<prompt> Amplification of N-Myc is associated with which a tumor?NeuroblastomaRetinoblastomaOsteosarcomaNeuroma  <response>: Amplification of N-Myc is associated with a variety of tumors, most notably neuroblastomas.This gene is a member of the MYC family of transcription factors and encodes a protein with a basic helix-loop-helix bHLH domain. This protein is located in the nucleus and must dimerize with another bHLH protein in order to bind DNA. 