Sanger determined the structure of:
Correct answer: C. Insulin
- A. Haemoglobin
- B. Fibrin
- C. Insulin
- D. Keratin
Explanation
Frederick Sanger is renowned for his groundbreaking work in determining the amino acid sequence of proteins, most notably insulin. His research marked the first time a protein's sequence was fully understood, which was a major milestone in biochemistry and earned him a Nobel Prize. The other options, such as haemoglobin, fibrin, and keratin, were not the proteins whose structure Sanger determined. Haemoglobin's structure was elucidated by Max Perutz, while fibrin and keratin were not part of Sanger's key research accomplishments.
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