Fig. 1From: Development of a method for evaluating the mRNA transcription activity of influenza virus RNA-dependent RNA polymerase through real-time reverse transcription polymerase chain reactionStandard curve for segments 1 (a), 4 (b), and 5 (c). A standard curve was generated by plotting the threshold cycle (Ct). Ten-fold serial dilution (101–109 copies/µL) of standard DNA were used to generate a standard curveBack to article page