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The telomeres of eukaryotic chromosomes consist of short sequences of

1. thymine rich repeats
2. cytosine rich repeats
3. adenine rich repeats
4. guanine rich repeats

Correct answer: guanine rich repeats

Solution

Eukaryotic telomeres are composed of short repetitive DNA sequences that are rich in guanine on the strand that forms the chromosome end. A classic example is the human repeat TTAGGG, which contains a guanine-rich motif.

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