heterochromatinization

heterochromatinization

[-krō′mətīnəzā′shən]
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).