Fig. 2From: The mRNA expression and enzymatic activity of three enzymes during embryonic development of the hard tick Haemaphysalis longicornisExpression (a) and enzymatic activity (b) profiling of cathepsin B during embryonic development in H. longicornis. Each point represents the mean ± SEM of three independent biological experiments and the different letters indicate significant differences (P < 0.05)Back to article page