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(genetic biology)

Grammar: noun
plural: telomeres
Definition: the long end-sequences of a DNA strand occurring at the tip of chromosomes
Example:
1. Telomeres consist of a type of repetitive DNA that usually consists of one hundred to fifteen hundred copies of a single DNA sequence.

2. The only cells in which telomeres are protected from shortening during division are those that produce sperm or eggs.
Related Word: telomerase (noun), telomeric (adjective)