Asked by Havon
Identify which scientist or group of scientists was responsible for making each of the following discoveries.
The double-helix structure of DNA:
The chemical composition of proteins:
The monomer of nucleic acids:
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- The double-helix structure of DNA: James Watson and Francis Crick (with crucial X‑ray diffraction data from Rosalind Franklin and Maurice Wilkins).
- The chemical composition of proteins (proteins are polymers of amino acids linked by peptide bonds): Emil Fischer (building on earlier work by Gerardus J. Mulder and the naming by J.J. Berzelius) — Fischer showed amino acids and peptide linkages.
- The monomer of nucleic acids (the nucleotide): Phoebus A. Levene identified the sugar, phosphate and base components and proposed nucleotides as the repeating units (Friedrich Miescher earlier discovered “nuclein”/DNA).
- The chemical composition of proteins (proteins are polymers of amino acids linked by peptide bonds): Emil Fischer (building on earlier work by Gerardus J. Mulder and the naming by J.J. Berzelius) — Fischer showed amino acids and peptide linkages.
- The monomer of nucleic acids (the nucleotide): Phoebus A. Levene identified the sugar, phosphate and base components and proposed nucleotides as the repeating units (Friedrich Miescher earlier discovered “nuclein”/DNA).
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