Question

Which of the following is a basic amino acid ?

• A. Serine
• B. Alanine
• C. Tyrosine
• D. Lysine

Answer 1

Answer: (D)

Lysine

Answer 2

Amine
Structure
Nature
Lysine
Basic (As it contains more number of - $NH_{2}$ groups as composed to $-COOH$ group)
Serine
Neutral
Alanine
Neutral
Tyrosine
Neutral