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AP Biology/Unit 4: Cell Communication and Cell Cycle
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Lactation Positive Feedback Mechanism

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Which of the following molecular interactions is most directly responsible for the positive feedback mechanism of lactation?

A

Prolactin inhibits dopamine production in the hypothalamus

B

Progesterone stimulates alveolar cell proliferation

C

Estrogen downregulates prolactin receptor expression

D

Oxytocin binding causes myoepithelial cell contraction and milk ejection

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