This map will further disease research by locating the genes on particular chromosomes so that DNA tests can be used to determine a dog's genetic health before breeding. (canismajor.com)
«By directly comparing and contrasting both disorders, we found that OCD heritability appears to be concentrated in particular chromosomes — particularly chromosome 15 — while TS heritability is spread across many different chromosomes.» (uchospitals.edu)
Such studies require fairly large groups of participants, and while they are unable to pinpoint the specific responsible DNA variant, they identify the region on a particular chromosome where modifier genes are located. (sciencedaily.com)