Question 1
Which is the most common solid tumor in children?
◦ Central nervous system (CNS) tumors
◦ Ewing sarcoma
◦ Kidney
◦ Soft tissue
Question 2
Which is associated with defects of the p53 tumor-suppressor gene?
◦ Retinoblastoma
◦ Li-Fraumeni syndrome (LFS)
◦ Down syndrome
◦ Neurofibromatosis