<prompt> All of the following are causes of propoionate sho stature EXCEPT?Turner syndromeDown syndromeOsteogenesis imperfectaChronic kidney disease  <response>: Osteogenesis imperfecta is one of the causes of dispropoionate sho stature, where the limbs are mainly involved, as compared to trunk. Osteogenesis imperfecta: MC cause of multiple fractures in childhood. Autosomal dominant Defected type 1 collagen. CF: Bone shape- not maintained. Deformed bones, fractures in different areas different stages of healing. Blue sclera Deafness Dentigerous imperfecta Rx: Gene therapy 