Changes in Incidence of Sex Chromatin in Subcultured Cells

Abstract

Sex chromatin counts of subcultured cells of both female human mammary tumor and female rabbit kidney show a considerable drop from an initial high level. Cultures in which sex chromatin persists also retain the viral insensitivity of their source material.

Sex Chromatin in Rodents

“…Sex chromatinpositive results were also obtained in certain embryonic, adult and cultured cells of various rodents bv Hopltins and Whidden (i959), Forsberg andLindh (1960), Feiner (1960), G b i n a (1960), Hay (1960), Ohno et nl. (1959, 1961, Orsi et al (1961), ICang it nl. (1962), Bianchi and Bianchi (1963), Sellyei et al (1961), Allelander (1965, Allison et al (1965) and Kenney et it/.…”