One of the most infamous elements of science fiction is genetic engineering. Numerous times in the Star Trek universe, genetic engineering has been depicted as resulting in trouble and therefore branded as illegal. In the comic book universes, genetic engineering was usually at the hands of dubious, secretive scientific teams.
So conventional science fiction portrays the pain of genetic engineering as legal and societal. But what about physical pain? If a healthy adult has been injected with genetic engineering for whatever reason, will he suffer physical pain of any sort?