Final answer:
Telomerase overexpression is frequently observed in cancer cells, explaining their ability to replicate indefinitely.
Step-by-step explanation:
True.
Cancer cells frequently overexpress telomerase, which helps them replicate indefinitely. Telomerase is an enzyme that adds short repeated DNA sequences called telomeres to the ends of chromosomes. Telomeres protect the chromosomes from deterioration and ensure the stability of the genetic material during replication. In normal cells, telomerase is typically only active in germ cells, adult stem cells, and some cancer cells.