The cell cycle and chromosome anomalies.
D002455:Cell Division; D002460:Cell Line; D002478:Cells, Cultured; D002869:Chromosome Aberrations / Q000503:physiopathology*; D025063:Chromosome Disorders; D002902:Chromosomes, Human, 16-18; D002903:Chromosomes, Human, 19-20; D005347:Fibroblasts / Q000502:physiology; D006801:Humans; D066298:In Vitro Techniques; D013997:Time Factors; D014314:Trisomy