<prompt> Retinoblastoma gene is located on:Chromosome 5Chromosome 8Chromosome 13Chromosome 16  <response>: c. Chromosome 13Ref: Nelsons 20e p 2476-2478, Ghai 8e 614-615Retinoblastoma RB geneIt is located on chr 13q14; its mutation or deletion is responsible for hereditary form of RetinoblastomaIt encodes the retinoblastoma protein, a tumor suppressor protein that controls cell-cycle phase transition and has roles in apoptosis and cell differentiation 