Chromatin is a complex of macromolecules composed of DNA, RNA, and protein, which is found inside the nucleus of eukaryotic cells.
What is a chromatin structure?
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.
What region is chromatin in?
In the eukaryotic genome, DNA associates with proteins to form densely packed chromatin, a highly coiled and compact structure. The two types of chromatin, heterochromatin and euchromatin, are functionally and structurally distinct regions of the genome.
What is the difference between DNA and chromatin?
The DNA is packaged by special proteins called histones to form chromatin. The chromatin further condenses to form chromosomes.
|Difference between Chromosomes and Chromatin|
|Composed of nucleosomes||They are condensed chromatin fibers|
Why chromatin is found only in eukaryotes?
Interestingly, chromatin not only serves as a way to condense DNA within the cellular nucleus, but also as a way to control how that DNA is used. In particular, within eukaryotes, specific genes are not expressed unless they can be accessed by RNA polymerase and proteins known as transcription factors.
Is chromatin easy to read and copy?
After an m-RNA message is transcribed from the DNA it is edited.
BEADLIKE STRUCTURE FORMED WHEN DNA WRAPS AROUND HISTONES.
|In dividing? OR non-dividing cells?||IN NON-DIVIDING CELLS||IN DIVIDING CELLS|
|Easy to read & copy? OR Easy to move?||EASY TO READ & COPY||EASY TO MOVE|