Final answer:
Short, repeated sequences of DNA are characteristic of telomeres, which are extended by the enzyme telomerase to protect genetic information in chromosomes.
Step-by-step explanation:
Short, repeated sequences of DNA are characteristic of telomeres. These repetitive sequences at the ends of linear chromosomes serve to protect genetic data during cell division and prevent the loss of coding sequences. In humans, the sequence TTAGGG is repeated numerous times to form the telomere. The enzyme telomerase plays a crucial role in maintaining these sequences by adding nucleotides to the ends of the chromosomes, allowing the complete replication of the terminal segments of DNA.