In vitro

In Vitroes are a fictional genetically engineered subspecies of humans in the science fiction television series Space: Above and Beyond. The name is etymologically derived from the Latin phrase "in vitro", which is used in science to refer to state of being in an artificial environment outside the living organism. Thus, In Vitro refers to the race not only being conceived in a laboratory, but also artificially gestated in glass and metal cylinders, to be "born" as young adults.

The In Vitroes were first farmed by the In Vitro Authority to fill the labor force gap after the population of Earth was decimated by a sterility-causing plague. Engineered with the best the genome has to offer, without the randomness of natural selection, In Vitroes are conceived from 'parents' that never actually lived as two human beings. They were composites of DNA from many sources thrown together in a petri dish to optimize the chances of getting the best traits possible. The race is a step up from cloning in that no two In Vitroes are alike; however they can share DNA with another In Vitro created from the same batch of constructed chromosomes, which would make two such individuals siblings. Genetically designed to be stronger, faster and less prone to illness, the In Vitroes were supposed to help bring the decaying human race back to its feet. They were created to be a servant caste, occupying jobs that were too dangerous, demeaning or strenuous for "Natural Born" humans. After they are born they serve a five-year period of indentured servitude to reimburse society for expenses associated with their creation.

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