Lanes three and five of the agrose gel electrophoresis show three bands in each lane. The band at the top of the gel is the DNA, which is electrically charged and ran up to the positive end of the gel. The two bans lower in the lanes show RNA present in the sample. In lanes four and six there is one band at the top of the gel but no bands below. The band at the top is again the DNA which ran to the positively charged end of the gel. These two lanes were treated with RNase, which explains why there are no other bands in the gel. The RNase enzyme appears to have successfully broken down the RNA in the treatment samples.
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