1 MCQs in Surgery for NEET PG
A 42-year-old man presents with a pulsatile mass in the neck and tinnitus. Imaging reveals a carotid body paraganglioma. Genetic testing identifies a germline mutation in the gene marked **A** in the diagram. His father had a similar tumor at age 38, but his mother, who carries the same mutation, remains asymptomatic. Which of the following best explains the inheritance pattern and clinical presentation associated with mutations in the structure marked **A**?
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