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The hormone produced by the pineal gland that regulates sleep-wake cycles in response to darkness isअंधेरे की प्रतिक्रिया में नींद-जागने के चक्र को नियंत्रित करने वाले पीनियल ग्रंथि द्वारा निर्मित हार्मोन का नाम है

Melatonin
मेलाटोनिन (Melatonin)
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This question belongs to the set "Biology Revision set 9 – Animal Behavior & Ethology – Top 100 Oneliner questions". Click below to read detailed notes and attempt the full quiz.

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