It's called euchromatin, and is attached to histones.
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Chromatin Chromatin
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Euchromatin.
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Euchromatin is a lightly packed form of chromatin which is the
molecular substance of a chromosome. It is often but not always
actively transcribing which means the information in a strand of
DNA is copied into a new molecule of RNA.
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Euchromatin is loosely coiled DNA that is transcriptionally
active. An increased amount of euchromatin indicates an active
cell. Heterochromatin is tightly packed DNA that is
transcriptionally innactive.