| http://www.w3.org/ns/prov#value | - Moreover, an ???isolated??? nucleic acid molecule, such as a cDNA molecule, can be substantially free of other cellular material, or-culture medium when produced by recombinant techniques, or chemical precursors or other chemicals when chemically synthesized; the language ???substantially free of cellular material??? includes preparations of nucleic acid molecules having less than about 30% (by dr
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