F. Sanger was the first scientist who determined the _ structure of a protein molecule.
Correct answer: A. Primary
- A. Primary
- B. Secondary
- C. Tertiary
- D. Quaternary
Explanation
F. Sanger was pivotal in determining the primary structure of proteins, specifically the insulin protein, by establishing the precise sequence of its 51 amino acids. This work laid the foundation for understanding how proteins are built at the most basic level. The primary structure is distinct from higher-level structures, such as secondary, tertiary, and quaternary, which involve various degrees of folding and assembly of the polypeptide chains. The incorrect options describe these higher-level structures, which were not the focus of Sanger's groundbreaking research.
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