the three-way differentiation of sister chromatids ( 3-way scd ) in m3 endoreduplicated chromosomes in a bloom syndrome ( bs ) b-lymphoid cell line , suggested that in addition to exchanges between sister chromatids ( intra-exchanges ) , non-sister chromatid exchanges ( inter-exchanges ) also occur , especially in bs high sce cells .
C1519334
sister chromatids
C0007634
cells