Research Article

Double-Gene Copromoting Expression Analysis in tPA/GH Transgenic Goat Mammary Epithelial Cells and Thrombolytic Activity of tPA In Vitro

Figure 4

Detection of transfected GH gene in goat mammary epithelial cells by PCR. 1-8: monoclonal mammary epithelial cell DNA; M: DL2000 digested DNA Marker; P: positive control (BLC14/GH plasmid); N: negative control (normal cell genome).