Some genetic conditions are more common in individuals from specific ethnic groups.
The preceding genetic disorders are all inherited by what is called autosomal recessive inheritance. For a person to have an autosomal recessive disease, both genes of the pair must be abnormal or malfunctioning in some way. A person who has a genetic pair consisting of one abnormal gene and one normal gene is considered a carrier for the disorder. If both parents are carriers for an autosomal genetic disorder, their baby has a 1 in 4 chance of inheriting an abnormal gene from each parent, which would result in the development of a genetic disorder. If you and your partner are tested and it is determined that you are both carriers of an abnormal gene associated with a genetic disorder, there are certain prenatal tests that can determine what combination of genes your baby has inherited and if the baby will develop this disorder.