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Origin of DDRT-PCR fragments. Schematic illustrating the position of DDRT-PCR cDNA fragments in relation to full-length transcripts of (a) PrP and (b) Thy-1.2. Black boxes represent transcripts, with open reading frames in white. Areas of transcripts amplified by DDRT-PCR are shown as gray boxes. Sequences of regions matching arbitrary and anchored primers are detailed with mismatched pairs in bold.
