Abstract:Telomeres, the nucleotide sequences that protect the ends of eukaryotic chromosomes, shorten with each cell division and telomere loss may be increased by factors such as oxidative stress. Telomere length (TL) decreases with age in several species, and TL or the change in TL (∆TL) have emerged as biomarkers reflecting experienced stress. In this study, we tracked changes in TL throughout the natural lifespan (from a few months to almost 9 years) of free-living house sparrows (Passer domesticus) in two differen… Show more
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