| 1. | Telomeres are now known to be the clock of cell aging,
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| 2. | Eventually, the telomere becomes too short to protect the chromosome.
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| 3. | But each time a cell divides, the telomeres get shorter.
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| 4. | It keeps telomeres from shrinking, enabling cells to continue dividing.
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| 5. | People with shorter telomeres showed an 86 percent higher death rate.
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| 6. | Telomerase functions by adding bases to the ends of the telomeres.
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| 7. | With TERC levels down, telomere maintenance during development suffers accordingly.
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| 8. | Once stored in human telomeres, the virus is reactivated intermittently.
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| 9. | Regulation of telomerase activity is handled by telomere-binding proteins.
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| 10. | This gene encodes a protein that is involved in telomere function.
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