Figure 8
![Figure 8](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1472-6750-8-69/MediaObjects/12896_2008_Article_338_Fig8_HTML.jpg)
Pair-wise comparisons of averaged profiles of the three different prep types: HeLa cells. Total gene signals for each miRNA for all hybridizations of the same RNA prep (hybridization replicates) were averaged, and then these averaged individual prep profiles for all the preps of the same prep type were averaged together to get a mean profile for each of the three prep types. Scatter plots show these averaged profiles from one prep type plotted against another for HeLa cells. Error bars indicate one standard deviation. Numbers indicate the identity of all miRNAs whose signal strengths are at least two-fold higher in one prep type than another, after normalization.