Q. Which of the following is amino acid has indole
A. ring in its side chain
B. Phenyl alanine
C. Tyrosine
D. Histidine
E. Tryptophan
Answer: tryptophan
A. ring in its side chain
B. Phenyl alanine
C. Tyrosine
D. Histidine
E. Tryptophan
Answer: tryptophan