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प्रश्न
Which scientist isolated 'nuclein' from white blood cells in pus in 1869, later identified as DNA?
पर्याय
James Watson
Friedrich Miescher
Erwin Chargaff
Rosalind Franklin
MCQ
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उत्तर
Friedrich Miescher conducted the first isolation of 'nuclein' from white blood cells (pus) in 1869. This was a landmark discovery that led to the eventual identification of this molecule as deoxyribonucleic acid (DNA). Chargaff discovered base equivalence rules later, while Franklin and Watson contributed to understanding its structure.
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