JUMPING GENES AS DNA PARASITES? Transposable elements (TE ) “are found in many major branches of life. They may have originated in the last universal common ancestor, or arisen independently multiple times, or perhaps arisen once and then spread to other kingdoms by horizontal gene transfer. While some TEs may confer benefits on their hosts, most are regarded as selfish DNA parasites. In this way, they are similar to viruses… leading to speculation that they share a common ancestor.””
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