image: Bits of DNA floating in 1 liter (~1 quart) of water matched 12 different fish species. The bar graph depicts the number of 'reads' for each DNA sequence. Menhaden gave the most, about 20,000 ...
To obtain high-quality, purified nucleic acids, scientists can use several different methods, including phenol-chloroform extraction, cesium chloride/ethidium bromide (CsCl/EtBr) gradient ...
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