Enzyme Telomerase

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Question about telomerase and cancer….?

Overactive telomerase enzyme can delete the ends of chromosomes and cause cancer.

True or false.

I know that mutations of the telomeres can cause cancer, but I thought it was because it telomerase replicated the ends of the chromosomes, not deleted them?


This is false. An overactive telomerase keeps producing nucleotides making the end of a chromosome longer.

Interview with Elizabeth H. Blackburn, Ph.D., and Carol Greider, Ph.D.