![]() Children born to two carriers, have a 25% chance of being homozygous dominant (unaffected), a 50% chance of being heterozygous (carrier), and a 25% chance of being homozygous recessive (affected). If, however, only one mutant copy of the gene is inherited, the individual will be a carrier of the condition, but will not be present with any symptoms. If both parents have an autosomal recessive condition, there is a 100% likelihood of passing on the mutated genes to their children. ![]() Children, who do not inherit the abnormal gene, will not develop the condition or pass it on to their offspring.Īutosomal recessive: Autosomal recessive conditions are traits or disorders that occur when two copies of an abnormal gene have been inherited on a non-sex chromosome. If an individual has an autosomal dominant condition, the chance of passing the abnormal gene on to their offspring is 50%. The abnormal gene dominates, masking the effects of the correctly function gene. In these types of conditions, the individual has one normal copy and one mutant copy of the gene. (Source: Barber Say Syndrome Genetic and Rare Diseases Information Center (GARD) of National Center for Advancing Translational Sciences (NCATS), USA.)Īutosomal dominant: Autosomal dominant conditions are traits or disorders that are present when only one copy of the mutation is inherited on a non-sex chromosome. What are the Causes of Barber Say Syndrome? (Etiology) It is always important to discuss the effect of risk factors with your healthcare provider. Some risk factors are more important than others.Īlso, not having a risk factor does not mean that an individual will not get the condition. A risk factor increases one’s chances of getting a condition compared to an individual without the risk factors. It is important to note that having a risk factor does not mean that one will get the condition.
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