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LH-PCR analysis of active microbial taxa in Cronemiller Lake. (A) BrdU-labeled lake water DNA. (B) Active fraction isolated from labeled lake water DNA by using anti-BrdU monoclonal antibodies and paramagnetic beads. (C) Control (unlabeled lake water DNA). (D) Control fraction isolated from unlabeled lake water DNA by using anti-BrdU monoclonal antibodies and paramagnetic beads. Dashed lines indicate the positions of the major peaks at 317 and 319 nucleotides.
