Federal Bureau of Prisons. Our Locations. We have many facilities located throughout the nation: 122 institutions, 6 regional offices, a headquarters, 2 staff training centers, and 25 residential reentry management offices. We also administer contracts with private corporations to operate 12 additional correctional institutions. List of our locations.
These are genetic diseases that are due to an abnormal number or structure of the chromosomes. A frequent chromosome anomaly is Down syndrome. These are genetic diseases that are due to a mutation(s) in only 1 gen. They can be inherited in different ways: autosomal dominant, autosomal recessive, X-linked or Y-linked. Frequent monogenic diseases are cystic fibrosis, thalassemia and fragile X syndrome.
There are three major types of Down syndrome, the most common being Trisomy 21, which comprises 95% of the diagnoses. It is called Nondisjunction Trisomy 21, which means chromosome 21 did not disjoin from itself and divide evenly.