Which Hormone is a Derivative of Tryptophan and is Synthesized

Question

Which hormone is a derivative of tryptophan and is synthesized by pinealocytes?
A) oxytocin
B) somatostatin
C) inhibin
D) melatonin
E) progestin

Accepted Answer

Melatonin is a hormone that is derived from tryptophan and is synthesized by pinealocytes in the pineal gland.