Telomeres are specialized nucleoprotein structures at the ends of linear chromosomes, and the ends of human chromosomes are covered by telomeres. Telomeres contain approximately 5-15 kb of TTAGGG-rich double-stranded repetitive sequences and a shelterin protein complex that protects the chromosome ends, with G-rich single-stranded overhangs at the 3' end, and are essential for maintai... https://www.cd-genomics.com/longseq/resource-human-telomere-sequence.html