A 2-year-old girl is brought to the emergency department because of pain in her right forearm after a fall 1 hour ago. She has a history of fractures of the left femur and right tibia. Physical examination shows blue sclerae. There is tenderness to palpation over the distal right radius. A mutation in which of the following genes is the most likely cause of the recurrent fractures in this patient? (A) Calcitonin (B) Collagen, type I (C) 1α-Hydroxylase (D) Parathyroid hormone (E) Vitamin D receptor
Posted on: Mon, 06 Oct 2014 00:59:37 +0000