FIG. 2.
Tests for Mtv-7 Sag and other MMTV sag sequences in genomic DNAs of various mouse strains. (Left) PCR product for Mtv-7 sag-specific sequences. Lanes (left to right): C3H/BiDa, BR, PE, CZ, and markers. The arrow indicates the position of the predicted 319-bp product. (Right) PCR product for common MMTV sag sequences. Lanes (left to right): markers, C3H/BiDa, BR, PE, and CZ. The arrow indicates the position of the predicted 1,018-bp product. A PCR control is shown at the bottom of the figure. PCR was carried out as described in Materials and Methods.