Which of the following chromosomal alteration causes retinoblastoma?

Which of the following chromosomal alteration causes retinoblastoma?

Q. Which of the following chromosomal alteration causes retinoblastoma?

A.            Deletion in chromosome 11

B.            Translocation between chromosome 9 and 22

C.            Deletion in chromosome 13

D.            Translocation between chromosome 8 and 21

Answer: Deletion in chromosome 13

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