chromatin(redirected from Chromatin structure)
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Related to Chromatin structure: nucleosome
A complex of nucleic acids and proteins, primarily histones, in the cell nucleus that stains readily with basic dyes and condenses to form chromosomes during cell division.
chro•ma•tin(ˈkroʊ mə tɪn)
the readily stainable substance of a cell nucleus that consists of DNA, RNA, and various proteins, and forms chromosomes during cell division.
[< German (1880) < Greek chrōmat-, s. of chrôma color + German -in -in1]
The substance distributed in the nucleus of a cell that condenses to form chromosomes during cell division. It consists mainly of DNA and proteins called histones.
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|Noun||1.||chromatin - the readily stainable substance of a cell nucleus consisting of DNA and RNA and various proteins; during mitotic division it condenses into chromosomes|
body substance - the substance of the body
cell nucleus, karyon, nucleus - a part of the cell containing DNA and RNA and responsible for growth and reproduction
sex chromatin - chromatin found only in female cells; "the presence or absence of sex chromatin in cells obtained by amniocentesis makes it possible to determine the sex of a fetus"
chromosome - a threadlike strand of DNA in the cell nucleus that carries the genes in a linear order; "humans have 22 chromosome pairs plus two sex chromosomes"