| Characteristic | Genetic Disorder | Presentation(Inheritance Pattern) |
| Deletion or inactivation of normally active maternal allele on chromosome 15 | |
| Mutations in genes involved with collagen | |
| Defect in CFTR gene leading to abnormal CFTR channel | |
| Deficiency in lysosomal enzyme beta-glucocerebrosidase | |
| Trisomy 21 | |
| Germline mutation of p53 tumor suppressor gene | |
| Trinucleotide expansion in 3' UTR of DMPK | |
| Long repeats in FRDA gene results in dimished frataxin and impairment in mitochondrial functioning | |
| Microdeletion at chromosome 22q11 | |
| Absence of galactose-1-phosphate uridyltransferase | |