Erwin Chargaff was a biochemist who was born in Czernowitz, then Austro-Hungary.

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In 1934, he immigrated to the United States and joined the Department of Biochemistry at Columbia University.

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After completing his doctorate, Chargaff worked at Columbia University.

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Chargaff's work led to the discovery of the structural features of DNA.

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He also worked with Charlotte Green to separate DNA into components.

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In 1949, he switched his focus to studying DNA bases.

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He showed that the bases differ in quantity and arrangement, which led him to speculate that DNA might be the key to inheritance.

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