There Is Alien DNA Everywhere.
Gene swapping is not alien from the perspective of an outer space origin, but a very interesting DNA material transfer between unicellular and/or multicellular organisms. We are more familiar with the transfer of genetic material vertically, from parent to offspring, but gene swapping involves a horizontal transfer of genetic material, which is most common in single celled organisms, and this explains the primary reason for the spread of antibiotic resistance in bacteria. Genetic engineering is a form of horizontal genetic transfer. The possibilities for science appear almost limitless.
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