The genetic history of the British Isles is the subject of research within the larger field of human population genetics. It has developed in parallel with DNA testing technologies capable of identifying genetic similarities and differences between populations.he genetic history of the British Isles is the subject of research within the larger field of human population genetics. It has developed in parallel with DNA testing technologies capable of identifying genetic similarities and differences between populations.
Brittle diabetesâalso called labile diabetesâis a rare but serious form of the disease in which there are dramatic and often unpredictable fluctuations in blood sugar levels. Blood sugar naturally rises and falls throughout the day in response to meals, exercise and other factors.
Osteogenesis Imperfecta in Children. Osteogenesis imperfecta (OI), also known as brittle-bone disease, is a genetic (inherited) disorder characterized by bones that break easily without a specific cause.An estimated 20,000 to 50,000 people in the U.S. have this disease. OI can affect males and females of all races.he cause of OI is believed to be because of a genetic defect that causes imperfectly formed or an inadequate amount of bone collagen, a protein found in the connective tissue. The following are the most common symptoms for OI. However, each child may experience symptoms differently.