Description- Sickle-cell anemia is a heredity blood disease. Those who have sickle-cell anemia have red blood cells containing an abnormal type of hemoglobin called Hemoglobin S. A normal person's red blood cells have Hemoglobin A, and are round and soft which makes it easy for them to pass through the small blood vessels. The lifespan of a normal blood cell is approximately 120 days. But those with sickle-cell anemia lack normal hemoglobin, and their lifespan is only 16 days. Hemoglobin is the substance that makes blood red and that carries oxygen to the body tissues. …
