For a person to get CF both of there parents must have a copy of the same gene a person will not inherit it if only one parent has the CF Gene.
Haemophilia
Haemophilia is the name of several hereditary genetic diseases that impair the body’s ability to control bleeding. Genetic deficiencies and are rare autoimmune disorder may cause lowered plasma clotting factor activity so as to compromise blood-clotting when a blood vessel is injured, a scab does not form and the vessel continues to bleed for an excessive period of time. The bleeding can be external, if the skin is broken by a scrape, cut or abrasion or it can be internal, into muscles, joints or hollow organs.
Haemophilia tends to affect many more men than women.
There is currently no cure for haemophilia but there is the possibility that the gene therapy remains a part or full cure to the genetically inherited disease to before the scientists come to a conclusion there are many more obstacles to overcome.
In most cases, haemophilia is inherited and affects mostly men. Women can carry the gene that causes haemophilia. When a woman who is a carrier has children, she has a 50% chance that her sons will develop haemophilia and a 50% chance that her daughters will become carriers. While sons of men with haemophilia will not inherit the disease, all daughters born to fathers who have haemophilia will be carriers. In addition, in about one third of all cases, there is no family history of the disease and haemophilia occurs as the result of a new gene mutation.
Sickle cell Anaemia
Sickle cell disease is an inherited blood disorder that affects red blood cells. People with sickle cell disease have red blood cells that contain mostly haemoglobin, this is an abnormal type. Sometimes these red blood cells become sickle-shaped (crescent shaped) and have difficulty passing through small blood vessels.
The type of person that this disease affects is Africans. The African American figures for this disease is 75,000 or 1in every 500.
Aside from a bone marrow transplant, there's no known cure for sickle cell disease. Transplants are complicated procedures and aren't an option for everyone. To qualify, a child would need a bone marrow donor providing a match with a low risk of being rejected. Even then, there are significant risks to the procedure, and there's always the chance of rejection of the transplanted marrow. Even without a cure, children with sickle cell disease can lead relatively normal lives. are available to help with the pain, whereas immunizations and daily doses of penicillin which is an antibiotic can help prevent infection.
You get the sickle cell disease through an inherited defective haemoglobin gene. In a person with sickle cell disease, the haemoglobin can take on an abnormal shape, distorting the shape of the red blood cell.
