📘 This question is in theme with Mock Test 9 on 31st August.
Q) Retinoblastoma, the most common ocular malignancy of childhood, has the following features. Which statement is TRUE?
a) It is always unilateral and sporadic
b) Bilateral disease occurs in about one-third of cases
c) It is inherited in an autosomal recessive fashion
d) It is caused by mutation of the p53 gene on chromosome 17
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