Human insulin is being commercially produced | vedclass

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(C) The correct answer is $(C)$. Insulin is now being commercially produced by genetic engineering. Human insulin consists of two short polypeptide ch

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Escherichia

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(C) The correct answer is $(C)$. Insulin is now being commercially produced by genetic engineering. Human insulin consists of two short polypeptide chains, chain $A$ and chain $B$, which are linked together by disulphide bonds. In mammals, insulin is synthesized as a prohormone containing an extra stretch called the $C$-peptide, which is removed during maturation. In $1983$, Eli Lilly, an American company, prepared functional insulin by introducing two $DNA$ sequences corresponding to the $A$ and $B$ chains of human insulin into the plasmids of $Escherichia$ $coli$ $(E. coli)$. These chains were produced separately, extracted, and then combined by creating disulphide bonds to form mature human insulin.

Human insulin is being commercially produced from a transgenic species of

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