Transposable Genetic Elements · Zoology

In eukaryotes, transposable elements constitute:

  1. A negligible fraction of the genome
  2. Only the protein-coding regions
  3. A significant portion of the genome
  4. Only the mitochondrial DNA
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Correct answer: A significant portion of the genome

Transposable elements make up a remarkably large fraction of eukaryotic genomes. In humans, TEs (primarily LINEs, SINEs, and DNA transposons) account for approximately 45-50% of the genome, making them the most abundant component of our DNA.

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