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One function of the telomeres in a chromosome is to

1. identify the correct number of the homologous pair of chromosomes
2. help two chromatids to move towards poles
3. "seal" the ends of chromosomes
4. start RNA synthesis

Correct answer: "seal" the ends of chromosomes

Solution

Telomeres are repetitive DNA sequences at chromosome ends that protect them from degradation and end-to-end fusion. Their role is to cap or “seal” the ends, not to guide pairing, movement, or transcription initiation.

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