The main structural feature of proteins is [MNR 1987; MP PET 1993, 97,

1.	The main structural feature of proteins is [MNR 1987; MP PET 1993, 97, 2004]
A.	The ester linkage
B.	The ether linkage
C.	The peptide linkage
D.	All of these
Answer» D. All of these

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The main structural feature of proteins is [MNR 1987; MP PET 1993, 97, 2004]

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