An introduction to manifesting carriers

In Duchenne and Becker muscular dystrophy cases, the most common situation is that the mother carries the faulty gene and passes it to her children, with only her male children showing symptoms of either condition. However, some women also show symptoms themselves that relate to the genetic fault that causes Duchenne muscular dystrophy or Becker muscular dystrophy , which makes them manifesting carriers. Until recently this condition has been little understood and infrequently diagnosed. It's now estimated that, among women known to be carriers of Duchenne muscular dystrophy or Becker muscular dystrophy, one in 10 might fall into this category.

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