euchromatin Cytology.
(juːˈkrəʊmətɪn)
[a. G. euchromatin (E. Heitz 1928, in Jahrb. f. wissenschaftliche Botanik LXIX. 764), f. eu- + chromatin.]
Euchromatic chromosome material.
| 1932 Biol. Abstr. VI. 347/1 Chromosomes are composed of sections of heterochromatin and of euchromatin attached end to end. 1942 Nature 17 Jan. 67/1 In the euchromatin the regions between the chromomeres contain globulin-type proteins. 1951 [see heterochromatin]. 1960 Darlington & La Cour Handling of Chromosomes (ed. 3) 67 Heterochromatin is a part of the chromosome which is out of step with the major bulk of the euchromatin. 1961 Lancet 26 Aug. 463/1 The synthesis of desoxyribose nucleic acid in heterochromatin and in euchromatin. |