Amino acids have peptide linkage which is :
-CO-NH-
-C-NH2
SO-NH-
-CO-N-
A.
-CO-NH-
Amino acids are liked together with the help of peptide bond or peptide linkage. Peptide bond is -CO-NH-.
Which of the following contributes to the double helical structure of DNA ?
Hydrogen bond
Covalent bond
Disulphide bond
van der Waals' force