euchromatin [yoo-kroh-muh-tin] Word Origin noun Genetics.

  1. the part of a chromosome that condenses maximally during metaphase and contains most of the genetically active material.

Origin of euchromatin First recorded in 1930–35; eu- + chromatin Related formseu·chro·mat·ic [yoo-kruh-mat-ik] /ˌyu krəˈmæt ɪk/, adjective British Dictionary definitions for euchromatin euchromatin noun

  1. the part of a chromosome that constitutes the major genes and does not stain strongly with basic dyes when the cell is not dividingCompare heterochromatin

Derived Formseuchromatic (ˌjuːkrəʊˈmætɪk), adjective euchromatin in Medicine euchromatin [yōō-krō′mə-tĭn] n.

  1. Chromosomal material that consists of uncoiled dispersed threads during interphase, is genetically active, and stains lightly with basic dyes.

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