Multiple choice

Aromatic amino acids refer to the amino acids possessing an aromatic ring.

Which of the following aromatic amino acids contains an ionizable side chain?

  1. Tyrosine

  2. Valine

  3. Phenylalanine

  4. Tryptophan

  5. Lysine

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A Correct answer
Explanation

Tyrosine is the relevant aromatic amino acid having an ionizable side chain.