1 MCQs in Pediatrics for NEET PG
A 7-year-old boy presents with progressive distal lower-limb weakness, pes cavus, and hammer toes. Nerve conduction studies show markedly slowed motor conduction velocities (median NCV 18 m/s). FISH analysis of the patient's karyotype is shown, with the structure marked **A** representing the pathogenic finding. His mother has a similar clinical phenotype. Which of the following best explains the molecular pathogenesis of the neurological deficit in this patient?
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