The 14 markers that are standard for states
participating in the FBI's crime-solving database. The same set of
markers is used in paternity tests and our DNA Fingerprint Test. For a complete description, go to CODIS information page.
Spread across all chromosomes except for the sex chromosomes, thus qualifying as genome-wide, the 13 standard or core CODIS markers (14 with the addition of AMEL, which shows sex) are:
The official order of the 13 core CODIS loci given within the CODIS system itself is:
Each locus has two values, one from the father, one from the mother, though it is not possible without the mother or father's own profile to say who contributed which.
A typical profile in the locus order used by our lab (together with the range of values to the right) is:
In this scheme, green designates the 9 best known CODIS markers, yellow an extra 4 used in an amplified test kit, and blue an additional two loci part of the Identifiler system adopted in Europe.