Is Robinow syndrome inherited ?
How is Robinow syndrome inherited? Robinow syndrome may be inherited in an autosomal recessive or autosomal dominant manner. Autosomal recessive (AR) inheritance means both copies of the responsible gene in each cell must have a mutation for a person to be affected. The parents of a person with AR Robinow syndrome usually each carry one mutated copy of the gene and are referred to as carriers. Carriers typically are unaffected. When two carriers of AR Robinow syndrome have children together, each child has a 25% (1 in 4) chance to be affected, a 50% (1 in 2) chance to be an unaffected carrier like each parent, and a 25% chance to be unaffected and not a carrier. Autosomal dominant (AD) inheritance means that having only one mutated copy of the responsible gene in each cell is enough to cause features of the condition. Some people with AD Robinow syndrome inherit the mutated gene from an affected parent. In other cases, the mutation that causes the condition occurs for the first time in the affected person. When a person with AD Robinow syndrome has children, each child has a 50% chance to inherit the mutated gene.