Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
Structure of a typical prokaryotic cell
Squamous cell carcinoma
Induced Pluripotent Stem Cell
Plant Cell
animal cell
Resolution of the double Holliday junctions of homologous chromosomes
