Common precursor of mineralocorticoid, glucocorticoids and sex steroids:: (A) Pregnenolone, (B) a- hydroxyprogesterone, (C) Dehydrotesterone, (D) Deoxycorticoid
Answer is A. Ans. (a) Pregnenolone(Ref: Ganong, 25th ed/p.362)Adrenal steroid hormones are derived from cholesterolIn the mitochondria, cholesterol is converted to pregnenolone by cholesterol desmolase, also called as side- chain cleavage enzyme