Task: Text Categorization
Input (English): The shelterin complex protects these entities from non-homologous end joining, and they can form G-quadraplexes with bonding between G and C sequences. The TRAP assay is used to study the activity of enzymes associated with them. Disruptions in TFR2 binding to these regions results in damage signaling. The RNA-containing enzyme that extends these was discovered by Blackburn and is responsible for the characteristic repeat of these entities. Their shortening causes the end-replication problem, which leads to the Hayflick limit on eukaryotic cell division. For 10 points, name this region found at the end of linear chromosomes.
Output (English): Science