Question

Which one is the basic amino acid

• A. Lysine
• B. Leucine
• C. Aspartic acid
• D. Methionine

Answer 1

The correct option is A Lysine

An amino acid containing a second basic group (usually an amino group), is called basic amino acid. An basic amino acid that has a positive electric charge in solution at a pH of 7. The basic amino acids are arginine, histidine, and lysine. If the side chain contains an amine functional group, the amino acid produces a basic solution because the extra amine group is not neutralized by the acid group.

So, the correct answer is option A.