Question

Identify the correct statements.

A. Arginine and Tryptophan are essential amino acids.

B. Histidine does not contain heterocyclic ring in its structure.

C. Proline is a six membered cyclic ring amino acid.

D. Glycine does not have chiral center.

E. Cysteine has characteristic feature of side chain as .

Choose the correct answer from the options given below:

Option