Definition of chromatin
: a complex chiefly of DNA and histone in eukaryotic cells that is usually dispersed in the interphase nucleus and condensed into chromosomes in mitosis and meiosis and in which the nucleosome makes up its repeating subunits In eukaryotes, the DNA interacts with the histone proteins to form a tightly packed superstructure known as chromatin. — Isao Tanaka et al. — see cell illustration — compare euchromatin, heterochromatin, nucleosome
chromatinicplay \ˌkrō-mə-ˈti-nik\ adjective
Recent Examples of chromatin from the Web
Between those boundary points, those clusters of insulating proteins, the chromatin strand can loop up and over like the ribbon in a birthday bow, allowing genetic elements distributed along the ribbon to touch and interact with one another.
This raises another question: what determines the chromatin code?
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'chromatin'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of chromatin
Medical Definition of chromatin
: a complex of a nucleic acid with basic proteins (as histone) in eukaryotic cells that is usually dispersed in the interphase nucleus and condensed into chromosomes in mitosis and meiosis
Learn More about chromatin
Britannica.com: Encyclopedia article about chromatin
Seen and Heard
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