
Crick and Watson's DNA Molecular Model
1953
1953
1953
1955
1839 (original); circa 1988 (replica)
circa 1955
1955; 1830
1955
1954-1955
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1955
circa 1953
2000-100 BCE
1954
1953
1954
circa 1955
1955
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1953
May 1953
1953
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1953
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1955