title: POLYPLOIDY INDUCED BY X-RAYS IN CHINESE HAMSTER CELLS IN VITRO.
abstract: The incidence of polyploidy (specifically, in this case, the doubling of the stemline chromosome number) induced by x-rays in cells cultured in vitro is about the same for both "near-diploid" and "near-tetraploid" sublines of the Chinese hamster. Endoreduplication is a principal cytological mechanism for this form of induced polyploidy.
mesh_terms: D000818:Animals; D002455:Cell Division; D002869:Chromosome Aberrations; D002875:Chromosomes; D003078:Colchicine; D006224:Cricetinae; D003412:Cricetulus; D004171:Diploidy; D066298:In Vitro Techniques; D010600:Pharmacology; D011123:Polyploidy; D011831:Radiation Genetics; D012106:Research; D046509:Tissue Culture Techniques; D014965:X-Rays
chemical_list: D003078:Colchicine
keywords: CELL DIVISION; CHROMOSOME ABNORMALITIES; COLCHICINE; EXPERIMENTAL LAB STUDY; HAMSTERS; PHARMACOLOGY; RADIATION GENETICS; TISSUE CULTURE