Fig. 3From: Bacteriological and molecular characterization of Mycobacterium bovis isolates from tuberculous lesions collected among slaughtered cattle, Northwest EthiopiaGel electrophoresis of PCR products by RD4 typing of AFB and culture-positive isolates. (Lane 1: M. tuberculosis H37Rv DNA positive control; Lane 2: Distilled water as a negative control; Lane 3: M. bovis BCG DNA positive control; Lanes 4 to 21: PCR amplicons of culture-positive isolates DNAs; Lane MW: 100 bp molecular weight marker)Back to article page