Multiple choice

Which among the following is a nonessential amino acid?

  1. Isoleucine

  2. Leucine

  3. Lysine

  4. Asparagine

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Asparagine is one of the 20 most common natural amino acids on Earth. It has carboxamide as the side-chain's functional group. It is a nonessential amino acid. Its codons are AAU and AAC.