Synthesis of androgens

Why does a deficiency of 21-hydroxylase result in increased fetal synthesis of androgens ... 

LH Luteinizing hormone a polypeptide hormone that is similar in structure to FSH and, like FSH, is synthesized and secreted from the anterior pituitary in response to binding of GnRH. It binds to receptors on the thecal cells of the ovarian follicle to increase synthesis of androgens. When binding to receptors on the corpus luteum, it increases the synthesis of progesterone. 

Outline the synthesis of androgens and estrogens from progesterone. 

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