Estrogen is most likely to exert its effect by regulating

a) protein kinases.

b) phospholipase C.

c) expression of genes and production of

specificproteins.

d) cyclic AMP

e) Ca2+.

c) expression of genes and production of specific proteins.

Explanation:

Estrogen is a lipid-soluble steroid hormone that diffuses through the lipid bilayer of the plasma membrane of its target cell. The hormone binds to its nuclear receptor and receptor-hormone complex then alters the expression of particular genes.

It triggers transcription of specific DNA sequences into mRNA which in turn enters the cytoplasm and serves as a template for synthesis of specific proteins.

Estrogen is the female sex hormone and stimulates development of secondary sexual characters in females as well as required for maturation of egg.