Health / Medical Topics |
Chromatin
Definition 1
The genetic material of the nucleus, consisting of deoxyribonucleoprotein, which occurs in two forms during the phase between mitotic divisions: 1) as heterochromatin, seen as condensed, readily stainable clumps; 2) as euchromatin, dispersed lightly staining or nonstaining material. During mitotic division the chromatin condenses into chromosomes. (NCI Thesaurus)
Definition 2
complex of nucleic acids (RNA and DNA) and proteins comprising eukaryotic chromosomes. (NIH CRISP Thesaurus)
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