Question

Which of the following are true about amino acids?

• A. Glycine is the only naturally occurring amino acid which is optically inactive
• B. Most of naturally occurring amino acids have D-configuration
• C. Alanine having one amino and one carboxylic group
• D. Amino acids are the constituents of all proteins

Answer 1

Answer: (A), (D)

Most of the naturally occurring amino acids have L-configuration.