Q. Which of the following is a basic amino acid ?
A) Alanine
B) Tyrosine
C) Lysine
D) Serine
Explanation
[Solution] Lysine has an extra $-NH_2$ group in its side chain. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.