Ophthalmology Diseases of orbit, Lids and lacrimal apparatus 66912295 Hereditary retinoblastoma develop from the following chromosomal deletions A 13q 14 B 13 p 14 C 14 p 13 D 14 q 13 High-Yield Explanation Most commonly retinoblastoma sporadic. Most common mode of inheritance is heriditaery retinoblastoma is autosomal dominant