<prompt> In humans, telomeres have the following sequence5-GGCTTG-35-TTAGGG-35-TAACGT-35-GTAGGC-3  <response>: The ends of each chromosome contain structures called telomeres. Telomeres consist of sho TG-rich repeats. Human telomeres have a variable number of repeats of the sequence 5-TTAGGG-3, which can extend for several kilobases. Ref: Biochemistry by U. Satyanarayana 3rd edition Pgno : 531 