Figure 1 (IMAGE) Science China Press Caption Graphs of the minimum thresholds of (a) R1 and (b) R2 at the 99 percent confidence level using multiple-tube approaches. m is the number of times the threshold that recorded an allele appeared; n is the number of replicates. Credit ©Science China Press Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.