Carrier Status and Genetic Counseling Individuals who possess one copy of a recessive gene mutation but do not have the disease are known as carriers. A parent with the dominant form of osteogenesis imperfecta has a 50% chance with each pregnancy of passing the mutation on to their child, regardless of the child's sex.
How Collagen Mutations Elevate Bone Fracture Risk
Understanding whether parents are carriers provides crucial information about the statistical probability of passing the condition on. Genetic counseling plays a vital role for families with a history of brittle bone disease or for couples where one partner knows they are a carrier.
Parents who each carry one copy of the recessive gene are typically healthy themselves and often unaware they are carriers. In this scenario, a person inherits a single copy of the altered gene from just one parent to develop the disorder.
How Collagen Mutations Elevate Bone Fracture Risk
Family History and Probability If one parent has the condition, each child has a 1 in 2 chance of inheriting the mutation. Looking Ahead: Genetic Testing and Research.
More About How is brittle bone disease inherited
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