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.

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answer:

sequence 1- deletion

                  2- duplication

                  3- insertion

                  4- substitute

                  5- inversion