the dense, highly stainable part of a chromosome.
- Compare euchromatin.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use heterochromatin in a sentence
Large portions of the DNA in the nucleus are classified as heterochromatin because they are more compact and generally not expressed as proteins.A Newfound Source of Cellular Order in the Chemistry of Life | Viviane Callier | January 7, 2021 | Quanta Magazine
These droplets can fuse with each other, possibly providing a mechanism for compacting heterochromatin inside the nucleus.A Newfound Source of Cellular Order in the Chemistry of Life | Viviane Callier | January 7, 2021 | Quanta Magazine
Collectively those inactive, tightly guarded parts of the genome are known as heterochromatin.In a first, a person’s immune system fought HIV — and won | Tina Hesman Saey | August 26, 2020 | Science News
British Dictionary definitions for heterochromatin
the condensed part of a chromosome that stains strongly with basic dyes in nondividing cells and has little genetic activity: Compare euchromatin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012