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Review Question - QID 107999

In scope icon M 2 B
QID 107999 (Type "107999" in App Search)
A 4-month-old boy with a history of multiple infections presents with muscle stiffness. On physical exam, he is found to have carpopedal spasm as well as a heart murmur. Based on your clinical suspicion you decide to obtain a chest X-ray which shows a diminished shadow in the mediastinum. A mutation in which of the following chromosomes is the most likely cause of this patient's presentation?