<prompt> Hemivertebra is a defect of:BodyTransverse processSpinePosterior vertebral arches  <response>: Ans. A. Bodya. Vertebral bodies mainly develop from ventral sclerotome VS and thus hemivertebra is a defect of VS.b. Hemivertebra can lead to defects in the vertebral column - scoliosis.c. Posterior vertebral arches PVA contribute mainly to the lamina spines. PVA are contributed by the dorsal sclerotome. 