<prompt> Pseudohermaphroditism in a female child is most commonly due to-21-hydroxylase deficiency17-hydroxylase deficiency11-hydroxylase deficiency3-hydroxylase deficiency  <response>: Ans. is a Le., 21-hydroxylase deficiency Classic 21-hydroxylase deficiency is the most common cause of Ambiguous genitalia in a new born. Virilization is usually apparent at bih in females Le Pseudohermaphroditism of a female child 