Which of the following is precursor of adrenaline and thyroxine synthesis ?
Correct answer: B. Tyrosine
- A. Phenyl alanine
- B. Tyrosine
- C. Tryptophan
- D. None of the above
Explanation
Tyrosine is converted to catecholamines, including adrenaline, and is also incorporated into thyroxine produced by the thyroid gland. Phenylalanine can form tyrosine, but it is not the direct precursor asked for here.
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