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AP Biology/Unit 4: Cell Communication and Cell Cycle
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Non-Genomic Estrogen Signaling
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In an experiment, cells were treated with estrogen and the phosphorylation states of various proteins were measured. Which observation would suggest that estrogen is activating non-genomic signaling pathways in addition to its classical genomic pathway?

A

Synthesis of new estrogen receptor proteins

B

Increased mRNA levels of target genes after 2 hours

C

Rapid phosphorylation of MAP kinases within minutes

D

Nuclear translocation of estrogen receptors

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