Why does the presence of telomeres protect the ends of linear chromosomes?
A. Telomere DNA is resistant to nuclease activity.
B. The telomeres represent large "buffer zones" of DNA sequence that do not code for biomolecules. Loss of these sequences is easily tolerated.
C. Every time somatic cells replicate, telomerase extends the ends of the chromosomes.
D. Specialized telomere-binding proteins prevent loss of DNA during replication.
E. None of these choices is correct.
B
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