08 JUN 2012 by ideonexus

 One Half of DNA is Parasitic

Parasites are not only incredibly diverse; they are also incredibly successful. There are parasitic stretches of DNA in your own genes, some of which are called retrotransposons. Many of the parasitic stretches were originally viruses that entered our DNA. Most of them don't do us any harm. They just copy and insert themselves in other parts of our DNA, basically replicating themselves. Sometimes they hop into other species and replicate themselves in a new host. According to one estimate, ro...
Folksonomies: evolution genetics dna viruses
Folksonomies: evolution genetics dna viruses
  1  notes

This doesn't sound right to me, but the claim is that Viruses have inserted so much DNA into our genomes.