How Duchenne/Becker Muscular Dystrophy is Inherited | DuchenneXchange

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How Duchenne/Becker Muscular Dystrophy is Inherited

key information

source: Centers for Disease Control and Prevention

summary/abstract:

The change in the gene that causes Duchenne/Becker muscular dystrophy (DBMD) happens on the X chromosome. A boy gets an X chromosome from his mother and a Y chromosome from his father. Only the X chromosome can have the changed gene that causes DBMD. Females almost never have DBMD because they have two X chromosomes. Even if a female has one X chromosome with the DBMD gene, her second X chromosome usually will make enough dystrophin to keep her muscles strong.

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