In Figure 4 , the target DNA used for a genetic study was digested with restriction enzyme enzymes Eco RI and Bam H1 in various reaction tubes. The samples were then electrophoresed and stained with a fluorescence dye. Carefully review the diagrams and respond to this question: The number of fluorescence-stained bands visible in the double digest ( Eco RI/ Bam HI) in Figure 4 is________ Figure 4 - Fluorescent Stained Gel.