DNA, the molecule of heredity, lies at the heart of all living organisms that we know of today. But considering its fundamental nature, it is curious that we owe the original discovery of this substance to such a thankless task as analysing pus from the bandages of hospital patients. It was in 1871 that the Swiss physician Friedrich Miescher (13 August 1844 – 26 August 1895) first described what would later be identified as the carrier of genes, laying the foundations for the subsequent research that would give rise to the new science of genetics.
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