DMD is inherited in an X-linked recessive pattern. Since males have only one X chromosome, a mutation in the gene responsible for DMD is sufficient to cause the condition.4
Females have two X chromosomes, so a mutation would have to occur in both copies of the gene responsible for DMD to cause the disorder.4
In X-linked recessive inheritance, a female with one mutated copy of the gene can pass it on to her children. Every son and daughter of a female carrier has a 50% chance of inheriting the faulty gene. Sons who inherit the faulty gene will have DMD, while daughters will be carriers.4
DID YOU KNOW: Duchenne muscular dystrophy is inherited in an X-linked recessive pattern4
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