Congenital Adrenal Hyperplasia is due to deficiency of:
a. 21 beta hydroxylase(Ref: Nelson's 20/e p 2714-2723, Ghai 8/e p 526-527)Most common cause of Congenital Adrenal Hyperplasia is 21 beta hydroxylase deficiency.
21 beta hydroxylase
17 alpha hydroxylase
5 alpha reductase
17 beta reductase
Endocrinology