The above findings of BCR-ABL rearrangement in our study is similar to those reported by Iqbal et al.8 Their data on Pakistani population with Ph+CML showed the frequency of b3a2 and b2a2 to be 63.33% and 36.66% respectively. The gene discussed is ABL1; the disease is chronic myelogenous leukemia, BCR-ABL1 positive.