Fig 1. Relative telomere length in a subset of old (> 12 years) (n = 15) and young (< 3 years) (n = 24) animals.

Telomere length is shown as a ratio (T/S) of telomere copy number (T) to the HBB single copy gene (S). Data are shown relative to the young animals, adjusted for sex, and expressed as mean ± SE.