Question

Tyrosine act as a precursor for which of the following hormones?

• A. Thyroid
• B. Adrenal
• C. Prolactin
• D. FSH

Answer 1

The correct option is A Thyroid

• Thyroxine (3,5,3',5'-tetraiodothyronine) is the thyroid hormone produced by follicular cells of the thyroid gland.
• Thyroxine hormone is produced in the thyroid gland from tyrosine and iodine.
  
• Hence the precursor for the synthesis of thyroid hormone is amino acid Throne.
• Tyrosine (symbol Tyr or Y) or 4-dihydroxyphenylalanine is one of the 20 standard amino acids.
  
• So, the correct answer is 'Thyroid'.