Hereditary retinoblastoma is an autosomal dominant hereditary cancer. cells from retinal tumors in a child who has this disease . evidence of non-disjunction in all autosomes. b. one non-functional copy of the retinoblastoma gene. c. two non-functional copies of the retinoblastoma gene. d. trisomy for the retinblastoma gene. e. a dominant mutation in the retinoblastoma gene.