Protein which acts as hormone is__________?
Correct answer: C. Oxytocin
- A. Casein
- B. Trypsin
- C. Oxytocin
- D. Keratin
Explanation
Oxytocin is a peptide hormone released from the posterior pituitary that promotes uterine contractions and milk ejection. Students may choose trypsin because it is a biologically active protein, but trypsin is a digestive enzyme rather than a hormone.
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