Review Question - QID 108842

A 40-year-old male presents to his primary care physician complaining of upper abdominal pain. He reports a four-month history of crampy epigastric pain that improves with meals. His past medical history is significant for hypertension that has been well controlled by lisinopril. He does not smoke and drinks alcohol occasionally. His family history is notable for a maternal uncle with acromegaly and a maternal grandfather with parathyroid adenoma requiring surgical resection. Based on clinical suspicion laboratory serum analysis is obtained and shows abnormal elevation of a peptide. This patient most likely has a mutation in which of the following chromosomes?