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Biology · PYQ NEET UG 2016(1)

हिन्दी

The amino acid tryptophan is the precursor for the synthesis of

  1. melatonin and serotonin
  2. cortisol and cortisone
  3. estrogen and progesterone
  4. thyroxine and triiodothyronine

Correct answer · Option 1

melatonin and serotonin

Explanation

Tryptophan is an essential amino acid that serves as the biochemical precursor for the synthesis of the neurotransmitter serotonin and the hormone melatonin.
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