Identify the correct pair having amino acid (A) and the hormone (B) that is iodinated derivative of the amino acid (A).
(T and Y represent one letter code for amino acids)

Amino acid (A)                Hormone (B)

The thyroid gland synthesises the hormone thyroxine (also written as T4).
This hormone is produced by iodinating certain residues of the amino acid tyrosine that are present in the storage protein thyroglobulin.

Hence, thyroxine is an iodinated derivative of tyrosine.

In the standard one-letter code for amino acids, tyrosine is represented by the letter “Y”, while threonine is represented by “T”.

Among the given options the only pair that correctly states the amino acid and the corresponding iodinated hormone is:

Option C Y (Tyrosine), Thyroxine