to determine a concentration of 5-bromo-2-deoxyuridine ( brdu ) sufficient for sister chromatid differentiation ( scd ) , and yet having a minimal effect on the number of sister chromatid exchanges ( sces ) , we assessed the effect produced on the number of sces by low concentrations ( 1 , 3 , and 10 micrograms/ml ) of brdu .
C1519334
sister chromatid
C0037211
sces