Development of the urinary bladder is from-: (A) Urogenital Sinus, (B) Paramesonephric Duct, (C) Metanephric Blastema, (D) Proctodaeum
Answer is A. Ans. is 'a' i.e., Urogenital Sinus * The urinary bladder (except trigone) is derived from vesicourethral canal, cranial part of urogenital sinus (endodermal). Trigone is derived from Absorbed part of Wolffian duct/mesonephric duct (mesodermal).