Which of the following compound shows aromatic properties ?
Valine
Leucine
Serine
Tyrosine
Amino acids have peptide linkage which is :
-CO-NH-
-C-NH2
SO-NH-
-CO-N-
A.
Amino acids are liked together with the help of peptide bond or peptide linkage. Peptide bond is -CO-NH-.
The non-essential amino acid among the following is:
Alanine
Lysine