NEET 2016
- Exam
- NEET
- Year
- 2016
- Subject
- Zoology
- Chapter
- Chemical Coordination and Integration
NEET 2016 · Zoology · Chemical Coordination and Integration
The amino acid tryptophan is the precursor for the synthesis of:
The amino acid tryptophan is the precursor for the synthesis of:
Options
- AMelatonin and Serotonin
- BThyroxine and Triiodothyronine
- CEstrogen and Progesterone
- DCortisol and Cortisone
Correct answer
A. Melatonin and Serotonin
Step-by-step solution
Amino acid tryptophan is the precursor for the synthesis of melatonin and serotonin. These are neurotransmitters derived from the amino acid tryptophan. Within the pineal gland, serotonin is acetylated and then methylated to yield melatonin.