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In a polypeptide , amino acids are linked by 

Option: 1

an ester bond 


Option: 2

a hydrogen bond 


Option: 3

a covalent bond 


Option: 4

a peptide bond 


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As we have learned

Peptide Bond -

In a polypeptide or a protein, amino acids are linked by a peptide bond which is formed when the carboxyl (-COOH) group of one amino acid reacts with the amino -NH2 group of the next amino acid with the elimination of water (dehydration).

 

- wherein

Peptide Bond

 

 

 

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Gaurav

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