to examine the cause of baseline sces more broadly , the frequencies of sces , as well as chromosomal aberrations ( cas ) in 4 additional bs fibroblast strains were compared , under different assay and cell culture conditions , with those of normal cells in the range of approximately 0.9-90 % 5-bromodeoxyuridine ( brdurd ) substitution into template dna .
C0016030
fibroblast
C0007634
normal cells