Pathology Pediatrics, environment and nutrition 9d0826f0 In an infant, bone marrow biopsy is done from A Tibia B Sternum C Posterior superior iliac spine D iliac crest High-Yield Explanation . The tibia is the site for bone marrow biopsy in the newborn infant and in children under 2 years of age. Ref Robbins 9/e pg 261-262