The non-essential amino acid among the following is:
valine
leucine
alanine
lysine
Non essential amino acids are those which produce in the human body itself.
Essential amino acids are those which do not produce in the human body & we have to take them from outside sources.
Alanine is the non-essential amino acid.
Option 3 is correct.
valine
Option 2)leucine
Option 3)alanine
Option 4)lysine