Which of the following is not a derivative of the amino acid (Tryptophan)?
A . Melatonin
B . Serotonin
C . Creatine
D . Niacin
Answer: C
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Which of the following is not a derivative of the amino acid (Tryptophan)?
A . Melatonin
B . Serotonin
C . Creatine
D . Niacin
Answer: C
Latest And Valid Q&A | Instant Download | Once Fail, Full Refund