match those on the old chromosomes and create new chromosomes. DNA does not just decide to get together, "Hey guys, lets get together and become a chromosome." ACTUALLY they do condense into chromosomes because it would be too big (if uncoiled and stretched out) to fit into a cell
Are chromosome more condense than chromatin?
Yes, you can think of chromosomes tightly wound up DNA and chromatin as unwound DNA.
If a mutation made histone proteins bind less tightly to DNA how might the cell cycle be affected?
So if the histones are not properly binding to the DNA then the DNA will not be able to condense into chromosomes, which it needs to do for mitosis to occur. So basically, mitosis will not occur.
Is the chromosome of a bacterium wrapped around proteins?
In order to fit within a cell, DNA becomes more compact by wrapping tightly around associated proteins. Chromatids are duplicate halves of a chromosome.
What structure will the chromatin become in mitosis?
The chromatin in the cell becomes chromosomes in prophase, the first stage of mitosis. The chromatin coils tightly together to form into separate chromosome strands during this phase.
Why is it necessary for chromatin to condense into tightly packed chromosomes?
DNA does not condense into chromosomes. When cells divide so do chromosomes. Each chromosome provides the template for a new chromosome. The four bases match those on the old chromosomes and create new chromosomes. DNA does not just decide to get together, "Hey guys, lets get together and become a chromosome." ACTUALLY they do condense into chromosomes because it would be too big (if uncoiled and stretched out) to fit into a cell
Are chromosome more condense than chromatin?
Yes, you can think of chromosomes tightly wound up DNA and chromatin as unwound DNA.
What happens to the nucleosomes during mitosis?
During mitosis, the fibers of each individual chromosome are drawn together forming the tightly packed nucleosomes. The tight packing of nucleosomes may help separate chromosomes during mitosis.
Chromosomes first become visible during which phase of mitosis?
Chromosomes first become visible during prophase of mitosis when they condense and coil up tightly. This allows them to be easily seen under a microscope as separate structures.
If a mutation made histone proteins bind less tightly to DNA how might the cell cycle be affected?
So if the histones are not properly binding to the DNA then the DNA will not be able to condense into chromosomes, which it needs to do for mitosis to occur. So basically, mitosis will not occur.
What is chromosome and what does it do?
A chromosome is a mix of tightly packed DNA and proteins.
Is the chromosome of a bacterium wrapped around proteins?
In order to fit within a cell, DNA becomes more compact by wrapping tightly around associated proteins. Chromatids are duplicate halves of a chromosome.
What nucleus acid is called that makes up a chromosome?
The nucleic acid chains usually sit around uncoiled as loose strands. When it is time for the cell to reproduce, they condense and wrap up very tightly. The tightly wound DNA is called a chromosome. Chromosomes look kind of like long, limp hot dogs. They are also found in pairs.
What are functions of chromosome?
A chromosome is very tightly packed DNA. DNA stores the information that is used to synthesize proteins. Thus the entire makeup and organization of an organism relies on the information stored in the chromosomes. DNA becomes wrapped around proteins known as histones. 8 histones form a structure known as a nucleosome. Multiple nucleosomes condense together with the addition of another histone, H1 to form a 30 nanometer fiber. Scaffolding proteins further pack the 30 nanometer fiber into a chromosome.
When is DNA not tightly coiled into a chromosome?
S phase of Interphase
How can you tell whether a chromosome has doubled?
You can tell a chromosome has doubled because of the DNA's strands. They coil very tightly.
