<prompt> All of the following are good prognostic factors for childhood ALL except-Female sexHyperdiploidyt12:21 translocationPre B cell ALL  <response>: Favorable prognostic marker for ALL includes Age between 2 and 10 years A low white cell cout Hyperdiploidy Trisomy of chromosomes 4,7,10 Presence of a t 12;21 seen in pre B cell ALL Reference : Robbins and Cotran Pathologic basis of disease.South Asia Edition volume 1.page no. 592 