Ophthalmology All of them are true about retinoblastoma except A Rb1 gene is located on 11q14 B The commonest cause of intraocular calcification C Trilateral retinoblastoma is a combination of bilateral retinoblastoma with pinealoblastoma D The commonest tumour of the eye in children 💡 Explanation All of them are true about retinoblastoma except ✓ Correct Answer: A. Rb1 gene is located on 11q14