Biology · Human Physiology
Which hormone is primarily responsible for regulating the sleep-wake cycle and circadian rhythms in humans?
- 1Dopamine
- 2Adrenaline
- 3Melatonin✓
- 4Insulin
Correct answer
Melatonin
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Preparing for Biology?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Want more practice questions on Human Physiology?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Biology · Human Physiology