Telomere

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telomere

[′tel·ə‚mir]
(cell and molecular biology)
A centromere in the terminal position on a chromosome.

Telomere

 

the terminal segment of a chromosome. When chromosomes become fragmented, as through the action of ionizing radiation, some of the fragments may reunite, but they never reunite along the telomere. Consequently, telomeres prevent the joining of other segments of chromosomes.