<prompt> Vagina develops from -Mesonephric ductParamesonephric ductWolffian ductEctoderm  <response>: Ans. is b i.e., Paramesonephric duct o Vagina is derived from two sources:-i Upper 23rd: It is derived from Utero-Vaginal Canal, i.e. the fused part of paramesonephric duct. Therefore, this part is mesodermal in origin.ii Lower l3rd: It is derived from sinovaginal bulb which intum is derived from urogenital sinus. Thus, this part is endodermal in origin. 