What is telomere explain in detail about it - tlooto, The Most Powerful AcademicGPT

Telomeres are specialized nucleoprotein structures found at the termini of linear eukaryotic chromosomes. These structures are composed of short, tandemly repeated DNA sequences—in humans, the hexanucleotide sequence TTAGGG repeated thousands of times—combined with a set of associated binding proteins forming a protective "cap" at the chromosome end[1][2]. Functionally, telomeres are essential for maintaining genome stability: they prevent the natural chromosome ends from being recognized as sites of DNA damage, thus avoiding inappropriate DNA repair activities such as end-to-end chromosome fusion, degradation, or activation of DNA damage checkpoints[1][3][4]. --- Structure and Components of Telomeres DNA Sequence: Telomeric DNA at each chromosomal end consists of thousands of TTAGGG repeats in vertebrates. The extreme 3' terminus of the telomeric DNA forms a single-stranded overhang, which can invade the double-stranded region and form a structure called the T-loop. This structure is