Solved UPSC CDS/OTA Question
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Q · Reproductive Systemmedium · 45s
The secretory phase is regulated primarily by:
TopicReproductive System
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Following ovulation, progesterone from the corpus luteum converts the proliferative endometrium into a secretory lining rich in glycogen and blood vessels, ready for implantation.
Final Answer: Option C - Progesterone