
Crick and Watson's DNA Molecular Model
1953
1953
1953
1955
1960
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1953
1955
1957
circa 1956
circa 1956-1959
1964
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1953
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circa 1956
1960
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1962
1952-3
1960
1955
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1957
1962
circa 1960
1957
1955-1965
1963
1965
circa 1955
1957
1962
1958
1956
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1964
1952
1963
1962
1963
1959
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1954
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1952
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1962