Figure 1.

Correlation between Z-score and P-value of genetic robustness for all the 1,082 miRNAs at threshold level T₁. For each real pre-miRNA, the robustness ${\gamma }_1^m$ is compared with that of 1,000 random sequences (a) and random pseudo pre-miRNAs (b), and the Z-score and P-value are computed. The curve for a normal distribution of mean 0 and a standard deviation of 1 is also displayed.