An average of 10.4 subpopulations/patient (minimum: 0, maximum: 33 and median: 10) were observed in common ALL BCR/ABL+ patients, while an average of 20.6 subpopulations/patient (minimum: 2, maximum: 67 and median: 14) were observed in common ALL BCR/ABL− patients, which significantly surpassed the numbers of the new subpopulations in the common ALL BCR/ABL+ patients (P < 0.05). This evidence concerns the gene BCR and acute lymphoblastic leukemia.