Fig. 1From: Expression and characterization of hemagglutinin–neuraminidase protein from Newcastle disease virus in Bacillus subtilis WB800Gel electrophoresis analysis of HN gene (1734 bp) RT-PCR products. Lane 1: negative control. Lane 2: 1-kb DNA size marker (Fermentas #SM0311). Lane 3: demonstrating a thick bond of 1734 bp ampliconBack to article page