Describe the role of telomerase in promoting unregulated cell division
Answers:
Telomerase is an enzyme that adds DNA to the ends of chromosomes, known as telomeres. In normal cells, telomeres shorten as the cell divides, ultimately leading to cell senescence or death. In cancer cells, telomerase is reactivated, allowing the cell to maintain its telomere length and promote unregulated cell division.
Telomerase is an enzyme that adds DNA to the telomeres of chromosomes.
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Senescence is a state of permanent cell growth arrest that occurs in normal cells as a result of replicative exhaustion or DNA damage.
The role of telomerase in promoting cancer growth is by reactivating telomerase in cancer cells, allowing them to maintain their telomere length and promote uncontrolled cell division. This contributes to the limitless replicative potential of cancer cells, enabling them to evade cellular senescence and death.