Heterochromatinization | definition of heterochromatinization by Medical dictionary
the transformation of genetically active euchromatin into genetically inactive heterochromatin. It occurs during the inactivation of one of the X chromosomes in the mammalian female during the early stages of embryogenesis. See also Lyon hypothesis
References in periodicals archive
In one species, Schizocosa malitiosa, only one X chromosome was notable in that it exhibited complete heterochromatinization
(Brum-Zorrilla & Cazenave 1974; Brum-Zorrilla & Postiglioni 1980; Rowell 1985; Datta & Chatterjee 1988; Rowell 1991b).
1959), by gradual heterochromatinization
and erosion of the Y sex chromosome.