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This Swiss biologist discovered certain substances in the white
blood cells and named them 'nuclein'. They later came to be
known as 'Nucleic acids' and helped in the identification of DNA
as a carrier of inheritence.
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Concept 15 DNA and proteins are key molecules of the cell nucleus. In 1869, Friedrich Miescher isolated "nuclein," DNA with associated proteins, from cell nuclei. He was the first to identify DNA as a distinct molecule. Phoebus Levene was an organic chemist in the early 1900's.
Although James Watson and Francis Crick determined the double-helical structure of DNA, DNA itself was identified nearly 90 years earlier by Swiss chemist Friedrich Miescher. ... Miescher named this molecule "nuclein," which was later changed to "nucleic acid" and eventually to "deoxyribonucleic acid," or DNA.
Miescher named his discovery "nuclein," because he had isolated it from the nuclei of cells. Today, his discovery is known as deoxyribonucleic acid (DNA). ... The order, or sequence, of the nucleotides in DNA allows nucleic acid to encode an organism's genetic blueprint.
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