Figure 4. Relationship between telomere length and telomerase activity. (A) Correlation between the average telomere length and telomerase activity at the same age. (B) Comparison of the regression curve between telomere dynamics and telomerase dynamics. Black curve, TRF length; Green curve, telomerase activity. G (dark gray shading), growth stage; Ado (clear), adolescent stage; Adu (light gray shading), adult stage.