Genetic variants can be either inherited, meaning they are passed down from a parent, or de novo, meaning they were not inherited from either parent. In the case of inherited variants, these can be either heterozygous (meaning the variant occurs in only one copy of the gene) or homozygous (meaning the variant occurs in both copies of the gene). If the Probably Genetic Complete Test identifies a variant, it can give you information on both the type of variant as well as whether it is inherited or de novo, if a trio test is ordered. This information is best used by your or your child's doctor to determine options for treatment and family planning.