Back قسيم طرفي Arabic Теломер Bulgarian টেলোমিয়ার Bengali/Bangla Telomera BS Telòmer Catalan Telomera Czech Telomer Danish Telomer German Τελομερές Greek Telomero Esperanto
A telomere (/ˈtɛləmɪər, ˈtiːlə-/; from Ancient Greek τέλος (télos) 'end' and μέρος (méros) 'part') is a region of repetitive nucleotide sequences associated with specialized proteins at the ends of linear chromosomes (see Sequences). Telomeres are a widespread genetic feature most commonly found in eukaryotes. In most, if not all species possessing them, they protect the terminal regions of chromosomal DNA from progressive degradation and ensure the integrity of linear chromosomes by preventing DNA repair systems from mistaking the very ends of the DNA strand for a double-strand break.