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== Genetic Incongruity Scan ==
The Genetic Incongruity Scan or GIS is the blood test developed by [[Ultracorps]], in order to indentify Different individuals. The test was first designed in 2002 and became mandatory for all Metro Area citizens after the passage of the [[Different Acts of 2005]]. In 2007, the test was redesigned into its current two-part system with the first  carrier test, and then the more intense GIS scan.


The GIS operates by identifying the extra chromosomal pair all Different individuals posses. The first portion of the test, involves applying a drop of the individuals blood onto a "Carrier Test Sheet."  The sheet is a 3-inch strip of paper that has been treated with a series of chemicals. The chemicals turn the paper blue if the extra chromosomal pair is detected.

  
Only 10% of carriers of the extra Chromosomal pair, are actually Differents. The extra chromosomes in 90% of carriers are made up of junk genetic information. They do not have any effect on the individual. The other 10% contain manful genetic code on their extra chromosomes. The second part of the GIS involves manual inspection of the genetic information found on the extra chromosomes, to determine if they are going to affect the individual.


Most Differents, do not develop the extra pair of chromosomes until a year before their abilities manifest. This Differentiation usually occurs between the ages of 13-16, although some individuals have been born expressing the extra chromosomal pair. Therefore, children are given the GIS Carrier test at birth and then again annually between the ages of 10 and 17. Any individuals immigrating to the Metro Areas must also be tested.


The GIS system is estimated to indentify 97% of Different individuals tested. The weakness of the tests is largely human. Occasionally the tester assigned to inspect the pair of chromosomes will misidentify the genetic information found as junk, when in fact the individual is a Different. There have also been instances of testers being bribed in order to hide results.