Define chromatin. chromatin synonyms, chromatin pronunciation, chromatin translation, English dictionary definition of chromatin. n. A complex of nucleic acids and proteins, primarily histones, in the cell nucleus that stains readily with basic dyes and
Biology definition: Chromatin is a substance made up of DNA or RNA and proteins, such as histones. It condenses during cell division (mitosis or meiosis) and becomes a chromosome. Chromatins are“unwound” condensed structures whereas chromosomes are highly packaged and more condensed than chroma...
Chromatin definition: the readily stainable substance of a cell nucleus, consisting of DNA, RNA, and various proteins, that forms chromosomes during cell division.. See examples of CHROMATIN used in a sentence.
Also found in: Dictionary, Thesaurus, Medical, Legal, Wikipedia. Related to Sex Chromatin: Barr bodysex chromatin[′seks ′krō·mə·tən] (cell and molecular biology) Barr body McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill ...
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Cells are the basic functional units of life. The major component in a cell is the genetic material, commonly referred to collectively as the DNA. It contains hereditary information that is passed on from parent to offspring during cell division. The DNA is well organized in eukaryotes and is...
(Biology) the condensed part of a chromosome that stains strongly with basic dyes in nondividing cells and has little genetic activity. Compareeuchromatin Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007...
AI generated definition based on:Brenner's Encyclopedia of Genetics (Second Edition),2013 About this page Add to MendeleySet alert Also in subject areas: Biochemistry, Genetics and Molecular Biology Immunology and Microbiology Medicine and Dentistry ...
In addition to DNA, chromatin complexes can also encompass RNA molecules, introducing another layer of complexity to chromatin architecture1,2,23. Chromatin-associated RNA has been shown to contribute to the regulation of gene expression1,24,25. For instance, the accumulation of XIST long non-codi...
The classic definition of heterochromatin originated from staining mitotic chromosomes74 and later came to be associated with histone modifications75. We now have a more nuanced understanding of the molecular details, including several types of repressive histone modifications and associated proteins and the...