To obtain high-quality, purified nucleic acids, scientists can use several different methods, including phenol-chloroform extraction, cesium chloride/ethidium bromide (CsCl/EtBr) gradient ...

Nov. 15 (UPI) --The well-preserved remains of a woolly mammoth found in Siberia enabled scientists to extract RNA for the first time and learn more about the animal. The woolly mammoth died about ...