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Question

Primary structure of proteins is due to the presence of


A
peptide bonds
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B
disulphide (SS) linkages
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C
hydrogen bonds
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D
ionic bonds
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Solution

The correct option is D peptide bonds
Proteins are the compounds of Nitrogen, Oxygen and hydrogen and these are present all over in the body. The structure of a protein is due to different amino acids. The amino acid is the basic units of proteins which when bound together by peptide linkage forms complex protein structure where one carboxyl group of one amino acid bonds with an amine group of another amino acid. The bond is known as peptide Bond.
The primary structure is a covalent connection of a protein. It refers to the linear sequence number and nature of amino acids bonded with peptide bond only.

So, the correct option is 'peptide bonds'

Biology

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