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NEET2004ZoologyMolecular Basis of InheritanceActual

The telomeres of eukaryotic chromosomes consist of short sequences of:

Options

  1. Athymine rich repeats
  2. Bcytosine rich repeats
  3. Cadenine rich repeats
  4. Dguanine rich repeats.

Correct answer

D. guanine rich repeats.

Step-by-step solution

The ends of eukaryotic chromosomes contain repetitive DNA sequences called telomeres, which help to ensure that no information is lost from chromosome ends during DNA replication, rich in guanine repeats. Related Theory A highly conserved repetitive DNA sequence, (TTAGGG)n, present at the telomeres of human chromosomes. Each time a cell divides, the telomeres become shorter.

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