Cancer
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Cancer
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Question:
Describe how telomeres function.
Answer:
This limit is set by the presence of repeated sequences of DNA at the tips of the chromosomes called telomeres.
In young cells, the sequence TTAGGG is repeated hundreds or thousands of times but each time the cell divides, it loses 50 to 200 of these repeats. Cells that have divided many times have fewer of these repeats left.