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Pro-insulin contains an extra stretch removed during maturation, called the:
AB chain end
BD ring loop
CC peptide
DA chain end
Answer & Solution
Correct answer: C. C peptide
1. Insulin has chains A and B joined by disulphide bridges.
2. The pro-hormone carries one more piece.
3. That is the C peptide.
_Source: NCERT Class 12 Biology, Chapter 12, Biotechnology and its Applications._
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