euchromatic, a. Cytology.
(juːkrəʊˈmætɪk)
[f. next + -ic.]
Of chromosome material: staining normally throughout the nuclear cycle.
| 1936 Biol. Abstr. X. 1620/2 Chromosome I (X) is heterochromatic from the proximal end to almost the exact centre; from here to the distal end euchromatic. 1942, 1951 [see heterochromatic a. 2]. 1968 H. Harris Nucleus & Cytoplasm iv. 75 It is probable that other highly condensed heterochromatic or heteropyknotic regions in interphase nuclei also synthesize very much less RNA than the euchromatic regions. |