Describe what you understand by primary structure and secondary structure of proteins.
CBSE DELHI - SET 1 2011
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Primary structure of proteins: The protein in which amino acids are linked with each other in a specific sequence is said to be the primary structure of that protein.
Secondary structure of proteins: It refers to the shape in which a long polypeptide chain can exist i.e. $\alpha$- helix and $\beta$-pleated structure.
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