<prompt> Gene for Wilms tumor is located on-Chromosome 11Chromosome 1Chromosome10Chromosome12  <response>: Mutations of the WT1 gene on chromosome 11p13 are observed in approximately 20 of Wilms tumors.At least half of the Wilms tumors with mutations in WT1 also carry mutations in CTNNB1, the gene encoding the proto-oncogene beta-catenin. 