Mutations or changes in the DNA that cause a gene have occurred over time in different parts of the world. Anyone can carry virtually any type of recessive genes however, there may be certain ethnic groups more likely to cover certain recessive genes because of where deportation originated. There are certain types of autosomal recessive disorders that could affect some populations, for example, we have the sickle cell anemia that could affect African-Americans; it is estimated that one in 12 African-Americans carry genetic disorders for the disorder. This disorder affects the red blood cells and durability to carbonic oxygen. We have cystic fibrosis that is the most common among people of European heritage and it is estimated that one in 30 caucasians are carriers of this mutated gene.
