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Question

Telomere repetitive DNA sequences control the function of eukaryote chromosomes because they:

A
are RNA transcription initiation
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B
help chromosome pairing
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C
prevent chromosome loss
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D
act as replicons
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Solution

The correct option is C prevent chromosome loss
Telomeres are ends of a chromosome. The repetitive DNA sequences are stable and resistant to exonuclease digestion. Also, DNA gets shortened after every replication cycle at the ends. So, the telomeres make sure that the essential DNA stretches are not deleted. Hence, they are essential for chromosome stability.

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