We classified Mef−/−Rad50s/s tumor-bearing mice into two groups basedon Myc mRNA levels, and examined their survival: we found no differencesin the survival between the high Myc group (Myc expression 2 xgreater than wild type plasma cells) and the low Myc group (where Myc expressionwas less than 2 x the wild type plasma cells). This evidence concerns the gene MYC and neoplasm.