Chromatin exists in two structures. One structure, called euchromatin, is less consolidated and can be translated. The subsequent structure, called heterochromatin, is exceptionally dense and is ordinarily not transcribed. Under the magnifying lens in its all-encompassing structure, chromatin looks like dots on a string. The globules are called nucleosomes. Each nucleosome is made out of DNA folded over eight proteins called histones. The nucleosomes are then wrapped into a 30 nm winding called a solenoid, where extra histone proteins bolster the chromatin structure. During cell division, the structure of the chromatin and chromosomes are obvious under a light magnifying instrument, and they change fit as a fiddle as the DNA is copied and isolated into two cells.



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